./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec9_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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_product26.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 82ac70e4cab6ba17956a8bc3031bcd401426df4beecacca096cae721fbfd8afd --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 00:54:02,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 00:54:02,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 00:54:03,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 00:54:03,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 00:54:03,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 00:54:03,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 00:54:03,022 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 00:54:03,023 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 00:54:03,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 00:54:03,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 00:54:03,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 00:54:03,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 00:54:03,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 00:54:03,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 00:54:03,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 00:54:03,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 00:54:03,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 00:54:03,045 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 00:54:03,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 00:54:03,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 00:54:03,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 00:54:03,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 00:54:03,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 00:54:03,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 00:54:03,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 00:54:03,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 00:54:03,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 00:54:03,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 00:54:03,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 00:54:03,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 00:54:03,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 00:54:03,061 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 00:54:03,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 00:54:03,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 00:54:03,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 00:54:03,063 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 00:54:03,063 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 00:54:03,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 00:54:03,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 00:54:03,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 00:54:03,068 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-28 00:54:03,095 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 00:54:03,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 00:54:03,096 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 00:54:03,097 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 00:54:03,097 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 00:54:03,097 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 00:54:03,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 00:54:03,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 00:54:03,099 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 00:54:03,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 00:54:03,099 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 00:54:03,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 00:54:03,100 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 00:54:03,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 00:54:03,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 00:54:03,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 00:54:03,100 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 00:54:03,100 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 00:54:03,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 00:54:03,101 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 00:54:03,101 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 00:54:03,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 00:54:03,101 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 00:54:03,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 00:54:03,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 00:54:03,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 00:54:03,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 00:54:03,102 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 00:54:03,102 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 00:54:03,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 00:54:03,102 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 00:54:03,102 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 00:54:03,103 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 00:54:03,103 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82ac70e4cab6ba17956a8bc3031bcd401426df4beecacca096cae721fbfd8afd [2021-12-28 00:54:03,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 00:54:03,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 00:54:03,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 00:54:03,388 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 00:54:03,389 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 00:54:03,389 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec9_product26.cil.c [2021-12-28 00:54:03,440 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d1795ce5/12ec246f393d420e8d9b5d757b822e58/FLAGc2a04796f [2021-12-28 00:54:03,800 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 00:54:03,800 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec9_product26.cil.c [2021-12-28 00:54:03,812 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d1795ce5/12ec246f393d420e8d9b5d757b822e58/FLAGc2a04796f [2021-12-28 00:54:04,176 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d1795ce5/12ec246f393d420e8d9b5d757b822e58 [2021-12-28 00:54:04,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 00:54:04,180 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 00:54:04,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 00:54:04,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 00:54:04,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 00:54:04,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 12:54:04" (1/1) ... [2021-12-28 00:54:04,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f473e60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:54:04, skipping insertion in model container [2021-12-28 00:54:04,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 12:54:04" (1/1) ... [2021-12-28 00:54:04,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 00:54:04,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 00:54:04,489 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_product26.cil.c[24949,24962] [2021-12-28 00:54:04,563 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 00:54:04,571 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 00:54:04,606 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_product26.cil.c[24949,24962] [2021-12-28 00:54:04,651 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 00:54:04,672 INFO L208 MainTranslator]: Completed translation [2021-12-28 00:54:04,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:54:04 WrapperNode [2021-12-28 00:54:04,672 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 00:54:04,673 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 00:54:04,673 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 00:54:04,674 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 00:54:04,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:54:04" (1/1) ... [2021-12-28 00:54:04,694 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:54:04" (1/1) ... [2021-12-28 00:54:04,729 INFO L137 Inliner]: procedures = 132, calls = 230, calls flagged for inlining = 61, calls inlined = 58, statements flattened = 1109 [2021-12-28 00:54:04,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 00:54:04,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 00:54:04,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 00:54:04,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 00:54:04,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:54:04" (1/1) ... [2021-12-28 00:54:04,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:54:04" (1/1) ... [2021-12-28 00:54:04,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:54:04" (1/1) ... [2021-12-28 00:54:04,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:54:04" (1/1) ... [2021-12-28 00:54:04,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:54:04" (1/1) ... [2021-12-28 00:54:04,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:54:04" (1/1) ... [2021-12-28 00:54:04,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:54:04" (1/1) ... [2021-12-28 00:54:04,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 00:54:04,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 00:54:04,811 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 00:54:04,811 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 00:54:04,817 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:54:04" (1/1) ... [2021-12-28 00:54:04,823 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 00:54:04,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:54:04,840 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) [2021-12-28 00:54:04,858 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 [2021-12-28 00:54:04,873 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-28 00:54:04,873 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-28 00:54:04,873 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-12-28 00:54:04,873 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-12-28 00:54:04,873 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-28 00:54:04,873 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-28 00:54:04,874 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-12-28 00:54:04,874 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-12-28 00:54:04,874 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-28 00:54:04,874 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-28 00:54:04,874 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2021-12-28 00:54:04,874 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2021-12-28 00:54:04,875 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-28 00:54:04,875 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-28 00:54:04,875 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-28 00:54:04,875 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-28 00:54:04,875 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-12-28 00:54:04,875 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-12-28 00:54:04,875 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-28 