./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec9_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec9_product35.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 979399ca852926e8ca1f854d8ed303a24eaf5d25d69a2db1d99b3449cc418039 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 15:05:55,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 15:05:55,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 15:05:55,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 15:05:55,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 15:05:55,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 15:05:55,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 15:05:55,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 15:05:55,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 15:05:55,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 15:05:55,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 15:05:55,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 15:05:55,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 15:05:55,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 15:05:55,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 15:05:55,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 15:05:55,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 15:05:55,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 15:05:55,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 15:05:55,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 15:05:55,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 15:05:55,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 15:05:55,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 15:05:55,992 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 15:05:55,997 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 15:05:55,997 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 15:05:55,997 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 15:05:55,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 15:05:55,999 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 15:05:55,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 15:05:55,999 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 15:05:56,000 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 15:05:56,001 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 15:05:56,002 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 15:05:56,003 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 15:05:56,003 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 15:05:56,004 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 15:05:56,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 15:05:56,005 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 15:05:56,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 15:05:56,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 15:05:56,006 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 15:05:56,027 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 15:05:56,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 15:05:56,028 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 15:05:56,028 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 15:05:56,029 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 15:05:56,029 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 15:05:56,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 15:05:56,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 15:05:56,030 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 15:05:56,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 15:05:56,031 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 15:05:56,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 15:05:56,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 15:05:56,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 15:05:56,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 15:05:56,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 15:05:56,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 15:05:56,032 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 15:05:56,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 15:05:56,032 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 15:05:56,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 15:05:56,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 15:05:56,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 15:05:56,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 15:05:56,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:05:56,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 15:05:56,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 15:05:56,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 15:05:56,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 15:05:56,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 15:05:56,034 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 15:05:56,034 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 15:05:56,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 15:05:56,034 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 15:05:56,035 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 979399ca852926e8ca1f854d8ed303a24eaf5d25d69a2db1d99b3449cc418039 [2021-12-17 15:05:56,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 15:05:56,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 15:05:56,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 15:05:56,282 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 15:05:56,283 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 15:05:56,284 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec9_product35.cil.c [2021-12-17 15:05:56,343 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7d3aca84/923eb1d9ab1f46edae6534f9d7190fb3/FLAGe55689aae [2021-12-17 15:05:56,889 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 15:05:56,890 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec9_product35.cil.c [2021-12-17 15:05:56,922 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7d3aca84/923eb1d9ab1f46edae6534f9d7190fb3/FLAGe55689aae [2021-12-17 15:05:57,335 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7d3aca84/923eb1d9ab1f46edae6534f9d7190fb3 [2021-12-17 15:05:57,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 15:05:57,338 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 15:05:57,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 15:05:57,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 15:05:57,345 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 15:05:57,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:05:57" (1/1) ... [2021-12-17 15:05:57,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2147d9f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:05:57, skipping insertion in model container [2021-12-17 15:05:57,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:05:57" (1/1) ... [2021-12-17 15:05:57,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 15:05:57,409 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 15:05:57,827 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec9_product35.cil.c[46615,46628] [2021-12-17 15:05:57,873 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:05:57,882 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 15:05:57,932 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec9_product35.cil.c[46615,46628] [2021-12-17 15:05:57,960 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:05:57,986 INFO L208 MainTranslator]: Completed translation [2021-12-17 15:05:57,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:05:57 WrapperNode [2021-12-17 15:05:57,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 15:05:57,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 15:05:57,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 15:05:57,988 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 15:05:57,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:05:57" (1/1) ... [2021-12-17 15:05:58,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:05:57" (1/1) ... [2021-12-17 15:05:58,088 INFO L137 Inliner]: procedures = 138, calls = 252, calls flagged for inlining = 67, calls inlined = 64, statements flattened = 1162 [2021-12-17 15:05:58,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 15:05:58,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 15:05:58,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 15:05:58,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 15:05:58,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:05:57" (1/1) ... [2021-12-17 15:05:58,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:05:57" (1/1) ... [2021-12-17 15:05:58,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:05:57" (1/1) ... [2021-12-17 15:05:58,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:05:57" (1/1) ... [2021-12-17 15:05:58,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:05:57" (1/1) ... [2021-12-17 15:05:58,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:05:57" (1/1) ... [2021-12-17 15:05:58,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:05:57" (1/1) ... [2021-12-17 15:05:58,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 15:05:58,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 15:05:58,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 15:05:58,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 15:05:58,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:05:57" (1/1) ... [2021-12-17 15:05:58,178 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:05:58,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:05:58,199 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-17 15:05:58,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-17 15:05:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-12-17 15:05:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-12-17 15:05:58,226 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-17 15:05:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-17 15:05:58,226 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-12-17 15:05:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-12-17 15:05:58,226 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-17 15:05:58,227 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-17 15:05:58,227 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-12-17 15:05:58,227 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-12-17 15:05:58,227 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-17 15:05:58,227 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-17 15:05:58,227 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2021-12-17 15:05:58,227 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2021-12-17 15:05:58,227 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-17 15:05:58,228 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-17 15:05:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-12-17 15:05:58,228 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-12-17 15:05:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-17 15:05:58,228 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-17 15:05:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-12-17 15:05:58,228 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-12-17 15:05:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-12-17 15:05:58,228 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-12-17 15:05:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-17 15:05:58,229 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-17 15:05:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-17 15:05:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-17 15:05:58,229 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-17 15:05:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2021-12-17 15:05:58,229 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2021-12-17 15:05:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-17 15:05:58,230 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-17 15:05:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 15:05:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-12-17 15:05:58,230 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-12-17 15:05:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-12-17 15:05:58,231 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-12-17 15:05:58,231 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-17 15:05:58,231 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-17 15:05:58,231 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-17 15:05:58,231 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-17 15:05:58,231 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-17 15:05:58,232 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-17 15:05:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-17 15:05:58,232 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-17 15:05:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2021-12-17 15:05:58,232 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2021-12-17 15:05:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-17 15:05:58,232 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-17 15:05:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-12-17 15:05:58,233 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-12-17 15:05:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-17 15:05:58,233 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-17 15:05:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-17 15:05:58,234 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-17 15:05:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 15:05:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-17 15:05:58,236 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-17 15:05:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-17 15:05:58,236 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-17 15:05:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 15:05:58,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 15:05:58,517 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 15:05:58,518 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 15:05:59,193 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 15:05:59,200 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 15:05:59,201 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 15:05:59,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:05:59 BoogieIcfgContainer [2021-12-17 15:05:59,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 15:05:59,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 15:05:59,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 15:05:59,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 15:05:59,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 03:05:57" (1/3) ... [2021-12-17 15:05:59,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1486518c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:05:59, skipping insertion in model container [2021-12-17 15:05:59,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:05:57" (2/3) ... [2021-12-17 15:05:59,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1486518c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:05:59, skipping insertion in model container [2021-12-17 15:05:59,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:05:59" (3/3) ... [2021-12-17 15:05:59,209 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec9_product35.cil.c [2021-12-17 15:05:59,213 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 15:05:59,213 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 15:05:59,259 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 15:05:59,265 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 15:05:59,265 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 15:05:59,285 INFO L276 IsEmpty]: Start isEmpty. Operand has 467 states, 361 states have (on average 1.5346260387811634) internal successors, (554), 366 states have internal predecessors, (554), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2021-12-17 15:05:59,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-17 15:05:59,298 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:05:59,298 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:05:59,299 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:05:59,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:05:59,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1305642597, now seen corresponding path program 1 times [2021-12-17 15:05:59,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:05:59,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805774781] [2021-12-17 15:05:59,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:59,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:05:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:59,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:05:59,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:59,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:05:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:59,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:05:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:59,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:05:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:59,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 15:05:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:59,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 15:05:59,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:59,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-17 