./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec11_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b 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_spec11_product23.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 dc94b11b9bf104a1982bd595975574e7febd0128133afbc196759ccbde82033d --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 14:32:32,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 14:32:32,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 14:32:32,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 14:32:32,299 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 14:32:32,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 14:32:32,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 14:32:32,302 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 14:32:32,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 14:32:32,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 14:32:32,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 14:32:32,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 14:32:32,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 14:32:32,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 14:32:32,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 14:32:32,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 14:32:32,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 14:32:32,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 14:32:32,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 14:32:32,312 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 14:32:32,313 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 14:32:32,314 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 14:32:32,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 14:32:32,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 14:32:32,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 14:32:32,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 14:32:32,319 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 14:32:32,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 14:32:32,320 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 14:32:32,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 14:32:32,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 14:32:32,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 14:32:32,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 14:32:32,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 14:32:32,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 14:32:32,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 14:32:32,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 14:32:32,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 14:32:32,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 14:32:32,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 14:32:32,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 14:32:32,326 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 14:32:32,342 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 14:32:32,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 14:32:32,342 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 14:32:32,343 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 14:32:32,343 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 14:32:32,343 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 14:32:32,344 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 14:32:32,344 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 14:32:32,344 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 14:32:32,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 14:32:32,345 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 14:32:32,345 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 14:32:32,345 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 14:32:32,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 14:32:32,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 14:32:32,346 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 14:32:32,346 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 14:32:32,346 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 14:32:32,346 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 14:32:32,346 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 14:32:32,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 14:32:32,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 14:32:32,347 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 14:32:32,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 14:32:32,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 14:32:32,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 14:32:32,348 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 14:32:32,348 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 14:32:32,348 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 14:32:32,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 14:32:32,349 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 14:32:32,349 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 14:32:32,349 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 14:32:32,349 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 14:32:32,349 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc94b11b9bf104a1982bd595975574e7febd0128133afbc196759ccbde82033d [2021-12-14 14:32:32,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 14:32:32,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 14:32:32,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 14:32:32,566 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 14:32:32,566 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 14:32:32,567 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec11_product23.cil.c [2021-12-14 14:32:32,608 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f370eda3/073cc77664864d0c9728004fc20ceec1/FLAGde4dfb3ba [2021-12-14 14:32:33,037 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 14:32:33,038 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec11_product23.cil.c [2021-12-14 14:32:33,054 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f370eda3/073cc77664864d0c9728004fc20ceec1/FLAGde4dfb3ba [2021-12-14 14:32:33,063 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f370eda3/073cc77664864d0c9728004fc20ceec1 [2021-12-14 14:32:33,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 14:32:33,066 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 14:32:33,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 14:32:33,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 14:32:33,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 14:32:33,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:32:33" (1/1) ... [2021-12-14 14:32:33,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@82983c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:33, skipping insertion in model container [2021-12-14 14:32:33,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:32:33" (1/1) ... [2021-12-14 14:32:33,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 14:32:33,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 14:32:33,403 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_spec11_product23.cil.c[40745,40758] [2021-12-14 14:32:33,483 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 14:32:33,491 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 14:32:33,554 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_spec11_product23.cil.c[40745,40758] [2021-12-14 14:32:33,575 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 14:32:33,597 INFO L208 MainTranslator]: Completed translation [2021-12-14 14:32:33,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:33 WrapperNode [2021-12-14 14:32:33,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 14:32:33,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 14:32:33,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 14:32:33,598 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 14:32:33,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:33" (1/1) ... [2021-12-14 14:32:33,637 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:33" (1/1) ... [2021-12-14 14:32:33,733 INFO L137 Inliner]: procedures = 130, calls = 217, calls flagged for inlining = 60, calls inlined = 53, statements flattened = 985 [2021-12-14 14:32:33,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 14:32:33,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 14:32:33,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 14:32:33,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 14:32:33,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:33" (1/1) ... [2021-12-14 14:32:33,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:33" (1/1) ... [2021-12-14 14:32:33,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:33" (1/1) ... [2021-12-14 14:32:33,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:33" (1/1) ... [2021-12-14 14:32:33,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:33" (1/1) ... [2021-12-14 14:32:33,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:33" (1/1) ... [2021-12-14 14:32:33,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:33" (1/1) ... [2021-12-14 14:32:33,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 14:32:33,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 14:32:33,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 14:32:33,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 14:32:33,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:33" (1/1) ... [2021-12-14 14:32:33,879 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 14:32:33,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:32:33,937 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) [2021-12-14 14:32:33,952 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 [2021-12-14 14:32:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-14 14:32:34,015 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-14 14:32:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-14 14:32:34,015 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-14 14:32:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-14 14:32:34,015 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-14 14:32:34,016 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2021-12-14 14:32:34,017 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2021-12-14 14:32:34,017 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-14 14:32:34,017 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-14 14:32:34,017 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-12-14 14:32:34,017 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-12-14 14:32:34,017 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-14 14:32:34,018 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-14 14:32:34,018 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-12-14 14:32:34,018 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-12-14 14:32:34,018 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-14 14:32:34,018 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-14 14:32:34,018 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-14 14:32:34,018 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-14 14:32:34,019 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-14 14:32:34,019 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-14 14:32:34,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-14 14:32:34,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 14:32:34,019 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-12-14 14:32:34,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-12-14 14:32:34,019 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-14 14:32:34,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-14 14:32:34,019 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-14 14:32:34,020 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-14 14:32:34,020 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-14 14:32:34,020 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-14 14:32:34,020 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-14 14:32:34,020 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-14 14:32:34,020 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-14 14:32:34,020 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-14 14:32:34,020 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-14 14:32:34,021 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-14 14:32:34,021 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-14 14:32:34,021 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-14 14:32:34,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 14:32:34,021 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-14 14:32:34,021 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-14 14:32:34,021 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-14 14:32:34,022 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-14 14:32:34,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 14:32:34,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 14:32:34,232 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 14:32:34,235 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 14:32:34,807 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 14:32:34,818 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 14:32:34,818 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 14:32:34,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:32:34 BoogieIcfgContainer [2021-12-14 14:32:34,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 14:32:34,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 14:32:34,823 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 14:32:34,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 14:32:34,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:32:33" (1/3) ... [2021-12-14 14:32:34,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17752583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:32:34, skipping insertion in model container [2021-12-14 14:32:34,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:33" (2/3) ... [2021-12-14 14:32:34,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17752583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:32:34, skipping insertion in model container [2021-12-14 14:32:34,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:32:34" (3/3) ... [2021-12-14 14:32:34,830 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec11_product23.cil.c [2021-12-14 14:32:34,836 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 14:32:34,837 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 14:32:34,881 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 14:32:34,888 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 [2021-12-14 14:32:34,889 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 14:32:34,920 INFO L276 IsEmpty]: Start isEmpty. Operand has 362 states, 289 states have (on average 1.5813148788927336) internal successors, (457), 292 states have internal predecessors, (457), 50 states have call successors, (50), 21 states have call predecessors, (50), 21 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2021-12-14 14:32:34,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-14 14:32:34,941 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:32:34,942 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:32:34,943 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:32:34,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:32:34,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1255563700, now seen corresponding path program 1 times [2021-12-14 14:32:34,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:32:34,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743634661] [2021-12-14 14:32:34,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:32:34,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:32:35,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:35,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:32:35,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:35,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:32:35,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:35,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:32:35,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:35,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 14:32:35,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:35,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 14:32:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:35,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 14:32:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:35,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 14:32:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:35,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 14:32:35,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:35,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-14 14:32:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:35,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 14:32:35,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:35,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 