00:54:04,875 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-28 00:54:04,875 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-28 00:54:04,876 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-28 00:54:04,876 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-28 00:54:04,876 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2021-12-28 00:54:04,876 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2021-12-28 00:54:04,876 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-28 00:54:04,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-28 00:54:04,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 00:54:04,876 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-28 00:54:04,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-28 00:54:04,877 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-28 00:54:04,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-28 00:54:04,877 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-28 00:54:04,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-28 00:54:04,877 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-28 00:54:04,877 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-28 00:54:04,878 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-28 00:54:04,878 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-28 00:54:04,878 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-12-28 00:54:04,878 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-12-28 00:54:04,878 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-28 00:54:04,878 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-28 00:54:04,878 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-28 00:54:04,878 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-28 00:54:04,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 00:54:04,879 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-28 00:54:04,879 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-28 00:54:04,879 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-28 00:54:04,879 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-28 00:54:04,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 00:54:04,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 00:54:05,077 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 00:54:05,078 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 00:54:05,694 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 00:54:05,708 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 00:54:05,709 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 00:54:05,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 12:54:05 BoogieIcfgContainer [2021-12-28 00:54:05,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 00:54:05,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 00:54:05,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 00:54:05,715 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 00:54:05,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 12:54:04" (1/3) ... [2021-12-28 00:54:05,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e990047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 12:54:05, skipping insertion in model container [2021-12-28 00:54:05,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:54:04" (2/3) ... [2021-12-28 00:54:05,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e990047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 12:54:05, skipping insertion in model container [2021-12-28 00:54:05,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 12:54:05" (3/3) ... [2021-12-28 00:54:05,717 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec9_product26.cil.c [2021-12-28 00:54:05,721 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 00:54:05,721 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 00:54:05,756 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 00:54:05,761 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 [2021-12-28 00:54:05,761 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 00:54:05,787 INFO L276 IsEmpty]: Start isEmpty. Operand has 400 states, 313 states have (on average 1.5623003194888179) internal successors, (489), 318 states have internal predecessors, (489), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2021-12-28 00:54:05,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-28 00:54:05,799 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:05,801 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] [2021-12-28 00:54:05,802 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:05,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:05,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1772077766, now seen corresponding path program 1 times [2021-12-28 00:54:05,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:05,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682034040] [2021-12-28 00:54:05,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:05,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:54:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:54:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:54:06,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 00:54:06,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 00:54:06,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 00:54:06,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 00:54:06,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 00:54:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 00:54:06,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,232 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-28 00:54:06,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:06,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682034040] [2021-12-28 00:54:06,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682034040] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:54:06,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983012420] [2021-12-28 00:54:06,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:06,234 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:54:06,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:54:06,236 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) [2021-12-28 00:54:06,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-28 00:54:06,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 1049 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-28 00:54:06,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:54:06,746 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-28 00:54:06,746 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:54:06,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983012420] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:06,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:54:06,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-28 00:54:06,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218793126] [2021-12-28 00:54:06,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:06,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-28 00:54:06,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:06,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-28 00:54:06,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:54:06,772 INFO L87 Difference]: Start difference. First operand has 400 states, 313 states have (on average 1.5623003194888179) internal successors, (489), 318 states have internal predecessors, (489), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:06,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:06,811 INFO L93 Difference]: Finished difference Result 602 states and 908 transitions. [2021-12-28 00:54:06,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-28 00:54:06,813 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2021-12-28 00:54:06,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:06,823 INFO L225 Difference]: With dead ends: 602 [2021-12-28 00:54:06,823 INFO L226 Difference]: Without dead ends: 393 [2021-12-28 00:54:06,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:54:06,831 INFO L933 BasicCegarLoop]: 609 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, 609 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 [2021-12-28 00:54:06,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:54:06,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2021-12-28 00:54:06,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2021-12-28 00:54:06,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 307 states have (on average 1.5570032573289903) internal successors, (478), 311 states have internal predecessors, (478), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2021-12-28 00:54:06,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 601 transitions. [2021-12-28 00:54:06,878 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 601 transitions. Word has length 98 [2021-12-28 00:54:06,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:06,880 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 601 transitions. [2021-12-28 00:54:06,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:06,880 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 601 transitions. [2021-12-28 00:54:06,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-28 00:54:06,884 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:06,884 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:54:06,904 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-28 00:54:07,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-28 00:54:07,104 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:07,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:07,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1213717743, now seen corresponding path program 1 times [2021-12-28 00:54:07,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:07,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167104660] [2021-12-28 00:54:07,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:07,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:07,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:07,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:07,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:07,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:54:07,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:07,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:54:07,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:07,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:54:07,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:07,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-28 00:54:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:07,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 00:54:07,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:07,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 00:54:07,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:07,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 00:54:07,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:07,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 00:54:07,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:07,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 