15:05:59,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:59,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-17 15:05:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:59,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-17 15:05:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:59,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-17 15:05:59,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:59,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-17 15:05:59,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:59,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-17 15:05:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:59,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-17 15:05:59,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:59,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-17 15:05:59,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:59,722 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-17 15:05:59,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:05:59,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805774781] [2021-12-17 15:05:59,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805774781] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:05:59,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039239423] [2021-12-17 15:05:59,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:59,723 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:05:59,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:05:59,726 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 15:05:59,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 15:06:00,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:00,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-17 15:06:00,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:06:00,291 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 15:06:00,292 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:06:00,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039239423] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:06:00,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:06:00,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-17 15:06:00,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173979349] [2021-12-17 15:06:00,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:06:00,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 15:06:00,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:06:00,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 15:06:00,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:06:00,318 INFO L87 Difference]: Start difference. First operand has 467 states, 361 states have (on average 1.5346260387811634) internal successors, (554), 366 states have internal predecessors, (554), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:06:00,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:06:00,368 INFO L93 Difference]: Finished difference Result 736 states and 1090 transitions. [2021-12-17 15:06:00,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 15:06:00,371 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 110 [2021-12-17 15:06:00,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:06:00,382 INFO L225 Difference]: With dead ends: 736 [2021-12-17 15:06:00,382 INFO L226 Difference]: Without dead ends: 460 [2021-12-17 15:06:00,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:06:00,394 INFO L933 BasicCegarLoop]: 700 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, 700 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:06:00,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:06:00,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2021-12-17 15:06:00,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 460. [2021-12-17 15:06:00,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 355 states have (on average 1.5295774647887324) internal successors, (543), 359 states have internal predecessors, (543), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2021-12-17 15:06:00,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 692 transitions. [2021-12-17 15:06:00,453 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 692 transitions. Word has length 110 [2021-12-17 15:06:00,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:06:00,454 INFO L470 AbstractCegarLoop]: Abstraction has 460 states and 692 transitions. [2021-12-17 15:06:00,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:06:00,455 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 692 transitions. [2021-12-17 15:06:00,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-17 15:06:00,460 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:06:00,460 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:06:00,480 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-17 15:06:00,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-17 15:06:00,668 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:06:00,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:06:00,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1412794511, now seen corresponding path program 1 times [2021-12-17 15:06:00,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:06:00,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418118320] [2021-12-17 15:06:00,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:00,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:06:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:00,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:06:00,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:00,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:06:00,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:00,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:06:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:00,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:06:00,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:00,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 15:06:00,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:00,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 15:06:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:00,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-17 15:06:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:00,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-17 15:06:00,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:00,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-17 15:06:00,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:00,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-17 15:06:00,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:00,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-17 15:06:00,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:00,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 15:06:00,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:00,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-17 15:06:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:00,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-17 15:06:00,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:00,876 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-17 15:06:00,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:06:00,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418118320] [2021-12-17 15:06:00,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418118320] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:06:00,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596150978] [2021-12-17 15:06:00,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:00,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:06:00,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:06:00,883 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 15:06:00,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 15:06:01,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:01,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 1162 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 15:06:01,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:06:01,299 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 15:06:01,299 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:06:01,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596150978] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:06:01,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:06:01,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-17 15:06:01,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323578221] [2021-12-17 15:06:01,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:06:01,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:06:01,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:06:01,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:06:01,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 15:06:01,301 INFO L87 Difference]: Start difference. First operand 460 states and 692 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:06:01,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:06:01,334 INFO L93 Difference]: Finished difference Result 726 states and 1068 transitions. [2021-12-17 15:06:01,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:06:01,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 111 [2021-12-17 15:06:01,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:06:01,338 INFO L225 Difference]: With dead ends: 726 [2021-12-17 15:06:01,338 INFO L226 Difference]: Without dead ends: 463 [2021-12-17 15:06:01,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 15:06:01,340 INFO L933 BasicCegarLoop]: 690 mSDtfsCounter, 1 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:06:01,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1378 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:06:01,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2021-12-17 15:06:01,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 462. [2021-12-17 15:06:01,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 357 states have (on average 1.526610644257703) internal successors, (545), 361 states have internal predecessors, (545), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2021-12-17 15:06:01,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 694 transitions. [2021-12-17 15:06:01,370 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 694 transitions. Word has length 111 [2021-12-17 15:06:01,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:06:01,370 INFO L470 AbstractCegarLoop]: Abstraction has 462 states and 694 transitions. [2021-12-17 15:06:01,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:06:01,370 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 694 transitions. [2021-12-17 15:06:01,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-17 15:06:01,374 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:06:01,374 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:06:01,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-17 15:06:01,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-12-17 15:06:01,581 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:06:01,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:06:01,581 INFO L85 PathProgramCache]: Analyzing trace with hash 389162940, now seen corresponding path program 1 times [2021-12-17 15:06:01,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:06:01,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708735787] [2021-12-17 15:06:01,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:01,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:06:01,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:01,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:06:01,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:01,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:06:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:01,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:06:01,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:01,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:06:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:01,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 15:06:01,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:01,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 15:06:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:01,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-17 15:06:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:01,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-17 15:06:01,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:01,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-17 15:06:01,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:01,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-17 15:06:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:01,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-17 15:06:01,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:01,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 15:06:01,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:01,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 15:06:01,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:01,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-17 15:06:01,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:01,737 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 15:06:01,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:06:01,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708735787] [2021-12-17 15:06:01,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708735787] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:06:01,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43451397] [2021-12-17 15:06:01,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:01,738 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:06:01,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:06:01,740 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 15:06:01,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-17 15:06:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:02,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 1189 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 15:06:02,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:06:02,175 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 15:06:02,176 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:06:02,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43451397] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:06:02,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:06:02,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-17 15:06:02,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148402720] [2021-12-17 15:06:02,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:06:02,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:06:02,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:06:02,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:06:02,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 15:06:02,181 INFO L87 Difference]: Start difference. First operand 462 states and 694 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:06:02,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:06:02,222 INFO L93 Difference]: Finished difference Result 977 states and 1488 transitions. [2021-12-17 15:06:02,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:06:02,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2021-12-17 15:06:02,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:06:02,226 INFO L225 Difference]: With dead ends: 977 [2021-12-17 15:06:02,227 INFO L226 Difference]: Without dead ends: 542 [2021-12-17 15:06:02,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 15:06:02,231 INFO L933 BasicCegarLoop]: 719 mSDtfsCounter, 142 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1366 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:06:02,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 1366 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:06:02,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2021-12-17 15:06:02,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 534. [2021-12-17 15:06:02,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 415 states have (on average 1.546987951807229) internal successors, (642), 419 states have internal predecessors, (642), 89 states have call successors, (89), 29 states have call predecessors, (89), 29 states have return successors, (88), 87 states have call predecessors, (88), 88 states have call successors, (88) [2021-12-17 15:06:02,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 819 transitions. [2021-12-17 15:06:02,268 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 819 transitions. Word has length 120 [2021-12-17 15:06:02,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:06:02,269 INFO L470 AbstractCegarLoop]: Abstraction has 534 states and 819 transitions. [2021-12-17 15:06:02,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:06:02,270 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 819 transitions. [2021-12-17 15:06:02,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-17 15:06:02,277 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:06:02,278 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:06:02,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-17 15:06:02,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:06:02,499 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:06:02,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:06:02,499 INFO L85 