14:32:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:35,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-14 14:32:35,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:35,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-14 14:32:35,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:35,362 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-14 14:32:35,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:32:35,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743634661] [2021-12-14 14:32:35,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743634661] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:32:35,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74679636] [2021-12-14 14:32:35,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:32:35,364 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:32:35,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:32:35,384 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) [2021-12-14 14:32:35,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 14:32:35,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:35,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-14 14:32:35,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:32:35,808 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-12-14 14:32:35,809 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 14:32:35,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74679636] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:32:35,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 14:32:35,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-14 14:32:35,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597610830] [2021-12-14 14:32:35,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:32:35,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-14 14:32:35,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:32:35,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-14 14:32:35,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-14 14:32:35,847 INFO L87 Difference]: Start difference. First operand has 362 states, 289 states have (on average 1.5813148788927336) internal successors, (457), 292 states have internal predecessors, (457), 50 states have call successors, (50), 21 states have call predecessors, (50), 21 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 14:32:35,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:32:35,914 INFO L93 Difference]: Finished difference Result 531 states and 804 transitions. [2021-12-14 14:32:35,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-14 14:32:35,916 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 107 [2021-12-14 14:32:35,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:32:35,926 INFO L225 Difference]: With dead ends: 531 [2021-12-14 14:32:35,930 INFO L226 Difference]: Without dead ends: 355 [2021-12-14 14:32:35,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-14 14:32:35,936 INFO L933 BasicCegarLoop]: 553 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, 553 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 [2021-12-14 14:32:35,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 14:32:35,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2021-12-14 14:32:36,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2021-12-14 14:32:36,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 283 states have (on average 1.5759717314487633) internal successors, (446), 285 states have internal predecessors, (446), 50 states have call successors, (50), 21 states have call predecessors, (50), 21 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2021-12-14 14:32:36,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 545 transitions. [2021-12-14 14:32:36,017 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 545 transitions. Word has length 107 [2021-12-14 14:32:36,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:32:36,019 INFO L470 AbstractCegarLoop]: Abstraction has 355 states and 545 transitions. [2021-12-14 14:32:36,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 14:32:36,020 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 545 transitions. [2021-12-14 14:32:36,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-14 14:32:36,023 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:32:36,024 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:32:36,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-14 14:32:36,241 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 [2021-12-14 14:32:36,241 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:32:36,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:32:36,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1175451570, now seen corresponding path program 1 times [2021-12-14 14:32:36,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:32:36,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660176899] [2021-12-14 14:32:36,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:32:36,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:32:36,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:36,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:32:36,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:36,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:32:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:36,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:32:36,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:36,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 14:32:36,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:36,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 14:32:36,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:36,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 14:32:36,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:36,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-14 14:32:36,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:36,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 14:32:36,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:36,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 14:32:36,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:36,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 14:32:36,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:36,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 14:32:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:36,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 14:32:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:36,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-14 14:32:36,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:36,388 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-14 14:32:36,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:32:36,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660176899] [2021-12-14 14:32:36,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660176899] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:32:36,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745704282] [2021-12-14 14:32:36,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:32:36,390 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:32:36,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:32:36,391 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) [2021-12-14 14:32:36,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-14 14:32:36,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:36,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 1119 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 14:32:36,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:32:36,764 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-12-14 14:32:36,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 14:32:36,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745704282] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:32:36,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 14:32:36,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-14 14:32:36,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387192777] [2021-12-14 14:32:36,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:32:36,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 14:32:36,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:32:36,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 14:32:36,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-14 14:32:36,767 INFO L87 Difference]: Start difference. First operand 355 states and 545 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 14:32:36,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:32:36,792 INFO L93 Difference]: Finished difference Result 521 states and 782 transitions. [2021-12-14 14:32:36,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 14:32:36,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 108 [2021-12-14 14:32:36,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:32:36,795 INFO L225 Difference]: With dead ends: 521 [2021-12-14 14:32:36,795 INFO L226 Difference]: Without dead ends: 358 [2021-12-14 14:32:36,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-14 14:32:36,797 INFO L933 BasicCegarLoop]: 543 mSDtfsCounter, 1 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1084 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 [2021-12-14 14:32:36,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1084 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 14:32:36,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2021-12-14 14:32:36,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 357. [2021-12-14 14:32:36,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 285 states have (on average 1.5719298245614035) internal successors, (448), 287 states have internal predecessors, (448), 50 states have call successors, (50), 21 states have call predecessors, (50), 21 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2021-12-14 14:32:36,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 547 transitions. [2021-12-14 14:32:36,850 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 547 transitions. Word has length 108 [2021-12-14 14:32:36,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:32:36,851 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 547 transitions. [2021-12-14 14:32:36,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 14:32:36,851 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 547 transitions. [2021-12-14 14:32:36,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-14 14:32:36,863 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:32:36,864 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:32:36,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-14 14:32:37,081 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 [2021-12-14 14:32:37,081 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:32:37,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:32:37,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1108325951, now seen corresponding path program 1 times [2021-12-14 14:32:37,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:32:37,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715130071] [2021-12-14 14:32:37,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:32:37,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:32:37,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:37,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:32:37,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:37,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:32:37,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:37,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:32:37,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:37,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 14:32:37,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:37,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 14:32:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:37,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 14:32:37,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:37,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-14 14:32:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:37,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 14:32:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:37,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-14 14:32:37,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:37,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 14:32:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:37,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 14:32:37,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:37,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 14:32:37,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:37,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 14:32:37,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:37,243 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-14 14:32:37,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:32:37,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715130071] [2021-12-14 14:32:37,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715130071] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:32:37,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552971213] [2021-12-14 14:32:37,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:32:37,245 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:32:37,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:32:37,260 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) [2021-12-14 14:32:37,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-14 14:32:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:37,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 1146 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-14 14:32:37,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:32:37,691 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-12-14 14:32:37,692 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 14:32:37,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552971213] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:32:37,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 14:32:37,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-14 14:32:37,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396908345] [2021-12-14 14:32:37,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:32:37,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 14:32:37,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:32:37,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 14:32:37,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-14 14:32:37,694 INFO L87 Difference]: Start difference. First operand 357 states and 547 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 14:32:37,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:32:37,715 INFO L93 Difference]: Finished difference Result 762 states and 1186 transitions. [2021-12-14 14:32:37,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 14:32:37,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 117 [2021-12-14 14:32:37,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:32:37,719 INFO L225 Difference]: With dead ends: 762 [2021-12-14 14:32:37,719 INFO L226 Difference]: Without dead ends: 432 [2021-12-14 14:32:37,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-14 14:32:37,721 INFO L933 BasicCegarLoop]: 566 mSDtfsCounter, 134 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1065 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 [2021-12-14 14:32:37,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 1065 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 14:32:37,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2021-12-14 14:32:37,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 424. [2021-12-14 14:32:37,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 338 states have (on average 1.5887573964497042) internal successors, (537), 340 states have internal predecessors, (537), 64 states have call successors, (64), 21 states have call predecessors, (64), 21 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2021-12-14 14:32:37,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 664 transitions. [2021-12-14 14:32:37,739 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 664 transitions. Word has length 117 [2021-12-14 14:32:37,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:32:37,739 INFO L470 AbstractCegarLoop]: Abstraction has 424 states and 664 transitions. [2021-12-14 14:32:37,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 14:32:37,740 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 664 transitions. [2021-12-14 14:32:37,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-14 14:32:37,741 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:32:37,742 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:32:37,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-14 14:32:37,959 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 [2021-12-14 14:32:37,960 