00:54:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:07,285 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-28 00:54:07,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:07,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167104660] [2021-12-28 00:54:07,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167104660] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:54:07,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504359840] [2021-12-28 00:54:07,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:07,286 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:54:07,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:54:07,287 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) [2021-12-28 00:54:07,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-28 00:54:07,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:07,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 1050 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-28 00:54:07,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:54:07,627 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-28 00:54:07,628 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:54:07,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504359840] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:07,628 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:54:07,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-28 00:54:07,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539341627] [2021-12-28 00:54:07,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:07,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 00:54:07,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:07,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 00:54:07,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:54:07,630 INFO L87 Difference]: Start difference. First operand 393 states and 601 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:07,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:07,655 INFO L93 Difference]: Finished difference Result 592 states and 886 transitions. [2021-12-28 00:54:07,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 00:54:07,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 99 [2021-12-28 00:54:07,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:07,659 INFO L225 Difference]: With dead ends: 592 [2021-12-28 00:54:07,659 INFO L226 Difference]: Without dead ends: 396 [2021-12-28 00:54:07,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:54:07,662 INFO L933 BasicCegarLoop]: 599 mSDtfsCounter, 1 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1196 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 [2021-12-28 00:54:07,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1196 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:54:07,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2021-12-28 00:54:07,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 395. [2021-12-28 00:54:07,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 309 states have (on average 1.5533980582524272) internal successors, (480), 313 states have internal predecessors, (480), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2021-12-28 00:54:07,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 603 transitions. [2021-12-28 00:54:07,692 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 603 transitions. Word has length 99 [2021-12-28 00:54:07,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:07,693 INFO L470 AbstractCegarLoop]: Abstraction has 395 states and 603 transitions. [2021-12-28 00:54:07,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:07,693 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 603 transitions. [2021-12-28 00:54:07,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-28 00:54:07,695 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:07,696 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] [2021-12-28 00:54:07,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-28 00:54:07,916 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 [2021-12-28 00:54:07,916 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:07,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:07,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1440636413, now seen corresponding path program 1 times [2021-12-28 00:54:07,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:07,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315819658] [2021-12-28 00:54:07,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:07,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:07,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:07,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:07,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:07,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:07,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:07,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:07,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:07,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:54:07,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:07,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:54:07,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:07,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:54:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-28 00:54:08,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 00:54:08,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 00:54:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 00:54:08,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-28 00:54:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-28 00:54:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,029 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 00:54:08,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:08,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315819658] [2021-12-28 00:54:08,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315819658] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:54:08,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694655327] [2021-12-28 00:54:08,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:08,031 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:54:08,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:54:08,032 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) [2021-12-28 00:54:08,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-28 00:54:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-28 00:54:08,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:54:08,355 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-28 00:54:08,355 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:54:08,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694655327] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:08,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:54:08,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-28 00:54:08,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132220735] [2021-12-28 00:54:08,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:08,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 00:54:08,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:08,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 00:54:08,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:54:08,357 INFO L87 Difference]: Start difference. First operand 395 states and 603 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:08,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:08,388 INFO L93 Difference]: Finished difference Result 843 states and 1306 transitions. [2021-12-28 00:54:08,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 00:54:08,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2021-12-28 00:54:08,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:08,391 INFO L225 Difference]: With dead ends: 843 [2021-12-28 00:54:08,391 INFO L226 Difference]: Without dead ends: 475 [2021-12-28 00:54:08,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:54:08,393 INFO L933 BasicCegarLoop]: 623 mSDtfsCounter, 142 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1176 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 [2021-12-28 00:54:08,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 1176 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:54:08,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2021-12-28 00:54:08,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 467. [2021-12-28 00:54:08,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 367 states have (on average 1.5722070844686649) internal successors, (577), 371 states have internal predecessors, (577), 76 states have call successors, (76), 23 states have call predecessors, (76), 23 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2021-12-28 00:54:08,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 728 transitions. [2021-12-28 00:54:08,409 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 728 transitions. Word has length 108 [2021-12-28 00:54:08,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:08,410 INFO L470 AbstractCegarLoop]: Abstraction has 467 states and 728 transitions. [2021-12-28 00:54:08,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:08,410 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 728 transitions. [2021-12-28 00:54:08,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-28 00:54:08,412 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:08,412 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] [2021-12-28 00:54:08,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-28 00:54:08,630 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 [2021-12-28 00:54:08,630 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:08,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:08,631 INFO L85 PathProgramCache]: Analyzing trace with hash 630003650, now seen corresponding path program 1 times [2021-12-28 00:54:08,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:08,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894286534] [2021-12-28 00:54:08,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:08,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:08,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:08,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:08,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:54:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:54:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:54:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 00:54:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 00:54:08,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 00:54:08,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 00:54:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 00:54:08,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-28 00:54:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,737 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 00:54:08,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:08,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894286534] [2021-12-28 