PathProgramCache]: Analyzing trace with hash 2042303042, now seen corresponding path program 1 times [2021-12-17 15:06:02,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:06:02,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007339537] [2021-12-17 15:06:02,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:02,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:06:02,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:02,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:06:02,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:02,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:06:02,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:02,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:06:02,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:02,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:06:02,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:02,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 15:06:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:02,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 15:06:02,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:02,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 15:06:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:02,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-17 15:06:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:02,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 15:06:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:02,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-17 15:06:02,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:02,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-17 15:06:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:02,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-17 15:06:02,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:02,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-17 15:06:02,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:02,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-17 15:06:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:02,660 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 15:06:02,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:06:02,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007339537] [2021-12-17 15:06:02,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007339537] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:06:02,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910519028] [2021-12-17 15:06:02,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:02,667 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:06:02,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:06:02,670 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 15:06:02,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-17 15:06:02,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:02,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 1196 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-17 15:06:02,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:06:03,081 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-17 15:06:03,082 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:06:03,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910519028] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:06:03,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:06:03,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-17 15:06:03,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839756394] [2021-12-17 15:06:03,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:06:03,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 15:06:03,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:06:03,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 15:06:03,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 15:06:03,083 INFO L87 Difference]: Start difference. First operand 534 states and 819 transitions. Second operand has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 15:06:03,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:06:03,136 INFO L93 Difference]: Finished difference Result 1059 states and 1628 transitions. [2021-12-17 15:06:03,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 15:06:03,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2021-12-17 15:06:03,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:06:03,140 INFO L225 Difference]: With dead ends: 1059 [2021-12-17 15:06:03,140 INFO L226 Difference]: Without dead ends: 536 [2021-12-17 15:06:03,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:06:03,144 INFO L933 BasicCegarLoop]: 683 mSDtfsCounter, 160 mSDsluCounter, 1867 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 2550 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:06:03,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 2550 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:06:03,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2021-12-17 15:06:03,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2021-12-17 15:06:03,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 416 states have (on average 1.5456730769230769) internal successors, (643), 421 states have internal predecessors, (643), 89 states have call successors, (89), 29 states have call predecessors, (89), 30 states have return successors, (90), 87 states have call predecessors, (90), 88 states have call successors, (90) [2021-12-17 15:06:03,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 822 transitions. [2021-12-17 15:06:03,171 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 822 transitions. Word has length 121 [2021-12-17 15:06:03,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:06:03,172 INFO L470 AbstractCegarLoop]: Abstraction has 536 states and 822 transitions. [2021-12-17 15:06:03,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 15:06:03,172 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 822 transitions. [2021-12-17 15:06:03,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-17 15:06:03,174 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:06:03,174 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:06:03,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-17 15:06:03,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:06:03,387 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:06:03,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:06:03,388 INFO L85 PathProgramCache]: Analyzing trace with hash -410227042, now seen corresponding path program 1 times [2021-12-17 15:06:03,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:06:03,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570531981] [2021-12-17 15:06:03,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:03,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:06:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:06:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:06:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:06:03,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:06:03,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-17 15:06:03,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-17 15:06:03,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-17 15:06:03,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-17 15:06:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-17 15:06:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-17 15:06:03,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 15:06:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-17 15:06:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-17 15:06:03,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-17 15:06:03,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,551 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-17 15:06:03,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:06:03,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570531981] [2021-12-17 15:06:03,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570531981] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:06:03,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775359662] [2021-12-17 15:06:03,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:03,552 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:06:03,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:06:03,553 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 15:06:03,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-17 15:06:03,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 1197 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-17 15:06:03,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:06:04,013 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-17 15:06:04,014 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:06:04,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775359662] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:06:04,014 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:06:04,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-17 15:06:04,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925017951] [2021-12-17 15:06:04,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:06:04,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 15:06:04,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:06:04,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 15:06:04,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-17 15:06:04,016 INFO L87 Difference]: Start difference. First operand 536 states and 822 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 15:06:04,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:06:04,093 INFO L93 Difference]: Finished difference Result 1061 states and 1633 transitions. [2021-12-17 15:06:04,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 15:06:04,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 122 [2021-12-17 15:06:04,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:06:04,098 INFO L225 Difference]: With dead ends: 1061 [2021-12-17 15:06:04,099 INFO L226 Difference]: Without dead ends: 538 [2021-12-17 15:06:04,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-12-17 15:06:04,101 INFO L933 BasicCegarLoop]: 681 mSDtfsCounter, 159 mSDsluCounter, 1858 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2539 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:06:04,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 2539 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:06:04,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-12-17 15:06:04,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2021-12-17 15:06:04,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 417 states have (on average 1.5443645083932853) internal successors, (644), 423 states have internal predecessors, (644), 89 states have call successors, (89), 29 states have call predecessors, (89), 31 states have return successors, (95), 87 states have call predecessors, (95), 88 states have call successors, (95) [2021-12-17 15:06:04,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 828 transitions. [2021-12-17 15:06:04,119 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 828 transitions. Word has length 122 [2021-12-17 15:06:04,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:06:04,120 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 828 transitions. [2021-12-17 15:06:04,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 15:06:04,120 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 828 transitions. [2021-12-17 15:06:04,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-17 15:06:04,122 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:06:04,122 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:06:04,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-17 15:06:04,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:06:04,344 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:06:04,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:06:04,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1783283689, now seen corresponding path program 1 times [2021-12-17 15:06:04,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:06:04,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032580722] [2021-12-17 15:06:04,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:04,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:06:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:04,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:06:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:04,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:06:04,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:04,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:06:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:04,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:06:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:04,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:06:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:04,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 15:06:04,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:04,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-17 15:06:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:04,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-17 15:06:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:04,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-17 15:06:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:04,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-17 15:06:04,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:04,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-17 15:06:04,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:04,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-17 15:06:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:04,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-17 15:06:04,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:04,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-17 15:06:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:04,456 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 15:06:04,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:06:04,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032580722] [2021-12-17 15:06:04,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032580722] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:06:04,456 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:06:04,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 15:06:04,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768500807] [2021-12-17 15:06:04,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:06:04,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 15:06:04,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:06:04,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 15:06:04,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:06:04,457 INFO L87 Difference]: Start difference. First operand 538 states and 828 transitions. Second operand has 9 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 15:06:06,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:06:06,274 INFO L93 Difference]: Finished difference Result 1287 states and 2007 transitions. [2021-12-17 15:06:06,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-17 15:06:06,275 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 123 [2021-12-17 15:06:06,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:06:06,279 INFO L225 Difference]: With dead ends: 1287 [2021-12-17 15:06:06,279 INFO L226 Difference]: Without dead ends: 772 [2021-12-17 15:06:06,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-17 15:06:06,281 INFO L933 BasicCegarLoop]: 784 mSDtfsCounter, 1819 mSDsluCounter, 1378 mSDsCounter, 0 mSdLazyCounter, 2547 mSolverCounterSat, 749 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1839 SdHoareTripleChecker+Valid, 2162 SdHoareTripleChecker+Invalid, 3296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 749 IncrementalHoareTripleChecker+Valid, 2547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 15:06:06,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1839 Valid, 2162 Invalid, 3296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [749 Valid, 2547 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 15:06:06,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2021-12-17 15:06:06,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 538. [2021-12-17 15:06:06,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 417 states have (on average 1.5443645083932853) internal successors, (644), 423 states have internal predecessors, (644), 89 states have call successors, (89), 29 states have call predecessors, (89), 31 states have return successors, (94), 87 states have call predecessors, (94), 88 states have call successors, (94) [2021-12-17 15:06:06,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 827 transitions. [2021-12-17 15:06:06,307 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 827 transitions. Word has length 123 [2021-12-17 15:06:06,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:06:06,308 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 827 transitions. [2021-12-17 15:06:06,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 15:06:06,308 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 827 transitions. [2021-12-17 15:06:06,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-17 15:06:06,309 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:06:06,310 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] [2021-12-17 