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:32:37,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:32:37,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1329257697, now seen corresponding path program 1 times [2021-12-14 14:32:37,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:32:37,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913623016] [2021-12-14 14:32:37,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:32:37,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:32:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:38,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:32:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:38,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:32:38,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:38,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:32:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:38,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 14:32:38,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:38,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 14:32:38,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:38,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 14:32:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:38,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 14:32:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:38,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-14 14:32:38,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:38,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 14:32:38,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:38,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-14 14:32:38,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:38,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 14:32:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:38,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-14 14:32:38,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:38,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 14:32:38,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:38,122 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-14 14:32:38,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:32:38,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913623016] [2021-12-14 14:32:38,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913623016] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:32:38,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821532736] [2021-12-14 14:32:38,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:32:38,125 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:32:38,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:32:38,126 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) [2021-12-14 14:32:38,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-14 14:32:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:38,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 1153 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-14 14:32:38,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:32:38,546 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-14 14:32:38,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 14:32:38,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821532736] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:32:38,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 14:32:38,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-14 14:32:38,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742023499] [2021-12-14 14:32:38,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:32:38,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 14:32:38,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:32:38,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 14:32:38,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-14 14:32:38,549 INFO L87 Difference]: Start difference. First operand 424 states and 664 transitions. Second operand has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-14 14:32:38,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:32:38,598 INFO L93 Difference]: Finished difference Result 839 states and 1318 transitions. [2021-12-14 14:32:38,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 14:32:38,599 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 118 [2021-12-14 14:32:38,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:32:38,602 INFO L225 Difference]: With dead ends: 839 [2021-12-14 14:32:38,602 INFO L226 Difference]: Without dead ends: 426 [2021-12-14 14:32:38,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:32:38,604 INFO L933 BasicCegarLoop]: 536 mSDtfsCounter, 152 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1970 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 [2021-12-14 14:32:38,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 1970 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 14:32:38,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2021-12-14 14:32:38,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2021-12-14 14:32:38,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 339 states have (on average 1.5870206489675516) internal successors, (538), 342 states have internal predecessors, (538), 64 states have call successors, (64), 21 states have call predecessors, (64), 22 states have return successors, (65), 62 states have call predecessors, (65), 63 states have call successors, (65) [2021-12-14 14:32:38,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 667 transitions. [2021-12-14 14:32:38,622 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 667 transitions. Word has length 118 [2021-12-14 14:32:38,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:32:38,622 INFO L470 AbstractCegarLoop]: Abstraction has 426 states and 667 transitions. [2021-12-14 14:32:38,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-14 14:32:38,623 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 667 transitions. [2021-12-14 14:32:38,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-14 14:32:38,624 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:32:38,625 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:32:38,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-14 14:32:38,843 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 [2021-12-14 14:32:38,844 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:32:38,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:32:38,849 INFO L85 PathProgramCache]: Analyzing trace with hash -135055949, now seen corresponding path program 1 times [2021-12-14 14:32:38,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:32:38,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575105307] [2021-12-14 14:32:38,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:32:38,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:32:38,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:38,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:32:38,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:38,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:32:38,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:38,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:32:38,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:38,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:32:38,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:39,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-14 14:32:39,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:39,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-14 14:32:39,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:39,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-14 14:32:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:39,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 14:32:39,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:39,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 14:32:39,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:39,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-14 14:32:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:39,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-14 14:32:39,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:39,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-14 14:32:39,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:39,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-14 14:32:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:39,048 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-14 14:32:39,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:32:39,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575105307] [2021-12-14 14:32:39,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575105307] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:32:39,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517380405] [2021-12-14 14:32:39,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:32:39,048 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:32:39,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:32:39,049 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) [2021-12-14 14:32:39,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-14 14:32:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:39,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 1154 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-14 14:32:39,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:32:39,437 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-14 14:32:39,438 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 14:32:39,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517380405] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:32:39,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 14:32:39,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-14 14:32:39,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574100104] [2021-12-14 14:32:39,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:32:39,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 14:32:39,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:32:39,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 14:32:39,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-14 14:32:39,440 INFO L87 Difference]: Start difference. First operand 426 states and 667 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-14 14:32:39,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:32:39,493 INFO L93 Difference]: Finished difference Result 841 states and 1323 transitions. [2021-12-14 14:32:39,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 14:32:39,494 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 119 [2021-12-14 14:32:39,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:32:39,496 INFO L225 Difference]: With dead ends: 841 [2021-12-14 14:32:39,496 INFO L226 Difference]: Without dead ends: 428 [2021-12-14 14:32:39,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-12-14 14:32:39,498 INFO L933 BasicCegarLoop]: 534 mSDtfsCounter, 151 mSDsluCounter, 1425 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1959 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 [2021-12-14 14:32:39,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 1959 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 14:32:39,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2021-12-14 14:32:39,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2021-12-14 14:32:39,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 340 states have (on average 1.5852941176470587) internal successors, (539), 344 states have internal predecessors, (539), 64 states have call successors, (64), 21 states have call predecessors, (64), 23 states have return successors, (70), 62 states have call predecessors, (70), 63 states have call successors, (70) [2021-12-14 14:32:39,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 673 transitions. [2021-12-14 14:32:39,516 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 673 transitions. Word has length 119 [2021-12-14 14:32:39,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:32:39,516 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 673 transitions. [2021-12-14 14:32:39,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-14 14:32:39,517 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 673 transitions. [2021-12-14 14:32:39,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-14 14:32:39,518 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:32:39,519 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:32:39,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-14 14:32:39,739 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 [2021-12-14 14:32:39,740 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:32:39,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:32:39,740 INFO L85 PathProgramCache]: Analyzing trace with hash -608679725, now seen corresponding path program 1 times [2021-12-14 14:32:39,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:32:39,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323503344] [2021-12-14 14:32:39,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:32:39,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:32:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:39,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:32:39,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:39,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:32:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:39,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:32:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:39,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:32:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:39,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:32:39,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:39,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 14:32:39,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:39,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-14 14:32:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:39,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-14 14:32:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:39,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 14:32:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:39,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 14:32:39,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:39,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 14:32:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:39,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-14 14:32:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:39,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 14:32:39,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:39,845 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-14 14:32:39,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:32:39,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323503344] [2021-12-14 14:32:39,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323503344] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:32:39,845 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:32:39,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 14:32:39,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121350199] [2021-12-14 14:32:39,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:32:39,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 14:32:39,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:32:39,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 14:32:39,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-14 14:32:39,847 INFO L87 Difference]: Start difference. First operand 428 states and 673 transitions. Second operand has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-14 14:32:41,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:32:41,216 INFO L93 Difference]: Finished difference Result 953 states and 1523 transitions. [2021-12-14 14:32:41,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 14:32:41,217 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 120 [2021-12-14 14:32:41,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:32:41,219 INFO L225 Difference]: With dead ends: 953 [2021-12-14 14:32:41,220 INFO L226 Difference]: Without dead ends: 548 [2021-12-14 14:32:41,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-14 14:32:41,221 INFO L933 BasicCegarLoop]: 613 mSDtfsCounter, 1333 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 1764 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1354 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 2198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 1764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-14 14:32:41,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1354 Valid, 1789 Invalid, 2198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 1764 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-14 14:32:41,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2021-12-14 14:32:41,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 428. [2021-12-14 14:32:41,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 