00:54:08,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894286534] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:54:08,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836570785] [2021-12-28 00:54:08,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:08,738 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:54:08,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:54:08,739 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) [2021-12-28 00:54:08,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-28 00:54:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-28 00:54:08,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:54:09,144 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-28 00:54:09,144 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:54:09,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836570785] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:09,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:54:09,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-28 00:54:09,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766841358] [2021-12-28 00:54:09,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:09,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 00:54:09,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:09,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 00:54:09,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-28 00:54:09,148 INFO L87 Difference]: Start difference. First operand 467 states and 728 transitions. Second operand has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:54:09,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:09,222 INFO L93 Difference]: Finished difference Result 925 states and 1446 transitions. [2021-12-28 00:54:09,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 00:54:09,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 109 [2021-12-28 00:54:09,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:09,226 INFO L225 Difference]: With dead ends: 925 [2021-12-28 00:54:09,228 INFO L226 Difference]: Without dead ends: 469 [2021-12-28 00:54:09,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:09,233 INFO L933 BasicCegarLoop]: 592 mSDtfsCounter, 160 mSDsluCounter, 1594 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 2186 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 [2021-12-28 00:54:09,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 2186 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:54:09,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2021-12-28 00:54:09,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2021-12-28 00:54:09,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 368 states have (on average 1.5706521739130435) internal successors, (578), 373 states have internal predecessors, (578), 76 states have call successors, (76), 23 states have call predecessors, (76), 24 states have return successors, (77), 74 states have call predecessors, (77), 75 states have call successors, (77) [2021-12-28 00:54:09,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 731 transitions. [2021-12-28 00:54:09,261 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 731 transitions. Word has length 109 [2021-12-28 00:54:09,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:09,263 INFO L470 AbstractCegarLoop]: Abstraction has 469 states and 731 transitions. [2021-12-28 00:54:09,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:54:09,263 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 731 transitions. [2021-12-28 00:54:09,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-28 00:54:09,266 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:09,266 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] [2021-12-28 00:54:09,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-28 00:54:09,484 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 [2021-12-28 00:54:09,485 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:09,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:09,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1737380185, now seen corresponding path program 1 times [2021-12-28 00:54:09,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:09,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751272921] [2021-12-28 00:54:09,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:09,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:09,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:09,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:09,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:09,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:09,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:09,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:09,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:09,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-28 00:54:09,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:09,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-28 00:54:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:09,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 00:54:09,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:09,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 00:54:09,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:09,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 00:54:09,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:09,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 00:54:09,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:09,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 00:54:09,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:09,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 00:54:09,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:09,607 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-28 00:54:09,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:09,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751272921] [2021-12-28 00:54:09,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751272921] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:54:09,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143731443] [2021-12-28 00:54:09,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:09,608 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:54:09,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:54:09,609 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) [2021-12-28 00:54:09,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-28 00:54:09,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:09,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 1085 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-28 00:54:09,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:54:09,971 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-28 00:54:09,971 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:54:09,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143731443] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:09,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:54:09,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-28 00:54:09,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668433733] [2021-12-28 00:54:09,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:09,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 00:54:09,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:09,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 00:54:09,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-28 00:54:09,973 INFO L87 Difference]: Start difference. First operand 469 states and 731 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:54:10,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:10,023 INFO L93 Difference]: Finished difference Result 927 states and 1451 transitions. [2021-12-28 00:54:10,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 00:54:10,023 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 110 [2021-12-28 00:54:10,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:10,026 INFO L225 Difference]: With dead ends: 927 [2021-12-28 00:54:10,026 INFO L226 Difference]: Without dead ends: 471 [2021-12-28 00:54:10,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-12-28 00:54:10,028 INFO L933 BasicCegarLoop]: 590 mSDtfsCounter, 159 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2175 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 [2021-12-28 00:54:10,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 2175 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:54:10,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2021-12-28 00:54:10,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2021-12-28 00:54:10,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 369 states have (on average 1.5691056910569106) internal successors, (579), 375 states have internal predecessors, (579), 76 states have call successors, (76), 23 states have call predecessors, (76), 25 states have return successors, (82), 74 states have call predecessors, (82), 75 states have call successors, (82) [2021-12-28 00:54:10,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 737 transitions. [2021-12-28 00:54:10,042 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 737 transitions. Word has length 110 [2021-12-28 00:54:10,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:10,043 INFO L470 AbstractCegarLoop]: Abstraction has 471 states and 737 transitions. [2021-12-28 00:54:10,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:54:10,043 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 737 transitions. [2021-12-28 00:54:10,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-28 00:54:10,045 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:10,045 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] [2021-12-28 00:54:10,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-28 00:54:10,254 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 [2021-12-28 00:54:10,255 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:10,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:10,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1454142977, now seen corresponding path program 1 times [2021-12-28 00:54:10,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:10,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133347037] [2021-12-28 00:54:10,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:10,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:10,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 00:54:10,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-28 00:54:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-28 00:54:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 00:54:10,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 00:54:10,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 00:54:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 00:54:10,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,364 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 00:54:10,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:10,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133347037] [2021-12-28 