15:06:06,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 15:06:06,310 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:06:06,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:06:06,310 INFO L85 PathProgramCache]: Analyzing trace with hash -14687389, now seen corresponding path program 2 times [2021-12-17 15:06:06,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:06:06,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834146665] [2021-12-17 15:06:06,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:06,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:06:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:06,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:06:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:06,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:06:06,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:06,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:06:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:06,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:06:06,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:06,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:06:06,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:06,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-17 15:06:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:06,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-17 15:06:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:06,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-17 15:06:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:06,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 15:06:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:06,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-17 15:06:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:06,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-17 15:06:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:06,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-17 15:06:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:06,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-17 15:06:06,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:06,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-17 15:06:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:06,423 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 15:06:06,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:06:06,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834146665] [2021-12-17 15:06:06,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834146665] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:06:06,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:06:06,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 15:06:06,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204833837] [2021-12-17 15:06:06,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:06:06,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 15:06:06,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:06:06,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 15:06:06,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:06:06,425 INFO L87 Difference]: Start difference. First operand 538 states and 827 transitions. Second operand has 9 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 15:06:08,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:06:08,274 INFO L93 Difference]: Finished difference Result 1289 states and 2010 transitions. [2021-12-17 15:06:08,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-17 15:06:08,274 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 124 [2021-12-17 15:06:08,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:06:08,310 INFO L225 Difference]: With dead ends: 1289 [2021-12-17 15:06:08,310 INFO L226 Difference]: Without dead ends: 774 [2021-12-17 15:06:08,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-17 15:06:08,313 INFO L933 BasicCegarLoop]: 762 mSDtfsCounter, 1892 mSDsluCounter, 1375 mSDsCounter, 0 mSdLazyCounter, 2448 mSolverCounterSat, 791 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1912 SdHoareTripleChecker+Valid, 2137 SdHoareTripleChecker+Invalid, 3239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 791 IncrementalHoareTripleChecker+Valid, 2448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 15:06:08,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1912 Valid, 2137 Invalid, 3239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [791 Valid, 2448 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 15:06:08,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2021-12-17 15:06:08,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 540. [2021-12-17 15:06:08,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 418 states have (on average 1.5430622009569377) internal successors, (645), 425 states have internal predecessors, (645), 89 states have call successors, (89), 29 states have call predecessors, (89), 32 states have return successors, (96), 87 states have call predecessors, (96), 88 states have call successors, (96) [2021-12-17 15:06:08,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 830 transitions. [2021-12-17 15:06:08,339 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 830 transitions. Word has length 124 [2021-12-17 15:06:08,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:06:08,339 INFO L470 AbstractCegarLoop]: Abstraction has 540 states and 830 transitions. [2021-12-17 15:06:08,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 15:06:08,340 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 830 transitions. [2021-12-17 15:06:08,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-17 15:06:08,341 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:06:08,342 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:06:08,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 15:06:08,342 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:06:08,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:06:08,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1844049874, now seen corresponding path program 1 times [2021-12-17 15:06:08,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:06:08,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405163972] [2021-12-17 15:06:08,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:08,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:06:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:08,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:06:08,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:08,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:06:08,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:08,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:06:08,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:08,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:06:08,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:08,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:06:08,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:08,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:06:08,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:08,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-17 15:06:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:08,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 15:06:08,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:08,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-17 15:06:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:08,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-17 15:06:08,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:08,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-17 15:06:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:08,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-17 15:06:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:08,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-17 15:06:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:08,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-17 15:06:08,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:08,483 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-17 15:06:08,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:06:08,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405163972] [2021-12-17 15:06:08,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405163972] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:06:08,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:06:08,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 15:06:08,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340050837] [2021-12-17 15:06:08,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:06:08,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 15:06:08,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:06:08,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 15:06:08,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-17 15:06:08,484 INFO L87 Difference]: Start difference. First operand 540 states and 830 transitions. Second operand has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2021-12-17 15:06:11,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:06:11,147 INFO L93 Difference]: Finished difference Result 1287 states and 2005 transitions. [2021-12-17 15:06:11,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 15:06:11,148 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 125 [2021-12-17 15:06:11,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:06:11,151 INFO L225 Difference]: With dead ends: 1287 [2021-12-17 15:06:11,152 INFO L226 Difference]: Without dead ends: 774 [2021-12-17 15:06:11,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-17 15:06:11,154 INFO L933 BasicCegarLoop]: 782 mSDtfsCounter, 1954 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 4579 mSolverCounterSat, 803 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1954 SdHoareTripleChecker+Valid, 2874 SdHoareTripleChecker+Invalid, 5382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 803 IncrementalHoareTripleChecker+Valid, 4579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-17 15:06:11,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1954 Valid, 2874 Invalid, 5382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [803 Valid, 4579 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-17 15:06:11,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2021-12-17 15:06:11,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 540. [2021-12-17 15:06:11,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 418 states have (on average 1.5430622009569377) internal successors, (645), 425 states have internal predecessors, (645), 89 states have call successors, (89), 29 states have call predecessors, (89), 32 states have return successors, (95), 87 states have call predecessors, (95), 88 states have call successors, (95) [2021-12-17 15:06:11,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 829 transitions. [2021-12-17 15:06:11,176 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 829 transitions. Word has length 125 [2021-12-17 15:06:11,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:06:11,176 INFO L470 AbstractCegarLoop]: Abstraction has 540 states and 829 transitions. [2021-12-17 15:06:11,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2021-12-17 15:06:11,176 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 829 transitions. [2021-12-17 15:06:11,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-12-17 15:06:11,178 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:06:11,179 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] [2021-12-17 15:06:11,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 15:06:11,179 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:06:11,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:06:11,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1768213281, now seen corresponding path program 2 times [2021-12-17 15:06:11,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:06:11,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222435327] [2021-12-17 15:06:11,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:11,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:06:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:11,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:06:11,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:11,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:06:11,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:11,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:06:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:11,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:06:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:11,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:06:11,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:11,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:06:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:11,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-17 15:06:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:11,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-17 15:06:11,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:11,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 15:06:11,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:11,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 15:06:11,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:11,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 15:06:11,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:11,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-17 15:06:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:11,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-17 15:06:11,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:11,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-17 15:06:11,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:11,307 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-17 15:06:11,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:06:11,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222435327] [2021-12-17 15:06:11,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222435327] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:06:11,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:06:11,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 15:06:11,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466886391] [2021-12-17 15:06:11,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:06:11,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 15:06:11,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:06:11,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 15:06:11,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-17 15:06:11,309 INFO L87 Difference]: Start difference. First operand 540 states and 829 transitions. Second operand has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2021-12-17 15:06:13,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:06:13,880 INFO L93 Difference]: Finished difference Result 1289 states and 2011 transitions. [2021-12-17 15:06:13,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 15:06:13,881 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 126 [2021-12-17 15:06:13,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:06:13,885 INFO L225 Difference]: With dead ends: 1289 [2021-12-17 15:06:13,885 INFO L226 Difference]: Without dead ends: 776 [2021-12-17 15:06:13,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-17 15:06:13,887 INFO L933 BasicCegarLoop]: 745 mSDtfsCounter, 2079 mSDsluCounter, 2062 mSDsCounter, 0 mSdLazyCounter, 4333 mSolverCounterSat, 856 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2079 SdHoareTripleChecker+Valid, 2807 SdHoareTripleChecker+Invalid, 5189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 856 IncrementalHoareTripleChecker+Valid, 4333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-17 15:06:13,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2079 Valid, 2807 Invalid, 5189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [856 Valid, 4333 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-17 15:06:13,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2021-12-17 15:06:13,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 542. [2021-12-17 15:06:13,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 419 states have (on average 1.541766109785203) internal successors, (646), 427 states have internal predecessors, (646), 89 states have call successors, (89), 29 states have call predecessors, (89), 33 states have return successors, (100), 87 states have call predecessors, (100), 88 states have call successors, (100) [2021-12-17 15:06:13,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 835 transitions. [2021-12-17 15:06:13,909 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 835 transitions. Word has length 126 [2021-12-17 15:06:13,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:06:13,909 INFO L470 AbstractCegarLoop]: Abstraction has 542 states and 835 transitions. [2021-12-17 15:06:13,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2021-12-17 15:06:13,909 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 835 transitions. [2021-12-17 15:06:13,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-17 15:06:13,911 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:06:13,911 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:06:13,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 