340 states have (on average 1.5852941176470587) internal successors, (539), 344 states have internal predecessors, (539), 64 states have call successors, (64), 21 states have call predecessors, (64), 23 states have return successors, (69), 62 states have call predecessors, (69), 63 states have call successors, (69) [2021-12-14 14:32:41,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 672 transitions. [2021-12-14 14:32:41,243 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 672 transitions. Word has length 120 [2021-12-14 14:32:41,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:32:41,243 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 672 transitions. [2021-12-14 14:32:41,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-14 14:32:41,244 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 672 transitions. [2021-12-14 14:32:41,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-14 14:32:41,245 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:32:41,245 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:32:41,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 14:32:41,246 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:32:41,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:32:41,246 INFO L85 PathProgramCache]: Analyzing trace with hash 960683017, now seen corresponding path program 2 times [2021-12-14 14:32:41,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:32:41,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776445784] [2021-12-14 14:32:41,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:32:41,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:32:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:41,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:32:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:41,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:32:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:41,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:32:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:41,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:32:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:41,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:32:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:41,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-14 14:32:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:41,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 14:32:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:41,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 14:32:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:41,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-14 14:32:41,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:41,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 14:32:41,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:41,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 14:32:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:41,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 14:32:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:41,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 14:32:41,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:41,331 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-14 14:32:41,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:32:41,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776445784] [2021-12-14 14:32:41,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776445784] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:32:41,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:32:41,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 14:32:41,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461024311] [2021-12-14 14:32:41,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:32:41,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 14:32:41,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:32:41,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 14:32:41,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-14 14:32:41,334 INFO L87 Difference]: Start difference. First operand 428 states and 672 transitions. Second operand has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-14 14:32:42,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:32:42,560 INFO L93 Difference]: Finished difference Result 955 states and 1526 transitions. [2021-12-14 14:32:42,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 14:32:42,561 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 121 [2021-12-14 14:32:42,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:32:42,564 INFO L225 Difference]: With dead ends: 955 [2021-12-14 14:32:42,564 INFO L226 Difference]: Without dead ends: 550 [2021-12-14 14:32:42,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-14 14:32:42,566 INFO L933 BasicCegarLoop]: 618 mSDtfsCounter, 1323 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 1784 mSolverCounterSat, 428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1343 SdHoareTripleChecker+Valid, 1801 SdHoareTripleChecker+Invalid, 2212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 1784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-14 14:32:42,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1343 Valid, 1801 Invalid, 2212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [428 Valid, 1784 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-14 14:32:42,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2021-12-14 14:32:42,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 430. [2021-12-14 14:32:42,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 341 states have (on average 1.5835777126099706) internal successors, (540), 346 states have internal predecessors, (540), 64 states have call successors, (64), 21 states have call predecessors, (64), 24 states have return successors, (71), 62 states have call predecessors, (71), 63 states have call successors, (71) [2021-12-14 14:32:42,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 675 transitions. [2021-12-14 14:32:42,586 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 675 transitions. Word has length 121 [2021-12-14 14:32:42,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:32:42,587 INFO L470 AbstractCegarLoop]: Abstraction has 430 states and 675 transitions. [2021-12-14 14:32:42,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-14 14:32:42,587 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 675 transitions. [2021-12-14 14:32:42,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-14 14:32:42,588 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:32:42,589 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:32:42,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 14:32:42,589 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:32:42,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:32:42,589 INFO L85 PathProgramCache]: Analyzing trace with hash -382665554, now seen corresponding path program 1 times [2021-12-14 14:32:42,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:32:42,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758507325] [2021-12-14 14:32:42,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:32:42,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:32:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:42,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:32:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:42,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:32:42,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:42,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:32:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:42,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:32:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:42,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:32:42,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:42,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:32:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:42,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 14:32:42,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:42,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 14:32:42,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:42,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 14:32:42,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:42,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 14:32:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:42,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-14 14:32:42,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:42,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-14 14:32:42,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:42,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 14:32:42,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:42,726 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-14 14:32:42,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:32:42,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758507325] [2021-12-14 14:32:42,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758507325] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:32:42,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:32:42,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-14 14:32:42,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463171841] [2021-12-14 14:32:42,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:32:42,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-14 14:32:42,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:32:42,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-14 14:32:42,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-14 14:32:42,729 INFO L87 Difference]: Start difference. First operand 430 states and 675 transitions. Second operand has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2021-12-14 14:32:44,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:32:44,537 INFO L93 Difference]: Finished difference Result 953 states and 1521 transitions. [2021-12-14 14:32:44,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-14 14:32:44,538 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 122 [2021-12-14 14:32:44,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:32:44,540 INFO L225 Difference]: With dead ends: 953 [2021-12-14 14:32:44,541 INFO L226 Difference]: Without dead ends: 550 [2021-12-14 14:32:44,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-14 14:32:44,543 INFO L933 BasicCegarLoop]: 602 mSDtfsCounter, 1464 mSDsluCounter, 1698 mSDsCounter, 0 mSdLazyCounter, 3207 mSolverCounterSat, 493 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 2300 SdHoareTripleChecker+Invalid, 3700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 493 IncrementalHoareTripleChecker+Valid, 3207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-14 14:32:44,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1464 Valid, 2300 Invalid, 3700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [493 Valid, 3207 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-14 14:32:44,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2021-12-14 14:32:44,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 430. [2021-12-14 14:32:44,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 341 states have (on average 1.5835777126099706) internal successors, (540), 346 states have internal predecessors, (540), 64 states have call successors, (64), 21 states have call predecessors, (64), 24 states have return successors, (70), 62 states have call predecessors, (70), 63 states have call successors, (70) [2021-12-14 14:32:44,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 674 transitions. [2021-12-14 14:32:44,563 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 674 transitions. Word has length 122 [2021-12-14 14:32:44,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:32:44,563 INFO L470 AbstractCegarLoop]: Abstraction has 430 states and 674 transitions. [2021-12-14 14:32:44,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2021-12-14 14:32:44,564 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 674 transitions. [2021-12-14 14:32:44,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-14 14:32:44,566 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:32:44,566 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:32:44,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-14 14:32:44,566 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:32:44,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:32:44,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1142899834, now seen corresponding path program 2 times [2021-12-14 14:32:44,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:32:44,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399884488] [2021-12-14 14:32:44,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:32:44,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:32:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:44,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:32:44,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:44,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:32:44,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:44,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:32:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:44,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:32:44,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:44,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:32:44,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:44,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:32:44,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:44,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-14 14:32:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:44,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 14:32:44,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:44,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-14 14:32:44,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:44,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 14:32:44,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:44,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 14:32:44,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:44,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 14:32:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:44,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-14 14:32:44,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:44,684 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-14 14:32:44,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:32:44,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399884488] [2021-12-14 14:32:44,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399884488] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:32:44,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:32:44,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-14 14:32:44,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736245862] [2021-12-14 14:32:44,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:32:44,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-14 14:32:44,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:32:44,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-14 14:32:44,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-14 14:32:44,686 INFO L87 Difference]: Start difference. First operand 430 states and 674 transitions. Second operand has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2021-12-14 14:32:46,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:32:46,495 INFO L93 Difference]: Finished difference Result 955 states and 1527 transitions. [2021-12-14 14:32:46,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-14 14:32:46,495 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 123 [2021-12-14 14:32:46,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:32:46,498 INFO L225 Difference]: With dead ends: 955 [2021-12-14 14:32:46,498 INFO L226 Difference]: Without dead ends: 552 [2021-12-14 14:32:46,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-14 14:32:46,502 INFO L933 BasicCegarLoop]: 604 mSDtfsCounter, 1457 mSDsluCounter, 1698 mSDsCounter, 0 mSdLazyCounter, 3266 mSolverCounterSat, 481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1457 SdHoareTripleChecker+Valid, 2302 SdHoareTripleChecker+Invalid, 3747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 3266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-14 14:32:46,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1457 Valid, 2302 Invalid, 3747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 3266 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-14 14:32:46,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2021-12-14 14:32:46,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 432. [2021-12-14 14:32:46,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 342 states have (on average 1.5818713450292399) internal successors, (541), 348 states have internal predecessors, (541), 64 states