00:54:10,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133347037] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:10,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:10,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 00:54:10,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903513846] [2021-12-28 00:54:10,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:10,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 00:54:10,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:10,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 00:54:10,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:54:10,366 INFO L87 Difference]: Start difference. First operand 471 states and 737 transitions. Second operand has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:54:12,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:12,120 INFO L93 Difference]: Finished difference Result 1112 states and 1766 transitions. [2021-12-28 00:54:12,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-28 00:54:12,120 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 111 [2021-12-28 00:54:12,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:12,126 INFO L225 Difference]: With dead ends: 1112 [2021-12-28 00:54:12,126 INFO L226 Difference]: Without dead ends: 664 [2021-12-28 00:54:12,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-28 00:54:12,128 INFO L933 BasicCegarLoop]: 725 mSDtfsCounter, 1460 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 2583 mSolverCounterSat, 577 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 1759 SdHoareTripleChecker+Invalid, 3160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 577 IncrementalHoareTripleChecker+Valid, 2583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:12,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1480 Valid, 1759 Invalid, 3160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [577 Valid, 2583 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-28 00:54:12,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2021-12-28 00:54:12,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 471. [2021-12-28 00:54:12,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 369 states have (on average 1.5691056910569106) internal successors, (579), 375 states have internal predecessors, (579), 76 states have call successors, (76), 23 states have call predecessors, (76), 25 states have return successors, (81), 74 states have call predecessors, (81), 75 states have call successors, (81) [2021-12-28 00:54:12,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 736 transitions. [2021-12-28 00:54:12,157 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 736 transitions. Word has length 111 [2021-12-28 00:54:12,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:12,158 INFO L470 AbstractCegarLoop]: Abstraction has 471 states and 736 transitions. [2021-12-28 00:54:12,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:54:12,158 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 736 transitions. [2021-12-28 00:54:12,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-28 00:54:12,160 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:12,160 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] [2021-12-28 00:54:12,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 00:54:12,160 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:12,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:12,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1166401654, now seen corresponding path program 2 times [2021-12-28 00:54:12,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:12,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686632711] [2021-12-28 00:54:12,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:12,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:12,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:12,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:12,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:12,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:12,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:12,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:12,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:12,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 00:54:12,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:12,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 00:54:12,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:12,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 00:54:12,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:12,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-28 00:54:12,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:12,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 00:54:12,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:12,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 00:54:12,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:12,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 00:54:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:12,250 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 00:54:12,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:12,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686632711] [2021-12-28 00:54:12,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686632711] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:12,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:12,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 00:54:12,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456343898] [2021-12-28 00:54:12,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:12,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 00:54:12,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:12,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 00:54:12,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:54:12,252 INFO L87 Difference]: Start difference. First operand 471 states and 736 transitions. Second operand has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:54:13,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:13,964 INFO L93 Difference]: Finished difference Result 1114 states and 1769 transitions. [2021-12-28 00:54:13,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-28 00:54:13,964 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 112 [2021-12-28 00:54:13,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:13,968 INFO L225 Difference]: With dead ends: 1114 [2021-12-28 00:54:13,968 INFO L226 Difference]: Without dead ends: 666 [2021-12-28 00:54:13,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-28 00:54:13,970 INFO L933 BasicCegarLoop]: 724 mSDtfsCounter, 1459 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 2557 mSolverCounterSat, 592 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 1758 SdHoareTripleChecker+Invalid, 3149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 592 IncrementalHoareTripleChecker+Valid, 2557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:13,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1480 Valid, 1758 Invalid, 3149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [592 Valid, 2557 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-28 00:54:13,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2021-12-28 00:54:13,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 473. [2021-12-28 00:54:13,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 370 states have (on average 1.5675675675675675) internal successors, (580), 377 states have internal predecessors, (580), 76 states have call successors, (76), 23 states have call predecessors, (76), 26 states have return successors, (83), 74 states have call predecessors, (83), 75 states have call successors, (83) [2021-12-28 00:54:13,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 739 transitions. [2021-12-28 00:54:13,995 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 739 transitions. Word has length 112 [2021-12-28 00:54:13,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:13,996 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 739 transitions. [2021-12-28 00:54:13,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:54:13,997 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 739 transitions. [2021-12-28 00:54:13,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-28 00:54:13,998 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:13,999 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] [2021-12-28 00:54:13,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 00:54:13,999 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:13,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:13,999 INFO L85 PathProgramCache]: Analyzing trace with hash 904019238, now seen corresponding path program 1 times [2021-12-28 00:54:14,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:14,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843265974] [2021-12-28 00:54:14,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:14,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:14,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:14,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:14,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:14,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:14,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:14,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:14,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:14,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:14,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:14,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 00:54:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:14,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 00:54:14,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:14,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 00:54:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:14,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-28 00:54:14,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:14,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 00:54:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:14,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 00:54:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:14,152 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-28 00:54:14,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:14,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843265974] [2021-12-28 00:54:14,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843265974] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:14,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:14,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-28 00:54:14,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664905283] [2021-12-28 00:54:14,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:14,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 00:54:14,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:14,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 