15:06:13,911 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:06:13,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:06:13,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1051089069, now seen corresponding path program 1 times [2021-12-17 15:06:13,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:06:13,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131656051] [2021-12-17 15:06:13,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:13,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:06:13,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:13,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:06:13,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:13,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:06:13,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:13,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:06:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:13,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:06:13,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:13,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:06:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:13,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:06:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:14,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-17 15:06:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:14,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-17 15:06:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:14,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-17 15:06:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:14,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-17 15:06:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:14,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-17 15:06:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:14,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-17 15:06:14,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:14,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-17 15:06:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:14,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-17 15:06:14,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:14,043 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-17 15:06:14,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:06:14,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131656051] [2021-12-17 15:06:14,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131656051] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:06:14,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120485140] [2021-12-17 15:06:14,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:14,044 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:06:14,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:06:14,061 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 15:06:14,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-17 15:06:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:14,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 15:06:14,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:06:14,450 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:06:14,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 15:06:14,657 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:06:14,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120485140] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 15:06:14,657 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 15:06:14,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2021-12-17 15:06:14,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4831054] [2021-12-17 15:06:14,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 15:06:14,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-17 15:06:14,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:06:14,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-17 15:06:14,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-12-17 15:06:14,659 INFO L87 Difference]: Start difference. First operand 542 states and 835 transitions. Second operand has 15 states, 14 states have (on average 10.285714285714286) internal successors, (144), 11 states have internal predecessors, (144), 4 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2021-12-17 15:06:18,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:06:18,278 INFO L93 Difference]: Finished difference Result 2198 states and 3649 transitions. [2021-12-17 15:06:18,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-17 15:06:18,279 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.285714285714286) internal successors, (144), 11 states have internal predecessors, (144), 4 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 127 [2021-12-17 15:06:18,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:06:18,286 INFO L225 Difference]: With dead ends: 2198 [2021-12-17 15:06:18,286 INFO L226 Difference]: Without dead ends: 1687 [2021-12-17 15:06:18,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2021-12-17 15:06:18,289 INFO L933 BasicCegarLoop]: 1054 mSDtfsCounter, 4324 mSDsluCounter, 4230 mSDsCounter, 0 mSdLazyCounter, 6291 mSolverCounterSat, 1823 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4326 SdHoareTripleChecker+Valid, 5284 SdHoareTripleChecker+Invalid, 8114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1823 IncrementalHoareTripleChecker+Valid, 6291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:06:18,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4326 Valid, 5284 Invalid, 8114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1823 Valid, 6291 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-12-17 15:06:18,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2021-12-17 15:06:18,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 985. [2021-12-17 15:06:18,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 783 states have (on average 1.5989782886334611) internal successors, (1252), 791 states have internal predecessors, (1252), 168 states have call successors, (168), 29 states have call predecessors, (168), 33 states have return successors, (189), 166 states have call predecessors, (189), 167 states have call successors, (189) [2021-12-17 15:06:18,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1609 transitions. [2021-12-17 15:06:18,349 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1609 transitions. Word has length 127 [2021-12-17 15:06:18,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:06:18,349 INFO L470 AbstractCegarLoop]: Abstraction has 985 states and 1609 transitions. [2021-12-17 15:06:18,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.285714285714286) internal successors, (144), 11 states have internal predecessors, (144), 4 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2021-12-17 15:06:18,350 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1609 transitions. [2021-12-17 15:06:18,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-17 15:06:18,353 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:06:18,353 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:06:18,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-17 15:06:18,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:06:18,571 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:06:18,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:06:18,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1684173326, now seen corresponding path program 1 times [2021-12-17 15:06:18,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:06:18,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839038652] [2021-12-17 15:06:18,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:18,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:06:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:18,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:06:18,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:18,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:06:18,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:18,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:06:18,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:18,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:06:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:18,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:06:18,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:18,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:06:18,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:18,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 15:06:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:18,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 15:06:18,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:18,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-17 15:06:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:18,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-17 15:06:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:18,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-17 15:06:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:18,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-17 15:06:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:18,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-17 15:06:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:18,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-17 15:06:18,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:18,643 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:06:18,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:06:18,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839038652] [2021-12-17 15:06:18,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839038652] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:06:18,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:06:18,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:06:18,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066032387] [2021-12-17 15:06:18,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:06:18,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:06:18,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:06:18,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:06:18,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:06:18,645 INFO L87 Difference]: Start difference. First operand 985 states and 1609 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:06:20,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:06:20,043 INFO L93 Difference]: Finished difference Result 2549 states and 4257 transitions. [2021-12-17 15:06:20,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:06:20,044 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2021-12-17 15:06:20,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:06:20,051 INFO L225 Difference]: With dead ends: 2549 [2021-12-17 15:06:20,051 INFO L226 Difference]: Without dead ends: 1642 [2021-12-17 15:06:20,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:06:20,054 INFO L933 BasicCegarLoop]: 836 mSDtfsCounter, 1824 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 846 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1842 SdHoareTripleChecker+Valid, 1809 SdHoareTripleChecker+Invalid, 2166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 846 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:06:20,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1842 Valid, 1809 Invalid, 2166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [846 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-17 15:06:20,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2021-12-17 15:06:20,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 1400. [2021-12-17 15:06:20,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1119 states have (on average 1.6193029490616622) internal successors, (1812), 1127 states have internal predecessors, (1812), 247 states have call successors, (247), 29 states have call predecessors, (247), 33 states have return successors, (278), 245 states have call predecessors, (278), 246 states have call successors, (278) [2021-12-17 15:06:20,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 2337 transitions. [2021-12-17 15:06:20,113 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 2337 transitions. Word has length 130 [2021-12-17 15:06:20,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:06:20,113 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 2337 transitions. [2021-12-17 15:06:20,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:06:20,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 2337 transitions. [2021-12-17 15:06:20,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 15:06:20,119 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:06:20,119 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:06:20,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-17 15:06:20,119 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:06:20,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:06:20,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1439175383, now seen corresponding path program 1 times [2021-12-17 15:06:20,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:06:20,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509632398] [2021-12-17 15:06:20,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:20,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:06:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:20,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:06:20,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:20,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:06:20,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:20,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:06:20,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:20,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:06:20,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:20,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:06:20,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:20,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:06:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:20,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-17 15:06:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:20,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-17 15:06:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:20,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-17 15:06:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:20,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 15:06:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:20,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-17 15:06:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:20,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 15:06:20,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:20,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-17 15:06:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:20,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-17 15:06:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:20,204 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:06:20,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:06:20,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509632398] [2021-12-17 15:06:20,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509632398] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:06:20,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:06:20,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:06:20,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630521155] [2021-12-17 15:06:20,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:06:20,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:06:20,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:06:20,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:06:20,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:06:20,205 INFO L87 Difference]: Start difference. First operand 1400 states and 2337 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:06:21,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:06:21,688 INFO L93 Difference]: Finished difference Result 3588 states and 6070 transitions. [2021-12-17 15:06:21,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:06:21,689 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 131 [2021-12-17 15:06:21,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:06:21,701 INFO L225 Difference]: With dead ends: 3588 [2021-12-17 15:06:21,701 INFO L226 Difference]: Without dead ends: 2319 [2021-12-17 15:06:21,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:06:21,706 INFO L933 BasicCegarLoop]: 769 mSDtfsCounter, 1924 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 845 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1944 SdHoareTripleChecker+Valid, 1723 SdHoareTripleChecker+Invalid, 2105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 845 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 15:06:21,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1944 Valid, 1723 Invalid, 2105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [845 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 15:06:21,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2319 states. [2021-12-17 15:06:21,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2319 to 2077. [2021-12-17 15:06:21,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2077 states, 1677 states have (on average 1.6302921884317234) internal successors, (2734), 