have call successors, (64), 21 states have call predecessors, (64), 25 states have return successors, (75), 62 states have call predecessors, (75), 63 states have call successors, (75) [2021-12-14 14:32:46,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 680 transitions. [2021-12-14 14:32:46,530 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 680 transitions. Word has length 123 [2021-12-14 14:32:46,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:32:46,531 INFO L470 AbstractCegarLoop]: Abstraction has 432 states and 680 transitions. [2021-12-14 14:32:46,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2021-12-14 14:32:46,531 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 680 transitions. [2021-12-14 14:32:46,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-14 14:32:46,533 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:32:46,533 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:32:46,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-14 14:32:46,534 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:32:46,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:32:46,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1796614903, now seen corresponding path program 1 times [2021-12-14 14:32:46,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:32:46,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32828248] [2021-12-14 14:32:46,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:32:46,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:32:46,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:46,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:32:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:46,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:32:46,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:46,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:32:46,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:46,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:32:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:46,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:32:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:46,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:32:46,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:46,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 14:32:46,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:46,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 14:32:46,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:46,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 14:32:46,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:46,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 14:32:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:46,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-14 14:32:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:46,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-14 14:32:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:46,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-14 14:32:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:46,656 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-14 14:32:46,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:32:46,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32828248] [2021-12-14 14:32:46,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32828248] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:32:46,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911184432] [2021-12-14 14:32:46,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:32:46,657 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:32:46,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:32:46,658 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) [2021-12-14 14:32:46,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-14 14:32:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:46,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 1159 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-14 14:32:46,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:32:47,029 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-14 14:32:47,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 14:32:47,225 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-14 14:32:47,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911184432] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 14:32:47,225 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 14:32:47,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2021-12-14 14:32:47,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291034249] [2021-12-14 14:32:47,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 14:32:47,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-14 14:32:47,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:32:47,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-14 14:32:47,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-12-14 14:32:47,227 INFO L87 Difference]: Start difference. First operand 432 states and 680 transitions. Second operand has 15 states, 14 states have (on average 9.5) internal successors, (133), 11 states have internal predecessors, (133), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2021-12-14 14:32:49,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:32:49,917 INFO L93 Difference]: Finished difference Result 1814 states and 3085 transitions. [2021-12-14 14:32:49,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-14 14:32:49,918 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.5) internal successors, (133), 11 states have internal predecessors, (133), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 124 [2021-12-14 14:32:49,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:32:49,925 INFO L225 Difference]: With dead ends: 1814 [2021-12-14 14:32:49,926 INFO L226 Difference]: Without dead ends: 1413 [2021-12-14 14:32:49,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2021-12-14 14:32:49,928 INFO L933 BasicCegarLoop]: 832 mSDtfsCounter, 4338 mSDsluCounter, 3662 mSDsCounter, 0 mSdLazyCounter, 4913 mSolverCounterSat, 1474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4340 SdHoareTripleChecker+Valid, 4494 SdHoareTripleChecker+Invalid, 6387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1474 IncrementalHoareTripleChecker+Valid, 4913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-14 14:32:49,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4340 Valid, 4494 Invalid, 6387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1474 Valid, 4913 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-14 14:32:49,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1413 states. [2021-12-14 14:32:49,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1413 to 850. [2021-12-14 14:32:49,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 681 states have (on average 1.6255506607929515) internal successors, (1107), 687 states have internal predecessors, (1107), 143 states have call successors, (143), 21 states have call predecessors, (143), 25 states have return successors, (164), 141 states have call predecessors, (164), 142 states have call successors, (164) [2021-12-14 14:32:49,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1414 transitions. [2021-12-14 14:32:49,969 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1414 transitions. Word has length 124 [2021-12-14 14:32:49,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:32:49,969 INFO L470 AbstractCegarLoop]: Abstraction has 850 states and 1414 transitions. [2021-12-14 14:32:49,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.5) internal successors, (133), 11 states have internal predecessors, (133), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2021-12-14 14:32:49,969 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1414 transitions. [2021-12-14 14:32:49,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-14 14:32:49,972 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:32:49,972 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:32:49,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-14 14:32:50,193 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 [2021-12-14 14:32:50,193 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:32:50,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:32:50,193 INFO L85 PathProgramCache]: Analyzing trace with hash -157305458, now seen corresponding path program 1 times [2021-12-14 14:32:50,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:32:50,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574713979] [2021-12-14 14:32:50,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:32:50,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:32:50,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:50,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:32:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:50,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:32:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:50,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:32:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:50,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:32:50,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:50,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:32:50,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:50,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:32:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:50,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 14:32:50,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:50,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-14 14:32:50,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:50,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-14 14:32:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:50,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 14:32:50,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:50,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 14:32:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:50,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-14 14:32:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:50,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 14:32:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:50,282 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-14 14:32:50,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:32:50,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574713979] [2021-12-14 14:32:50,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574713979] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:32:50,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:32:50,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:32:50,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045709475] [2021-12-14 14:32:50,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:32:50,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:32:50,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:32:50,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:32:50,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:32:50,285 INFO L87 Difference]: Start difference. First operand 850 states and 1414 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 14:32:51,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:32:51,293 INFO L93 Difference]: Finished difference Result 2140 states and 3653 transitions. [2021-12-14 14:32:51,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:32:51,294 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2021-12-14 14:32:51,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:32:51,319 INFO L225 Difference]: With dead ends: 2140 [2021-12-14 14:32:51,322 INFO L226 Difference]: Without dead ends: 1368 [2021-12-14 14:32:51,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:32:51,343 INFO L933 BasicCegarLoop]: 660 mSDtfsCounter, 1320 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 937 mSolverCounterSat, 485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1339 SdHoareTripleChecker+Valid, 1554 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-14 14:32:51,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1339 Valid, 1554 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [485 Valid, 937 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-14 14:32:51,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2021-12-14 14:32:51,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 1240. [2021-12-14 14:32:51,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1240 states, 992 states have (on average 1.6401209677419355) internal successors, (1627), 998 states have internal predecessors, (1627), 222 states have call successors, (222), 21 states have call predecessors, (222), 25 states have return successors, (253), 220 states have call predecessors, (253), 221 states have call successors, (253) [2021-12-14 14:32:51,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1240 states to 1240 states and 2102 transitions. [2021-12-14 14:32:51,415 INFO L78 Accepts]: Start accepts. Automaton has 1240 states and 2102 transitions. Word has length 127 [2021-12-14 14:32:51,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:32:51,415 INFO L470 AbstractCegarLoop]: Abstraction has 1240 states and 2102 transitions. [2021-12-14 14:32:51,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 14:32:51,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1240 states and 2102 transitions. [2021-12-14 14:32:51,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-14 14:32:51,440 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:32:51,440 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:32:51,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-14 14:32:51,441 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:32:51,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:32:51,441 INFO L85 PathProgramCache]: Analyzing trace with hash 423141509, now seen corresponding path program 1 times [2021-12-14 14:32:51,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:32:51,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553112539] [2021-12-14 14:32:51,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:32:51,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:32:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:51,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:32:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:51,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:32:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:51,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:32:51,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:51,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:32:51,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:51,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:32:51,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:51,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:32:51,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:51,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 14:32:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:51,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 14:32:51,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:51,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 14:32:51,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:51,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-14 14:32:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:51,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-14 14:32:51,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:51,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-14 14:32:51,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:51,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-14 14:32:51,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:51,534 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-14 14:32:51,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:32:51,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553112539] [2021-12-14 14:32:51,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553112539] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:32:51,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:32:51,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:32:51,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379613761] [2021-12-14 14:32:51,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:32:51,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:32:51,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:32:51,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:32:51,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:32:51,536 INFO L87 Difference]: Start difference. First operand 1240 states and 2102 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 14:32:52,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:32:52,630 INFO L93 Difference]: Finished difference Result 3114 states and 5362 transitions. [2021-12-14 14:32:52,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:32:52,631 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 