00:54:14,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-28 00:54:14,155 INFO L87 Difference]: Start difference. First operand 473 states and 739 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-28 00:54:16,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:16,560 INFO L93 Difference]: Finished difference Result 1112 states and 1764 transitions. [2021-12-28 00:54:16,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-28 00:54:16,561 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 113 [2021-12-28 00:54:16,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:16,565 INFO L225 Difference]: With dead ends: 1112 [2021-12-28 00:54:16,565 INFO L226 Difference]: Without dead ends: 666 [2021-12-28 00:54:16,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-28 00:54:16,567 INFO L933 BasicCegarLoop]: 708 mSDtfsCounter, 1605 mSDsluCounter, 1430 mSDsCounter, 0 mSdLazyCounter, 4558 mSolverCounterSat, 657 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1605 SdHoareTripleChecker+Valid, 2138 SdHoareTripleChecker+Invalid, 5215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 657 IncrementalHoareTripleChecker+Valid, 4558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:16,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1605 Valid, 2138 Invalid, 5215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [657 Valid, 4558 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-28 00:54:16,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2021-12-28 00:54:16,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 473. [2021-12-28 00:54:16,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 370 states have (on average 1.5675675675675675) internal successors, (580), 377 states have internal predecessors, (580), 76 states have call successors, (76), 23 states have call predecessors, (76), 26 states have return successors, (82), 74 states have call predecessors, (82), 75 states have call successors, (82) [2021-12-28 00:54:16,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 738 transitions. [2021-12-28 00:54:16,594 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 738 transitions. Word has length 113 [2021-12-28 00:54:16,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:16,594 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 738 transitions. [2021-12-28 00:54:16,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-28 00:54:16,595 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 738 transitions. [2021-12-28 00:54:16,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-28 00:54:16,596 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:16,596 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] [2021-12-28 00:54:16,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 00:54:16,597 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:16,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:16,597 INFO L85 PathProgramCache]: Analyzing trace with hash 335510668, now seen corresponding path program 2 times [2021-12-28 00:54:16,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:16,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564679357] [2021-12-28 00:54:16,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:16,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:16,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:16,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:16,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:16,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:16,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:16,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:16,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:16,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 00:54:16,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:16,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-28 00:54:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:16,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 00:54:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:16,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-28 00:54:16,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:16,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 00:54:16,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:16,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 00:54:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:16,725 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-28 00:54:16,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:16,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564679357] [2021-12-28 00:54:16,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564679357] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:16,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:16,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-28 00:54:16,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639603663] [2021-12-28 00:54:16,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:16,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 00:54:16,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:16,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 00:54:16,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-28 00:54:16,728 INFO L87 Difference]: Start difference. First operand 473 states and 738 transitions. Second operand has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-28 00:54:19,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:19,042 INFO L93 Difference]: Finished difference Result 1114 states and 1770 transitions. [2021-12-28 00:54:19,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-28 00:54:19,043 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 114 [2021-12-28 00:54:19,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:19,047 INFO L225 Difference]: With dead ends: 1114 [2021-12-28 00:54:19,047 INFO L226 Difference]: Without dead ends: 668 [2021-12-28 00:54:19,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-28 00:54:19,049 INFO L933 BasicCegarLoop]: 713 mSDtfsCounter, 1599 mSDsluCounter, 1430 mSDsCounter, 0 mSdLazyCounter, 4632 mSolverCounterSat, 635 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 2143 SdHoareTripleChecker+Invalid, 5267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 635 IncrementalHoareTripleChecker+Valid, 4632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:19,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1599 Valid, 2143 Invalid, 5267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [635 Valid, 4632 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-28 00:54:19,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2021-12-28 00:54:19,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 475. [2021-12-28 00:54:19,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 371 states have (on average 1.5660377358490567) internal successors, (581), 379 states have internal predecessors, (581), 76 states have call successors, (76), 23 states have call predecessors, (76), 27 states have return successors, (87), 74 states have call predecessors, (87), 75 states have call successors, (87) [2021-12-28 00:54:19,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 744 transitions. [2021-12-28 00:54:19,069 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 744 transitions. Word has length 114 [2021-12-28 00:54:19,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:19,069 INFO L470 AbstractCegarLoop]: Abstraction has 475 states and 744 transitions. [2021-12-28 00:54:19,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-28 00:54:19,070 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 744 transitions. [2021-12-28 00:54:19,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-28 00:54:19,071 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:19,071 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] [2021-12-28 00:54:19,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 00:54:19,072 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:19,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:19,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1768204843, now seen corresponding path program 1 times [2021-12-28 00:54:19,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:19,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525186142] [2021-12-28 00:54:19,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:19,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:19,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:19,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:19,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:19,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:19,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:19,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:19,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:19,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:19,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:19,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:19,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:19,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:19,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:19,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 00:54:19,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:19,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 00:54:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:19,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 00:54:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:19,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 00:54:19,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:19,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-28 00:54:19,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:19,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-28 00:54:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:19,166 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-28 00:54:19,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:19,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525186142] [2021-12-28 00:54:19,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525186142] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:54:19,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490479134] [2021-12-28 00:54:19,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:19,167 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:54:19,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:54:19,168 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) [2021-12-28 00:54:19,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-28 00:54:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:19,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 1090 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-28 00:54:19,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:54:19,533 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:19,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 00:54:19,694 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:19,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490479134] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 