1685 states have internal predecessors, (2734), 366 states have call successors, (366), 29 states have call predecessors, (366), 33 states have return successors, (397), 364 states have call predecessors, (397), 365 states have call successors, (397) [2021-12-17 15:06:21,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2077 states to 2077 states and 3497 transitions. [2021-12-17 15:06:21,786 INFO L78 Accepts]: Start accepts. Automaton has 2077 states and 3497 transitions. Word has length 131 [2021-12-17 15:06:21,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:06:21,786 INFO L470 AbstractCegarLoop]: Abstraction has 2077 states and 3497 transitions. [2021-12-17 15:06:21,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:06:21,786 INFO L276 IsEmpty]: Start isEmpty. Operand 2077 states and 3497 transitions. [2021-12-17 15:06:21,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-12-17 15:06:21,794 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:06:21,794 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:06:21,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-17 15:06:21,795 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:06:21,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:06:21,795 INFO L85 PathProgramCache]: Analyzing trace with hash 723238404, now seen corresponding path program 1 times [2021-12-17 15:06:21,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:06:21,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172846396] [2021-12-17 15:06:21,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:21,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:06:21,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:21,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:06:21,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:21,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:06:21,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:21,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:06:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:21,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:06:21,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:21,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:06:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:21,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:06:21,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:21,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-17 15:06:21,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:21,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-17 15:06:21,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:21,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-17 15:06:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:21,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-17 15:06:21,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:21,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-17 15:06:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:21,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-17 15:06:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:21,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-17 15:06:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:21,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-17 15:06:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:21,902 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:06:21,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:06:21,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172846396] [2021-12-17 15:06:21,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172846396] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:06:21,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:06:21,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:06:21,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299686488] [2021-12-17 15:06:21,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:06:21,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:06:21,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:06:21,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:06:21,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:06:21,904 INFO L87 Difference]: Start difference. First operand 2077 states and 3497 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:06:23,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:06:23,419 INFO L93 Difference]: Finished difference Result 5173 states and 8849 transitions. [2021-12-17 15:06:23,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:06:23,419 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2021-12-17 15:06:23,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:06:23,433 INFO L225 Difference]: With dead ends: 5173 [2021-12-17 15:06:23,433 INFO L226 Difference]: Without dead ends: 3362 [2021-12-17 15:06:23,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:06:23,438 INFO L933 BasicCegarLoop]: 815 mSDtfsCounter, 1788 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 815 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1807 SdHoareTripleChecker+Valid, 1758 SdHoareTripleChecker+Invalid, 2140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 815 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 15:06:23,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1807 Valid, 1758 Invalid, 2140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [815 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 15:06:23,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3362 states. [2021-12-17 15:06:23,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3362 to 3120. [2021-12-17 15:06:23,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 2558 states have (on average 1.638780297107115) internal successors, (4192), 2566 states have internal predecessors, (4192), 528 states have call successors, (528), 29 states have call predecessors, (528), 33 states have return successors, (575), 526 states have call predecessors, (575), 527 states have call successors, (575) [2021-12-17 15:06:23,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 5295 transitions. [2021-12-17 15:06:23,598 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 5295 transitions. Word has length 132 [2021-12-17 15:06:23,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:06:23,599 INFO L470 AbstractCegarLoop]: Abstraction has 3120 states and 5295 transitions. [2021-12-17 15:06:23,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:06:23,599 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 5295 transitions. [2021-12-17 15:06:23,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 15:06:23,610 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:06:23,610 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:06:23,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-17 15:06:23,611 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:06:23,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:06:23,611 INFO L85 PathProgramCache]: Analyzing trace with hash -240342154, now seen corresponding path program 1 times [2021-12-17 15:06:23,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:06:23,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949931731] [2021-12-17 15:06:23,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:23,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:06:23,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:23,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:06:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:23,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:06:23,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:23,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:06:23,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:23,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:06:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:23,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:06:23,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:23,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:06:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:23,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-17 15:06:23,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:23,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 15:06:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:23,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-17 15:06:23,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:23,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-17 15:06:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:23,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-17 15:06:23,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:23,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-17 15:06:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:23,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-17 15:06:23,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:23,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-17 15:06:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:23,691 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:06:23,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:06:23,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949931731] [2021-12-17 15:06:23,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949931731] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:06:23,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:06:23,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:06:23,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555813142] [2021-12-17 15:06:23,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:06:23,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:06:23,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:06:23,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:06:23,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:06:23,693 INFO L87 Difference]: Start difference. First operand 3120 states and 5295 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:06:25,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:06:25,261 INFO L93 Difference]: Finished difference Result 7687 states and 13264 transitions. [2021-12-17 15:06:25,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:06:25,261 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2021-12-17 15:06:25,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:06:25,282 INFO L225 Difference]: With dead ends: 7687 [2021-12-17 15:06:25,282 INFO L226 Difference]: Without dead ends: 5052 [2021-12-17 15:06:25,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:06:25,289 INFO L933 BasicCegarLoop]: 781 mSDtfsCounter, 1937 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 846 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1958 SdHoareTripleChecker+Valid, 1719 SdHoareTripleChecker+Invalid, 2104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 846 IncrementalHoareTripleChecker+Valid, 1258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 15:06:25,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1958 Valid, 1719 Invalid, 2104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [846 Valid, 1258 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 15:06:25,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5052 states. [2021-12-17 15:06:25,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5052 to 4810. [2021-12-17 15:06:25,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4003 states have (on average 1.6447664251811143) internal successors, (6584), 4011 states have internal predecessors, (6584), 773 states have call successors, (773), 29 states have call predecessors, (773), 33 states have return successors, (846), 771 states have call predecessors, (846), 772 states have call successors, (846) [2021-12-17 15:06:25,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 8203 transitions. [2021-12-17 15:06:25,565 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 8203 transitions. Word has length 133 [2021-12-17 15:06:25,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:06:25,566 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 8203 transitions. [2021-12-17 15:06:25,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:06:25,567 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 8203 transitions. [2021-12-17 15:06:25,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-17 15:06:25,580 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:06:25,580 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:06:25,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-17 15:06:25,580 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:06:25,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:06:25,580 INFO L85 PathProgramCache]: Analyzing trace with hash 884137384, now seen corresponding path program 1 times [2021-12-17 15:06:25,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:06:25,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174414740] [2021-12-17 15:06:25,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:25,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:06:25,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:25,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:06:25,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:25,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:06:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:25,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:06:25,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:25,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:06:25,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:25,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:06:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:25,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:06:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:25,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-17 15:06:25,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:25,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-17 15:06:25,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:25,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 15:06:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:25,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-17 15:06:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:25,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-17 15:06:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:25,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-17 15:06:25,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:25,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-17 15:06:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:25,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-17 15:06:25,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:25,655 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:06:25,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:06:25,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174414740] [2021-12-17 15:06:25,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174414740] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:06:25,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:06:25,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:06:25,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384367123] [2021-12-17 15:06:25,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:06:25,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:06:25,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:06:25,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:06:25,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:06:25,657 INFO L87 Difference]: Start difference. First operand 4810 states and 8203 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:06:27,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:06:27,197 INFO L93 Difference]: Finished difference Result 11888 states and 20641 transitions. [2021-12-17 15:06:27,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:06:27,203 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 134 [2021-12-17 15:06:27,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:06:27,239 INFO L225 Difference]: With dead ends: 11888 [2021-12-17 15:06:27,239 INFO L226 Difference]: Without dead ends: 7895 [2021-12-17 15:06:27,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:06:27,248 INFO L933 BasicCegarLoop]: 805 mSDtfsCounter, 1920 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 848 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1940 SdHoareTripleChecker+Valid, 1765 SdHoareTripleChecker+Invalid, 2128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 848 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:06:27,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1940 Valid, 1765 Invalid, 2128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [848 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-17 15:06:27,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7895 states. [2021-12-17 15:06:27,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7895 to 7653. [2021-12-17 15:06:27,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7653 states, 6353 states have (on average 1.6437903352746734) internal successors, (10443), 6361 states have internal predecessors, (10443), 1266 states have call successors, (1266), 29 states have call predecessors, (1266), 33 states have return successors, (1383), 1264 states have call predecessors, (1383), 1265 states have call successors, (1383) [2021-12-17 15:06:27,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7653 