128 [2021-12-14 14:32:52,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:32:52,644 INFO L225 Difference]: With dead ends: 3114 [2021-12-14 14:32:52,654 INFO L226 Difference]: Without dead ends: 2005 [2021-12-14 14:32:52,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:32:52,658 INFO L933 BasicCegarLoop]: 642 mSDtfsCounter, 1321 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1340 SdHoareTripleChecker+Valid, 1492 SdHoareTripleChecker+Invalid, 1417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-14 14:32:52,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1340 Valid, 1492 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-14 14:32:52,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2005 states. [2021-12-14 14:32:52,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2005 to 1877. [2021-12-14 14:32:52,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1510 states have (on average 1.6456953642384107) internal successors, (2485), 1516 states have internal predecessors, (2485), 341 states have call successors, (341), 21 states have call predecessors, (341), 25 states have return successors, (372), 339 states have call predecessors, (372), 340 states have call successors, (372) [2021-12-14 14:32:52,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 3198 transitions. [2021-12-14 14:32:52,742 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 3198 transitions. Word has length 128 [2021-12-14 14:32:52,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:32:52,742 INFO L470 AbstractCegarLoop]: Abstraction has 1877 states and 3198 transitions. [2021-12-14 14:32:52,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 14:32:52,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 3198 transitions. [2021-12-14 14:32:52,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-14 14:32:52,752 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:32:52,752 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:32:52,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-14 14:32:52,753 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:32:52,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:32:52,753 INFO L85 PathProgramCache]: Analyzing trace with hash 411797052, now seen corresponding path program 1 times [2021-12-14 14:32:52,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:32:52,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433296814] [2021-12-14 14:32:52,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:32:52,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:32:52,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:52,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:32:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:52,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:32:52,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:52,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:32:52,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:52,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:32:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:52,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:32:52,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:52,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:32:52,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:52,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 14:32:52,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:52,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 14:32:52,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:52,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-14 14:32:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:52,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 14:32:52,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:52,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 14:32:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:52,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 14:32:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:52,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 14:32:52,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:52,839 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-14 14:32:52,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:32:52,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433296814] [2021-12-14 14:32:52,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433296814] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:32:52,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:32:52,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:32:52,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033619393] [2021-12-14 14:32:52,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:32:52,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:32:52,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:32:52,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:32:52,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:32:52,841 INFO L87 Difference]: Start difference. First operand 1877 states and 3198 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 14:32:53,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:32:53,902 INFO L93 Difference]: Finished difference Result 4594 states and 7973 transitions. [2021-12-14 14:32:53,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:32:53,903 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 129 [2021-12-14 14:32:53,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:32:53,916 INFO L225 Difference]: With dead ends: 4594 [2021-12-14 14:32:53,916 INFO L226 Difference]: Without dead ends: 2983 [2021-12-14 14:32:53,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:32:53,923 INFO L933 BasicCegarLoop]: 645 mSDtfsCounter, 1314 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 482 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1332 SdHoareTripleChecker+Valid, 1498 SdHoareTripleChecker+Invalid, 1410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 482 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-14 14:32:53,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1332 Valid, 1498 Invalid, 1410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [482 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-14 14:32:53,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2021-12-14 14:32:54,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 2855. [2021-12-14 14:32:54,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2855 states, 2326 states have (on average 1.6504729148753225) internal successors, (3839), 2332 states have internal predecessors, (3839), 503 states have call successors, (503), 21 states have call predecessors, (503), 25 states have return successors, (550), 501 states have call predecessors, (550), 502 states have call successors, (550) [2021-12-14 14:32:54,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 4892 transitions. [2021-12-14 14:32:54,068 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 4892 transitions. Word has length 129 [2021-12-14 14:32:54,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:32:54,068 INFO L470 AbstractCegarLoop]: Abstraction has 2855 states and 4892 transitions. [2021-12-14 14:32:54,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 14:32:54,068 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 4892 transitions. [2021-12-14 14:32:54,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-14 14:32:54,077 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:32:54,078 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:32:54,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-14 14:32:54,078 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:32:54,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:32:54,078 INFO L85 PathProgramCache]: Analyzing trace with hash 2006981830, now seen corresponding path program 1 times [2021-12-14 14:32:54,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:32:54,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823169267] [2021-12-14 14:32:54,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:32:54,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:32:54,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:54,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:32:54,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:54,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:32:54,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:54,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:32:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:54,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:32:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:54,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:32:54,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:54,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:32:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:54,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 14:32:54,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:54,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-14 14:32:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:54,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-14 14:32:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:54,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-14 14:32:54,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:54,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-14 14:32:54,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:54,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 14:32:54,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:54,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-14 14:32:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:54,148 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-14 14:32:54,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:32:54,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823169267] [2021-12-14 14:32:54,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823169267] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:32:54,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:32:54,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:32:54,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335714664] [2021-12-14 14:32:54,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:32:54,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:32:54,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:32:54,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:32:54,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:32:54,150 INFO L87 Difference]: Start difference. First operand 2855 states and 4892 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 14:32:55,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:32:55,177 INFO L93 Difference]: Finished difference Result 6933 states and 12108 transitions. [2021-12-14 14:32:55,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:32:55,178 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 130 [2021-12-14 14:32:55,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:32:55,232 INFO L225 Difference]: With dead ends: 6933 [2021-12-14 14:32:55,232 INFO L226 Difference]: Without dead ends: 4563 [2021-12-14 14:32:55,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:32:55,240 INFO L933 BasicCegarLoop]: 644 mSDtfsCounter, 1315 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1333 SdHoareTripleChecker+Valid, 1498 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-14 14:32:55,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1333 Valid, 1498 Invalid, 1414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-14 14:32:55,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4563 states. [2021-12-14 14:32:55,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4563 to 4435. [2021-12-14 14:32:55,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4435 states, 3661 states have (on average 1.6539196940726577) internal successors, (6055), 3667 states have internal predecessors, (6055), 748 states have call successors, (748), 21 states have call predecessors, (748), 25 states have return successors, (821), 746 states have call predecessors, (821), 747 states have call successors, (821) [2021-12-14 14:32:55,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4435 states to 4435 states and 7624 transitions. [2021-12-14 14:32:55,515 INFO L78 Accepts]: Start accepts. Automaton has 4435 states and 7624 transitions. Word has length 130 [2021-12-14 14:32:55,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:32:55,515 INFO L470 AbstractCegarLoop]: Abstraction has 4435 states and 7624 transitions. [2021-12-14 14:32:55,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 14:32:55,516 INFO L276 IsEmpty]: Start isEmpty. Operand 4435 states and 7624 transitions. [2021-12-14 14:32:55,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-14 14:32:55,527 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:32:55,527 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:32:55,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-14 14:32:55,527 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:32:55,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:32:55,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1497038696, now seen corresponding path program 1 times [2021-12-14 14:32:55,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:32:55,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263685147] [2021-12-14 14:32:55,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:32:55,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:32:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:55,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:32:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:55,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:32:55,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:55,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:32:55,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:55,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:32:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:55,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:32:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:55,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:32:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:55,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-14 14:32:55,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:55,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 14:32:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:55,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 14:32:55,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:55,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-14 14:32:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:55,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 14:32:55,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:55,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-14 14:32:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:55,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 14:32:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:55,614 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-14 14:32:55,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:32:55,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263685147] [2021-12-14 14:32:55,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263685147] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:32:55,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:32:55,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:32:55,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924252223] [2021-12-14 14:32:55,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:32:55,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:32:55,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:32:55,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:32:55,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:32:55,617 INFO L87 Difference]: Start difference. First operand 4435 states and 7624 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 14:32:56,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:32:56,607 INFO L93 Difference]: Finished difference Result 11104 states and 19437 transitions. [2021-12-14 14:32:56,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:32:56,608 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 131 [2021-12-14 14:32:56,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:32:56,649 INFO L225 Difference]: With dead ends: 11104 [2021-12-14 14:32:56,649 INFO L226 Difference]: Without dead ends: 7406 [2021-12-14 14:32:56,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:32:56,659 INFO L933 BasicCegarLoop]: 661 mSDtfsCounter, 1313 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 492 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1331 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 1433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 492 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-14 