00:54:19,695 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 00:54:19,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2021-12-28 00:54:19,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974869249] [2021-12-28 00:54:19,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 00:54:19,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-28 00:54:19,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:19,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-28 00:54:19,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-12-28 00:54:19,698 INFO L87 Difference]: Start difference. First operand 475 states and 744 transitions. Second operand has 15 states, 14 states have (on average 9.214285714285714) internal successors, (129), 11 states have internal predecessors, (129), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2021-12-28 00:54:23,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:23,082 INFO L93 Difference]: Finished difference Result 2023 states and 3408 transitions. [2021-12-28 00:54:23,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-28 00:54:23,083 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.214285714285714) internal successors, (129), 11 states have internal predecessors, (129), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 115 [2021-12-28 00:54:23,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:23,089 INFO L225 Difference]: With dead ends: 2023 [2021-12-28 00:54:23,090 INFO L226 Difference]: Without dead ends: 1579 [2021-12-28 00:54:23,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2021-12-28 00:54:23,092 INFO L933 BasicCegarLoop]: 907 mSDtfsCounter, 4238 mSDsluCounter, 3354 mSDsCounter, 0 mSdLazyCounter, 6217 mSolverCounterSat, 1637 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4240 SdHoareTripleChecker+Valid, 4261 SdHoareTripleChecker+Invalid, 7854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1637 IncrementalHoareTripleChecker+Valid, 6217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:23,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4240 Valid, 4261 Invalid, 7854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1637 Valid, 6217 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-12-28 00:54:23,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2021-12-28 00:54:23,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 918. [2021-12-28 00:54:23,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 735 states have (on average 1.6149659863945578) internal successors, (1187), 743 states have internal predecessors, (1187), 155 states have call successors, (155), 23 states have call predecessors, (155), 27 states have return successors, (176), 153 states have call predecessors, (176), 154 states have call successors, (176) [2021-12-28 00:54:23,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1518 transitions. [2021-12-28 00:54:23,138 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1518 transitions. Word has length 115 [2021-12-28 00:54:23,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:23,138 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1518 transitions. [2021-12-28 00:54:23,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.214285714285714) internal successors, (129), 11 states have internal predecessors, (129), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2021-12-28 00:54:23,138 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1518 transitions. [2021-12-28 00:54:23,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-28 00:54:23,141 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:23,141 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] [2021-12-28 00:54:23,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-28 00:54:23,361 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 [2021-12-28 00:54:23,361 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:23,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:23,361 INFO L85 PathProgramCache]: Analyzing trace with hash -294936037, now seen corresponding path program 1 times [2021-12-28 00:54:23,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:23,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412086844] [2021-12-28 00:54:23,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:23,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:23,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:23,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:23,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:23,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:23,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:23,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:23,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:23,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:23,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:23,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 00:54:23,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:23,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 00:54:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:23,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 00:54:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:23,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 00:54:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:23,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 00:54:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:23,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-28 00:54:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:23,446 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:23,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:23,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412086844] [2021-12-28 00:54:23,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412086844] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:23,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:23,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:23,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128885529] [2021-12-28 00:54:23,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:23,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:23,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:23,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:23,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:23,448 INFO L87 Difference]: Start difference. First operand 918 states and 1518 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:24,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:24,730 INFO L93 Difference]: Finished difference Result 2374 states and 4016 transitions. [2021-12-28 00:54:24,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:24,735 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2021-12-28 00:54:24,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:24,743 INFO L225 Difference]: With dead ends: 2374 [2021-12-28 00:54:24,743 INFO L226 Difference]: Without dead ends: 1534 [2021-12-28 00:54:24,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:24,746 INFO L933 BasicCegarLoop]: 762 mSDtfsCounter, 1452 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 644 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1471 SdHoareTripleChecker+Valid, 1580 SdHoareTripleChecker+Invalid, 1972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 644 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:24,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1471 Valid, 1580 Invalid, 1972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [644 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 00:54:24,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2021-12-28 00:54:24,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 1333. [2021-12-28 00:54:24,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 1071 states have (on average 1.6311858076563959) internal successors, (1747), 1079 states have internal predecessors, (1747), 234 states have call successors, (234), 23 states have call predecessors, (234), 27 states have return successors, (265), 232 states have call predecessors, (265), 233 states have call successors, (265) [2021-12-28 00:54:24,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 2246 transitions. [2021-12-28 00:54:24,803 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 2246 transitions. Word has length 118 [2021-12-28 00:54:24,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:24,804 INFO L470 AbstractCegarLoop]: Abstraction has 1333 states and 2246 transitions. [2021-12-28 00:54:24,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:24,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 2246 transitions. [2021-12-28 00:54:24,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-28 00:54:24,808 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:24,808 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] [2021-12-28 00:54:24,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-28 00:54:24,808 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:24,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:24,809 INFO L85 PathProgramCache]: Analyzing trace with hash 7565295, now seen corresponding path program 1 times [2021-12-28 00:54:24,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:24,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050919723] [2021-12-28 00:54:24,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:24,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:24,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:24,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:24,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:24,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:24,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:24,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:24,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:24,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:24,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:24,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:24,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-28 00:54:24,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:24,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 00:54:24,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:24,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 00:54:24,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:24,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 00:54:24,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:24,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 00:54:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:24,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-28 00:54:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:24,902 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:24,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:24,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050919723] [2021-12-28 