states to 7653 states and 13092 transitions. [2021-12-17 15:06:27,608 INFO L78 Accepts]: Start accepts. Automaton has 7653 states and 13092 transitions. Word has length 134 [2021-12-17 15:06:27,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:06:27,608 INFO L470 AbstractCegarLoop]: Abstraction has 7653 states and 13092 transitions. [2021-12-17 15:06:27,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:06:27,608 INFO L276 IsEmpty]: Start isEmpty. Operand 7653 states and 13092 transitions. [2021-12-17 15:06:27,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-17 15:06:27,624 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:06:27,624 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:06:27,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-17 15:06:27,625 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:06:27,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:06:27,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1357659182, now seen corresponding path program 1 times [2021-12-17 15:06:27,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:06:27,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063520830] [2021-12-17 15:06:27,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:27,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:06:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:27,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:06:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:27,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:06:27,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:27,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:06:27,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:27,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:06:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:27,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:06:27,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:27,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:06:27,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:27,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 15:06:27,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:27,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 15:06:27,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:27,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-17 15:06:27,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:27,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 15:06:27,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:27,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-17 15:06:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:27,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-17 15:06:27,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:27,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-17 15:06:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:27,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-17 15:06:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:27,733 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:06:27,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:06:27,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063520830] [2021-12-17 15:06:27,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063520830] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:06:27,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:06:27,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:06:27,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013156202] [2021-12-17 15:06:27,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:06:27,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:06:27,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:06:27,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:06:27,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:06:27,736 INFO L87 Difference]: Start difference. First operand 7653 states and 13092 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:06:29,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:06:29,620 INFO L93 Difference]: Finished difference Result 19503 states and 33917 transitions. [2021-12-17 15:06:29,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:06:29,621 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 135 [2021-12-17 15:06:29,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:06:29,659 INFO L225 Difference]: With dead ends: 19503 [2021-12-17 15:06:29,659 INFO L226 Difference]: Without dead ends: 13069 [2021-12-17 15:06:29,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:06:29,673 INFO L933 BasicCegarLoop]: 808 mSDtfsCounter, 1858 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 845 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1876 SdHoareTripleChecker+Valid, 1776 SdHoareTripleChecker+Invalid, 2158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 845 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 15:06:29,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1876 Valid, 1776 Invalid, 2158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [845 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 15:06:29,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13069 states. [2021-12-17 15:06:30,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13069 to 12827. [2021-12-17 15:06:30,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12827 states, 10705 states have (on average 1.6446520317608595) internal successors, (17606), 10713 states have internal predecessors, (17606), 2088 states have call successors, (2088), 29 states have call predecessors, (2088), 33 states have return successors, (2283), 2086 states have call predecessors, (2283), 2087 states have call successors, (2283) [2021-12-17 15:06:30,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12827 states to 12827 states and 21977 transitions. [2021-12-17 15:06:30,292 INFO L78 Accepts]: Start accepts. Automaton has 12827 states and 21977 transitions. Word has length 135 [2021-12-17 15:06:30,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:06:30,293 INFO L470 AbstractCegarLoop]: Abstraction has 12827 states and 21977 transitions. [2021-12-17 15:06:30,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:06:30,293 INFO L276 IsEmpty]: Start isEmpty. Operand 12827 states and 21977 transitions. [2021-12-17 15:06:30,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-12-17 15:06:30,315 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:06:30,315 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:06:30,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-17 15:06:30,316 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:06:30,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:06:30,316 INFO L85 PathProgramCache]: Analyzing trace with hash 748994394, now seen corresponding path program 1 times [2021-12-17 15:06:30,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:06:30,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653916671] [2021-12-17 15:06:30,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:30,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:06:30,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:30,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:06:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:30,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:06:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:30,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:06:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:30,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:06:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:30,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:06:30,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:30,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:06:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:30,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-17 15:06:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:30,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-17 15:06:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:30,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-17 15:06:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:30,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-17 15:06:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:30,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-17 15:06:30,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:30,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-17 15:06:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:30,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-17 15:06:30,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:30,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-17 15:06:30,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:30,403 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:06:30,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:06:30,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653916671] [2021-12-17 15:06:30,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653916671] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:06:30,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:06:30,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:06:30,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278224359] [2021-12-17 15:06:30,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:06:30,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:06:30,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:06:30,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:06:30,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:06:30,406 INFO L87 Difference]: Start difference. First operand 12827 states and 21977 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:06:32,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:06:32,430 INFO L93 Difference]: Finished difference Result 30986 states and 53617 transitions. [2021-12-17 15:06:32,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:06:32,430 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 136 [2021-12-17 15:06:32,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:06:32,491 INFO L225 Difference]: With dead ends: 30986 [2021-12-17 15:06:32,492 INFO L226 Difference]: Without dead ends: 20382 [2021-12-17 15:06:32,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:06:32,516 INFO L933 BasicCegarLoop]: 817 mSDtfsCounter, 1839 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 829 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1857 SdHoareTripleChecker+Valid, 1768 SdHoareTripleChecker+Invalid, 2143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 829 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:06:32,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1857 Valid, 1768 Invalid, 2143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [829 Valid, 1314 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-17 15:06:32,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20382 states. [2021-12-17 15:06:33,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20382 to 20140. [2021-12-17 15:06:33,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20140 states, 16815 states have (on average 1.6206958073148974) internal successors, (27252), 16823 states have internal predecessors, (27252), 3291 states have call successors, (3291), 29 states have call predecessors, (3291), 33 states have return successors, (3630), 3289 states have call predecessors, (3630), 3290 states have call successors, (3630) [2021-12-17 15:06:33,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20140 states to 20140 states and 34173 transitions. [2021-12-17 15:06:33,607 INFO L78 Accepts]: Start accepts. Automaton has 20140 states and 34173 transitions. Word has length 136 [2021-12-17 15:06:33,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:06:33,608 INFO L470 AbstractCegarLoop]: Abstraction has 20140 states and 34173 transitions. [2021-12-17 15:06:33,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:06:33,608 INFO L276 IsEmpty]: Start isEmpty. Operand 20140 states and 34173 transitions. [2021-12-17 15:06:33,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-17 15:06:33,629 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:06:33,629 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:06:33,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-17 15:06:33,629 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:06:33,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:06:33,630 INFO L85 PathProgramCache]: Analyzing trace with hash -2047230127, now seen corresponding path program 1 times [2021-12-17 15:06:33,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:06:33,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347288532] [2021-12-17 15:06:33,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:33,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:06:33,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:33,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:06:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:33,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:06:33,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:33,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:06:33,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:33,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:06:33,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:33,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:06:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:33,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:06:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:33,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-17 15:06:33,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:33,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-17 15:06:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:33,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-17 15:06:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:33,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-17 15:06:33,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:33,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 15:06:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:33,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-17 15:06:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:33,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-17 15:06:33,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:33,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-17 15:06:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:33,705 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:06:33,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:06:33,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347288532] [2021-12-17 15:06:33,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347288532] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:06:33,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:06:33,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:06:33,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245580931] [2021-12-17 15:06:33,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:06:33,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:06:33,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:06:33,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:06:33,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:06:33,707 INFO L87 Difference]: Start difference. First operand 20140 states and 34173 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:06:36,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:06:36,403 INFO L93 Difference]: Finished difference Result 53428 states and 92151 transitions. [2021-12-17 15:06:36,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:06:36,404 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 137 [2021-12-17 15:06:36,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:06:36,546 INFO L225 Difference]: With dead ends: 53428 [2021-12-17 15:06:36,546 INFO L226 Difference]: Without dead ends: 36188 [2021-12-17 15:06:36,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:06:36,646 INFO L933 BasicCegarLoop]: 831 mSDtfsCounter, 1767 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 1347 mSolverCounterSat, 833 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1786 SdHoareTripleChecker+Valid, 1776 SdHoareTripleChecker+Invalid, 2180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 833 IncrementalHoareTripleChecker+Valid, 1347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 15:06:36,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1786 Valid, 1776 Invalid, 2180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [833 Valid, 1347 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 15:06:36,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36188 states. [2021-12-17 15:06:38,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36188 to 35946. [2021-12-17 15:06:38,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35946 states, 30171 states have (on average 1.6179112392694972) internal successors, (48814), 30179 states have internal predecessors, (48814), 5741 states have call successors, (5741), 29 states have call predecessors, (5741), 33 states have return successors, (6354), 5739 states have call predecessors, (6354), 5740 states have call successors, (6354) [2021-12-17 15:06:38,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35946 states to 35946 states and 60909 transitions. [2021-12-17 15:06:38,745 