14:32:56,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1331 Valid, 1569 Invalid, 1433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [492 Valid, 941 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-14 14:32:56,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7406 states. [2021-12-14 14:32:56,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7406 to 7278. [2021-12-14 14:32:57,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7278 states, 6011 states have (on average 1.6493095990683746) internal successors, (9914), 6017 states have internal predecessors, (9914), 1241 states have call successors, (1241), 21 states have call predecessors, (1241), 25 states have return successors, (1358), 1239 states have call predecessors, (1358), 1240 states have call successors, (1358) [2021-12-14 14:32:57,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7278 states to 7278 states and 12513 transitions. [2021-12-14 14:32:57,029 INFO L78 Accepts]: Start accepts. Automaton has 7278 states and 12513 transitions. Word has length 131 [2021-12-14 14:32:57,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:32:57,029 INFO L470 AbstractCegarLoop]: Abstraction has 7278 states and 12513 transitions. [2021-12-14 14:32:57,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 14:32:57,030 INFO L276 IsEmpty]: Start isEmpty. Operand 7278 states and 12513 transitions. [2021-12-14 14:32:57,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-12-14 14:32:57,049 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:32:57,049 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:32:57,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-14 14:32:57,050 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:32:57,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:32:57,050 INFO L85 PathProgramCache]: Analyzing trace with hash -2100405654, now seen corresponding path program 1 times [2021-12-14 14:32:57,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:32:57,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058590451] [2021-12-14 14:32:57,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:32:57,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:32:57,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:57,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:32:57,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:57,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:32:57,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:57,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:32:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:57,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:32:57,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:57,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:32:57,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:57,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:32:57,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:57,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-14 14:32:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:57,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 14:32:57,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:57,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 14:32:57,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:57,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-14 14:32:57,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:57,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 14:32:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:57,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 14:32:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:57,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-14 14:32:57,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:57,120 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-14 14:32:57,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:32:57,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058590451] [2021-12-14 14:32:57,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058590451] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:32:57,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:32:57,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:32:57,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543652932] [2021-12-14 14:32:57,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:32:57,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:32:57,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:32:57,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:32:57,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:32:57,122 INFO L87 Difference]: Start difference. First operand 7278 states and 12513 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 14:32:58,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:32:58,526 INFO L93 Difference]: Finished difference Result 18524 states and 32401 transitions. [2021-12-14 14:32:58,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:32:58,527 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 132 [2021-12-14 14:32:58,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:32:58,566 INFO L225 Difference]: With dead ends: 18524 [2021-12-14 14:32:58,567 INFO L226 Difference]: Without dead ends: 12385 [2021-12-14 14:32:58,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:32:58,587 INFO L933 BasicCegarLoop]: 646 mSDtfsCounter, 1310 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 927 mSolverCounterSat, 489 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 489 IncrementalHoareTripleChecker+Valid, 927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-14 14:32:58,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1329 Valid, 1503 Invalid, 1416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [489 Valid, 927 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-14 14:32:58,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12385 states. [2021-12-14 14:32:59,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12385 to 12257. [2021-12-14 14:32:59,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12257 states, 10168 states have (on average 1.6488001573564122) internal successors, (16765), 10174 states have internal predecessors, (16765), 2063 states have call successors, (2063), 21 states have call predecessors, (2063), 25 states have return successors, (2258), 2061 states have call predecessors, (2258), 2062 states have call successors, (2258) [2021-12-14 14:32:59,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12257 states to 12257 states and 21086 transitions. [2021-12-14 14:32:59,134 INFO L78 Accepts]: Start accepts. Automaton has 12257 states and 21086 transitions. Word has length 132 [2021-12-14 14:32:59,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:32:59,134 INFO L470 AbstractCegarLoop]: Abstraction has 12257 states and 21086 transitions. [2021-12-14 14:32:59,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 14:32:59,134 INFO L276 IsEmpty]: Start isEmpty. Operand 12257 states and 21086 transitions. [2021-12-14 14:32:59,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-14 14:32:59,169 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:32:59,169 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:32:59,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-14 14:32:59,170 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:32:59,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:32:59,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1293666502, now seen corresponding path program 1 times [2021-12-14 14:32:59,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:32:59,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807727684] [2021-12-14 14:32:59,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:32:59,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:32:59,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:59,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:32:59,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:59,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:32:59,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:59,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:32:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:59,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:32:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:59,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:32:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:59,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:32:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:59,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 14:32:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:59,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 14:32:59,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:59,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 14:32:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:59,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 14:32:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:59,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-14 14:32:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:59,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 14:32:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:59,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-14 14:32:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:32:59,248 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-14 14:32:59,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:32:59,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807727684] [2021-12-14 14:32:59,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807727684] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:32:59,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:32:59,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:32:59,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909124540] [2021-12-14 14:32:59,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:32:59,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:32:59,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:32:59,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:32:59,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:32:59,251 INFO L87 Difference]: Start difference. First operand 12257 states and 21086 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 14:33:01,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:33:01,074 INFO L93 Difference]: Finished difference Result 29482 states and 51261 transitions. [2021-12-14 14:33:01,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:33:01,075 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 133 [2021-12-14 14:33:01,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:33:01,225 INFO L225 Difference]: With dead ends: 29482 [2021-12-14 14:33:01,225 INFO L226 Difference]: Without dead ends: 19338 [2021-12-14 14:33:01,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:33:01,248 INFO L933 BasicCegarLoop]: 642 mSDtfsCounter, 1308 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 487 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 1466 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 487 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-14 14:33:01,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1327 Valid, 1466 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [487 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-14 14:33:01,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19338 states. [2021-12-14 14:33:02,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19338 to 19210. [2021-12-14 14:33:02,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19210 states, 15918 states have (on average 1.62300540268878) internal successors, (25835), 15924 states have internal predecessors, (25835), 3266 states have call successors, (3266), 21 states have call predecessors, (3266), 25 states have return successors, (3605), 3264 states have call predecessors, (3605), 3265 states have call successors, (3605) [2021-12-14 14:33:02,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19210 states to 19210 states and 32706 transitions. [2021-12-14 14:33:02,085 INFO L78 Accepts]: Start accepts. Automaton has 19210 states and 32706 transitions. Word has length 133 [2021-12-14 14:33:02,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:33:02,085 INFO L470 AbstractCegarLoop]: Abstraction has 19210 states and 32706 transitions. [2021-12-14 14:33:02,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 14:33:02,085 INFO L276 IsEmpty]: Start isEmpty. Operand 19210 states and 32706 transitions. [2021-12-14 14:33:02,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-14 14:33:02,109 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:33:02,109 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:33:02,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-14 14:33:02,109 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:33:02,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:33:02,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1748463029, now seen corresponding path program 1 times [2021-12-14 14:33:02,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:33:02,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314118353] [2021-12-14 14:33:02,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:33:02,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:33:02,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:02,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:33:02,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:02,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:33:02,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:02,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:33:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:02,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:33:02,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:02,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:33:02,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:02,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:33:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:02,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 14:33:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:02,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-14 14:33:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:02,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 14:33:02,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:02,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-14 14:33:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:02,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-14 14:33:02,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:02,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 14:33:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:02,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 14:33:02,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:02,193 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-14 14:33:02,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:33:02,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314118353] [2021-12-14 14:33:02,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314118353] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:33:02,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:33:02,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:33:02,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890560168] [2021-12-14 14:33:02,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:33:02,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:33:02,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:33:02,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:33:02,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:33:02,195 INFO L87 Difference]: Start difference. First operand 19210 states and 32706 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 14:33:04,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:33:04,537 INFO L93 Difference]: Finished difference Result 50914 states and 88179 transitions. [2021-12-14 14:33:04,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:33:04,538 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 134 [2021-12-14 14:33:04,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:33:04,659 INFO L225 Difference]: With dead ends: 50914 [2021-12-14 14:33:04,660 INFO L226 Difference]: Without dead ends: 34459 [2021-12-14 14:33:04,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:33:04,701 INFO L933 BasicCegarLoop]: 648 mSDtfsCounter, 1304 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 493 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 1505 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 493 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-14 14:33:04,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1322 Valid, 1505 Invalid, 1423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [493 Valid, 930 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-14 14:33:04,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34459 states. [2021-12-14 14:33:06,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34459 to 34331. [2021-12-14 14:33:06,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34331 states, 28589 states have (on average 1.6195389835251321) internal successors, (46301), 28595 states have internal predecessors, (46301), 5716 states have call successors, (5716), 21 states have call predecessors, (5716), 25 states have return successors, (6329), 5714 states have call predecessors, (6329), 5715 states have call successors, (6329) [2021-12-14 14:33:06,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34331 states to 34331 states and 58346 transitions. [2021-12-14 14:33:06,424 INFO L78 Accepts]: Start accepts. Automaton has 34331 states and 58346 transitions. Word has length 134 [2021-12-14 14:33:06,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:33:06,424 INFO L470 AbstractCegarLoop]: Abstraction has 34331 states and 58346 transitions. [2021-12-14 14:33:06,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 14:33:06,425 INFO L276 IsEmpty]: Start isEmpty. Operand 34331 states and 58346 transitions. [2021-12-14 14:33:06,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-14 14:33:06,454 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:33:06,454 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:33:06,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-14 14:33:06,454 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:33:06,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:33:06,455 INFO L85 PathProgramCache]: Analyzing trace with hash -175488780, now seen corresponding path program 1 times [2021-12-14 14:33:06,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:33:06,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303594103] [2021-12-14 14:33:06,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:33:06,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:33:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:06,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:33:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:06,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:33:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:06,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:33:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:06,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:33:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:06,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:33:06,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:06,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:33:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:06,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-14 14:33:06,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:06,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 14:33:06,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:06,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 14:33:06,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:06,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 14:33:06,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:06,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 14:33:06,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:06,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-14 14:33:06,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:06,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-14 14:33:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:06,545 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-14 14:33:06,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:33:06,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303594103] [2021-12-14 14:33:06,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303594103] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:33:06,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:33:06,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:33:06,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721298816] [2021-12-14 14:33:06,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:33:06,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:33:06,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:33:06,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:33:06,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:33:06,548 INFO L87 Difference]: Start difference. First operand 34331 states and 58346 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 14:33:09,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:33:09,790 INFO L93 Difference]: Finished difference Result 93786 states and 161578 transitions. [2021-12-14 14:33:09,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:33:09,791 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 135 [2021-12-14 14:33:09,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:33:09,994 INFO L225 Difference]: With dead ends: 93786 [2021-12-14 14:33:09,994 INFO L226 Difference]: Without dead ends: 63126 [2021-12-14 14:33:10,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:33:10,056 INFO L933 BasicCegarLoop]: 647 mSDtfsCounter, 1305 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 493 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 1425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 493 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-14 14:33:10,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1323 Valid, 1508 Invalid, 1425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [493 Valid, 932 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-14 14:33:10,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63126 states. [2021-12-14 14:33:12,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63126 to 62998. [2021-12-14 14:33:13,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62998 states, 52743 states have (on average 1.6151148019642416) internal successors, (85186), 52749 states have internal predecessors, (85186), 10229 states have call successors, (10229), 21 states have call predecessors, (10229), 25 states have return successors, (11374), 10227 states have call predecessors, (11374), 10228 states have call successors, (11374) [2021-12-14 14:33:13,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62998 states to 62998 states and 106789 transitions. [2021-12-14 14:33:13,464 INFO L78 Accepts]: Start accepts. Automaton has 62998 states and 106789 transitions. Word has length 135 [2021-12-14 14:33:13,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:33:13,465 INFO L470 AbstractCegarLoop]: Abstraction has 62998 states and 106789 transitions. [2021-12-14 14:33:13,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 14:33:13,465 INFO L276 IsEmpty]: Start isEmpty. Operand 62998 states and 106789 transitions. [2021-12-14 14:33:13,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-12-14 14:33:13,498 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:33:13,498 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:33:13,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-14 14:33:13,499 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:33:13,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:33:13,499 INFO L85 PathProgramCache]: Analyzing trace with hash -476344885, now seen corresponding path program 1 times [2021-12-14 14:33:13,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:33:13,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714868041] [2021-12-14 14:33:13,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:33:13,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:33:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:13,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:33:13,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:13,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:33:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:13,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:33:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:13,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:33:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:13,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:33:13,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:13,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:33:13,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:13,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 14:33:13,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:13,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-14 14:33:13,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:13,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-14 14:33:13,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:13,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-14 14:33:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:13,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 14:33:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:13,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-14 14:33:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:13,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-14 14:33:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:13,562 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-14 14:33:13,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:33:13,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714868041] [2021-12-14 14:33:13,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714868041] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:33:13,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:33:13,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:33:13,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667676762] [2021-12-14 14:33:13,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:33:13,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:33:13,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:33:13,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:33:13,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:33:13,564 INFO L87 Difference]: Start difference. First operand 62998 states and 106789 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 14:33:18,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:33:18,288 INFO L93 Difference]: Finished difference Result 118162 states and 203955 transitions. [2021-12-14 14:33:18,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:33:18,288 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 136 [2021-12-14 14:33:18,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:33:18,710 INFO L225 Difference]: With dead ends: 118162 [2021-12-14 14:33:18,710 INFO L226 Difference]: Without dead ends: 117999 [2021-12-14 14:33:18,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:33:18,754 INFO L933 BasicCegarLoop]: 648 mSDtfsCounter, 1300 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 495 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1318 SdHoareTripleChecker+Valid, 1505 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 495 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-14 14:33:18,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1318 Valid, 1505 Invalid, 1423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [495 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-14 14:33:18,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117999 states. [2021-12-14 14:33:23,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117999 to 117871. [2021-12-14 14:33:23,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117871 states, 99248 states have (on average 1.6096445268418507) internal successors, (159754), 99254 states have internal predecessors, (159754), 18597 states have call successors, (18597), 21 states have call predecessors, (18597), 25 states have return successors, (20788), 18595 states have call predecessors, (20788), 18596 states have call successors, (20788) [2021-12-14 14:33:24,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117871 states to 117871 states and 199139 transitions. [2021-12-14 14:33:24,426 INFO L78 Accepts]: Start accepts. Automaton has 117871 states and 199139 transitions. Word has length 136 [2021-12-14 14:33:24,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:33:24,426 INFO L470 AbstractCegarLoop]: Abstraction has 117871 states and 199139 transitions. [2021-12-14 14:33:24,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 14:33:24,426 INFO L276 IsEmpty]: Start isEmpty. Operand 117871 states and 199139 transitions. [2021-12-14 14:33:24,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-14 14:33:24,538 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:33:24,538 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:33:24,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-14 14:33:24,538 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:33:24,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:33:24,539 INFO L85 PathProgramCache]: Analyzing trace with hash -321392237, now seen corresponding path program 1 times [2021-12-14 14:33:24,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:33:24,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551283739] [2021-12-14 14:33:24,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:33:24,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:33:24,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:24,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:33:24,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:24,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:33:24,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:24,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:33:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:24,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:33:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:24,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:33:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:24,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:33:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:24,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 14:33:24,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:24,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 14:33:24,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:24,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 14:33:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:24,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 14:33:24,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:24,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-14 14:33:24,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:24,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-14 14:33:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:24,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 14:33:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:24,644 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-12-14 14:33:24,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:33:24,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551283739] [2021-12-14 14:33:24,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551283739] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:33:24,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238547634] [2021-12-14 14:33:24,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:33:24,645 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:33:24,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:33:24,646 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) [2021-12-14 14:33:24,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-14 14:33:24,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:33:24,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 1215 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-14 14:33:24,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:33:25,185 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-14 14:33:25,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 14:33:25,568 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-14 14:33:25,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238547634] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 14:33:25,568 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 14:33:25,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 23 [2021-12-14 14:33:25,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580346528] [2021-12-14 14:33:25,568 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 14:33:25,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-12-14 14:33:25,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:33:25,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-12-14 14:33:25,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-12-14 14:33:25,570 INFO L87 Difference]: Start difference. First operand 117871 states and 199139 transitions. Second operand has 23 states, 23 states have (on average 10.0) internal successors, (230), 18 states have internal predecessors, (230), 4 states have call successors, (44), 10 states have call predecessors, (44), 8 states have return successors, (36), 5 states have call predecessors, (36), 4 states have call successors, (36)