INFO L78 Accepts]: Start accepts. Automaton has 35946 states and 60909 transitions. Word has length 137 [2021-12-17 15:06:38,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:06:38,746 INFO L470 AbstractCegarLoop]: Abstraction has 35946 states and 60909 transitions. [2021-12-17 15:06:38,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:06:38,746 INFO L276 IsEmpty]: Start isEmpty. Operand 35946 states and 60909 transitions. [2021-12-17 15:06:38,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-17 15:06:38,772 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:06:38,772 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:06:38,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-17 15:06:38,772 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:06:38,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:06:38,773 INFO L85 PathProgramCache]: Analyzing trace with hash 253409376, now seen corresponding path program 1 times [2021-12-17 15:06:38,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:06:38,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283868931] [2021-12-17 15:06:38,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:38,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:06:38,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:38,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:06:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:38,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:06:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:38,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:06:38,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:38,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:06:38,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:38,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:06:38,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:38,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:06:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:38,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 15:06:38,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:38,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-17 15:06:38,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:38,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-17 15:06:38,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:38,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-17 15:06:38,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:38,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-17 15:06:38,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:38,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-17 15:06:38,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:38,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-17 15:06:38,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:38,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-17 15:06:38,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:38,851 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:06:38,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:06:38,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283868931] [2021-12-17 15:06:38,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283868931] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:06:38,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:06:38,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:06:38,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967893299] [2021-12-17 15:06:38,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:06:38,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:06:38,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:06:38,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:06:38,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:06:38,853 INFO L87 Difference]: Start difference. First operand 35946 states and 60909 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:06:42,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:06:42,587 INFO L93 Difference]: Finished difference Result 98275 states and 168710 transitions. [2021-12-17 15:06:42,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:06:42,588 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 138 [2021-12-17 15:06:42,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:06:42,838 INFO L225 Difference]: With dead ends: 98275 [2021-12-17 15:06:42,838 INFO L226 Difference]: Without dead ends: 66185 [2021-12-17 15:06:42,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:06:42,910 INFO L933 BasicCegarLoop]: 790 mSDtfsCounter, 1861 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 1290 mSolverCounterSat, 861 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1881 SdHoareTripleChecker+Valid, 1737 SdHoareTripleChecker+Invalid, 2151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 861 IncrementalHoareTripleChecker+Valid, 1290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 15:06:42,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1881 Valid, 1737 Invalid, 2151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [861 Valid, 1290 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 15:06:42,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66185 states. [2021-12-17 15:06:45,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66185 to 65943. [2021-12-17 15:06:45,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65943 states, 55655 states have (on average 1.613996945467613) internal successors, (89827), 55663 states have internal predecessors, (89827), 10254 states have call successors, (10254), 29 states have call predecessors, (10254), 33 states have return successors, (11399), 10252 states have call predecessors, (11399), 10253 states have call successors, (11399) [2021-12-17 15:06:46,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65943 states to 65943 states and 111480 transitions. [2021-12-17 15:06:46,043 INFO L78 Accepts]: Start accepts. Automaton has 65943 states and 111480 transitions. Word has length 138 [2021-12-17 15:06:46,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:06:46,044 INFO L470 AbstractCegarLoop]: Abstraction has 65943 states and 111480 transitions. [2021-12-17 15:06:46,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:06:46,044 INFO L276 IsEmpty]: Start isEmpty. Operand 65943 states and 111480 transitions. [2021-12-17 15:06:46,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-12-17 15:06:46,073 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:06:46,073 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:06:46,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-17 15:06:46,073 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:06:46,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:06:46,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1496473903, now seen corresponding path program 1 times [2021-12-17 15:06:46,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:06:46,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807440354] [2021-12-17 15:06:46,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:46,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:06:46,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:46,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:06:46,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:46,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:06:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:46,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:06:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:46,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:06:46,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:46,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:06:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:46,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:06:46,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:46,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-17 15:06:46,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:46,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-17 15:06:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:46,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 15:06:46,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:46,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-17 15:06:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:46,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-17 15:06:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:46,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-17 15:06:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:46,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-17 15:06:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:46,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-17 15:06:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:46,138 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:06:46,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:06:46,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807440354] [2021-12-17 15:06:46,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807440354] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:06:46,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:06:46,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:06:46,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539018963] [2021-12-17 15:06:46,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:06:46,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:06:46,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:06:46,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:06:46,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:06:46,140 INFO L87 Difference]: Start difference. First operand 65943 states and 111480 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:06:51,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:06:51,447 INFO L93 Difference]: Finished difference Result 123936 states and 213143 transitions. [2021-12-17 15:06:51,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:06:51,447 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 139 [2021-12-17 15:06:51,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:06:52,095 INFO L225 Difference]: With dead ends: 123936 [2021-12-17 15:06:52,096 INFO L226 Difference]: Without dead ends: 123673 [2021-12-17 15:06:52,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:06:52,143 INFO L933 BasicCegarLoop]: 851 mSDtfsCounter, 1732 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 794 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1751 SdHoareTripleChecker+Valid, 1808 SdHoareTripleChecker+Invalid, 2172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 794 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:06:52,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1751 Valid, 1808 Invalid, 2172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [794 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-17 15:06:52,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123673 states. [2021-12-17 15:06:57,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123673 to 123431. [2021-12-17 15:06:57,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123431 states, 104775 states have (on average 1.6089620615604867) internal successors, (168579), 104783 states have internal predecessors, (168579), 18622 states have call successors, (18622), 29 states have call predecessors, (18622), 33 states have return successors, (20813), 18620 states have call predecessors, (20813), 18621 states have call successors, (20813) [2021-12-17 15:06:58,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123431 states to 123431 states and 208014 transitions. [2021-12-17 15:06:58,203 INFO L78 Accepts]: Start accepts. Automaton has 123431 states and 208014 transitions. Word has length 139 [2021-12-17 15:06:58,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:06:58,203 INFO L470 AbstractCegarLoop]: Abstraction has 123431 states and 208014 transitions. [2021-12-17 15:06:58,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:06:58,204 INFO L276 IsEmpty]: Start isEmpty. Operand 123431 states and 208014 transitions. [2021-12-17 15:06:58,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-12-17 15:06:58,256 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:06:58,256 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:06:58,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-17 15:06:58,256 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:06:58,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:06:58,257 INFO L85 PathProgramCache]: Analyzing trace with hash 397812833, now seen corresponding path program 1 times [2021-12-17 15:06:58,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:06:58,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103145549] [2021-12-17 15:06:58,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:58,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:06:58,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:58,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:06:58,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:58,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:06:58,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:58,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:06:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:58,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:06:58,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:58,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:06:58,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:58,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:06:58,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:58,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 15:06:58,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:58,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-17 15:06:58,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:58,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-17 15:06:58,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:58,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-17 15:06:58,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:58,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-17 15:06:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:58,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-17 15:06:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:58,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-17 15:06:58,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:58,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-17 15:06:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:58,542 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:06:58,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:06:58,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103145549] [2021-12-17 15:06:58,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103145549] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:06:58,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:06:58,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-12-17 15:06:58,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209819849] [2021-12-17 15:06:58,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:06:58,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-17 15:06:58,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:06:58,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-17 15:06:58,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-12-17 15:06:58,544 INFO L87 Difference]: Start difference. First operand 123431 states and 208014 transitions. Second operand has 18 states, 16 states have (on average 6.0) internal successors, (96), 12 states have internal predecessors, (96), 6 states have call successors, (17), 7 states have call predecessors, (17), 4 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2021-12-17 15:07:15,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:15,625 INFO L93 Difference]: Finished difference Result 247113 states and 428364 transitions. [2021-12-17 15:07:15,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-12-17 15:07:15,625 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 6.0) internal successors, (96), 12 states have internal predecessors, (96), 6 states have call successors, (17), 7 states have call predecessors, (17), 4 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 140 [2021-12-17 15:07:15,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:16,933 INFO L225 Difference]: With dead ends: 247113 [2021-12-17 15:07:16,933 INFO L226 Difference]: Without dead ends: 246856 [2021-12-17 15:07:17,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1391 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=838, Invalid=3718, Unknown=0, NotChecked=0, Total=4556 [2021-12-17 15:07:17,033 INFO L933 BasicCegarLoop]: 886 mSDtfsCounter, 6150 mSDsluCounter, 3963 mSDsCounter, 0 mSdLazyCounter, 14429 mSolverCounterSat, 3792 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6165 SdHoareTripleChecker+Valid, 4849 SdHoareTripleChecker+Invalid, 18221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3792 IncrementalHoareTripleChecker+Valid, 14429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:17,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6165 Valid, 4849 Invalid, 18221 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3792 Valid, 14429 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2021-12-17 15:07:17,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246856 states.