00:54:24,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050919723] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:24,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:24,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:24,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182084952] [2021-12-28 00:54:24,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:24,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:24,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:24,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:24,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:24,904 INFO L87 Difference]: Start difference. First operand 1333 states and 2246 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:26,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:26,230 INFO L93 Difference]: Finished difference Result 3413 states and 5829 transitions. [2021-12-28 00:54:26,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:26,231 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2021-12-28 00:54:26,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:26,240 INFO L225 Difference]: With dead ends: 3413 [2021-12-28 00:54:26,241 INFO L226 Difference]: Without dead ends: 2211 [2021-12-28 00:54:26,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:26,245 INFO L933 BasicCegarLoop]: 756 mSDtfsCounter, 1451 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 1323 mSolverCounterSat, 637 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 1583 SdHoareTripleChecker+Invalid, 1960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 637 IncrementalHoareTripleChecker+Valid, 1323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:26,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1469 Valid, 1583 Invalid, 1960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [637 Valid, 1323 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 00:54:26,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2211 states. [2021-12-28 00:54:26,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2211 to 2010. [2021-12-28 00:54:26,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2010 states, 1629 states have (on average 1.638428483732351) internal successors, (2669), 1637 states have internal predecessors, (2669), 353 states have call successors, (353), 23 states have call predecessors, (353), 27 states have return successors, (384), 351 states have call predecessors, (384), 352 states have call successors, (384) [2021-12-28 00:54:26,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2010 states to 2010 states and 3406 transitions. [2021-12-28 00:54:26,337 INFO L78 Accepts]: Start accepts. Automaton has 2010 states and 3406 transitions. Word has length 119 [2021-12-28 00:54:26,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:26,337 INFO L470 AbstractCegarLoop]: Abstraction has 2010 states and 3406 transitions. [2021-12-28 00:54:26,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:26,338 INFO L276 IsEmpty]: Start isEmpty. Operand 2010 states and 3406 transitions. [2021-12-28 00:54:26,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-28 00:54:26,344 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:26,344 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] [2021-12-28 00:54:26,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-28 00:54:26,344 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:26,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:26,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1246694157, now seen corresponding path program 1 times [2021-12-28 00:54:26,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:26,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938840015] [2021-12-28 00:54:26,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:26,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:26,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:26,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:26,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:26,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:26,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:26,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:26,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:26,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:26,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:26,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 00:54:26,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:26,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 00:54:26,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:26,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 00:54:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:26,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 00:54:26,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:26,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 00:54:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:26,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-28 00:54:26,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:26,412 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:26,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:26,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938840015] [2021-12-28 00:54:26,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938840015] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:26,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:26,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:26,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461836099] [2021-12-28 00:54:26,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:26,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:26,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:26,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:26,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:26,414 INFO L87 Difference]: Start difference. First operand 2010 states and 3406 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:27,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:27,755 INFO L93 Difference]: Finished difference Result 4998 states and 8608 transitions. [2021-12-28 00:54:27,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:27,755 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2021-12-28 00:54:27,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:27,768 INFO L225 Difference]: With dead ends: 4998 [2021-12-28 00:54:27,768 INFO L226 Difference]: Without dead ends: 3254 [2021-12-28 00:54:27,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:27,773 INFO L933 BasicCegarLoop]: 756 mSDtfsCounter, 1445 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 647 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1463 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 1962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 647 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:27,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1463 Valid, 1561 Invalid, 1962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [647 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 00:54:27,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3254 states. [2021-12-28 00:54:27,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3254 to 3053. [2021-12-28 00:54:27,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3053 states, 2510 states have (on average 1.6442231075697211) internal successors, (4127), 2518 states have internal predecessors, (4127), 515 states have call successors, (515), 23 states have call predecessors, (515), 27 states have return successors, (562), 513 states have call predecessors, (562), 514 states have call successors, (562) [2021-12-28 00:54:27,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3053 states to 3053 states and 5204 transitions. [2021-12-28 00:54:27,943 INFO L78 Accepts]: Start accepts. Automaton has 3053 states and 5204 transitions. Word has length 120 [2021-12-28 00:54:27,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:27,943 INFO L470 AbstractCegarLoop]: Abstraction has 3053 states and 5204 transitions. [2021-12-28 00:54:27,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:27,943 INFO L276 IsEmpty]: Start isEmpty. Operand 3053 states and 5204 transitions. [2021-12-28 00:54:27,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-28 00:54:27,951 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:27,951 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] [2021-12-28 00:54:27,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-28 00:54:27,952 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:27,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:27,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1773974226, now seen corresponding path program 1 times [2021-12-28 00:54:27,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:27,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145438982] [2021-12-28 00:54:27,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:27,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:27,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:27,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:27,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:27,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:27,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:27,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:27,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:27,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:27,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:28,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:28,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:28,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 00:54:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:28,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-28 00:54:28,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:28,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 00:54:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:28,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-28 00:54:28,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:28,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 00:54:28,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:28,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 00:54:28,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:28,024 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:28,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:28,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145438982] [2021-12-28 00:54:28,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145438982] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:28,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:28,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:28,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958738936] [2021-12-28 00:54:28,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:28,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:28,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:28,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:28,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:28,026 INFO L87 Difference]: Start difference. First operand 3053 states and 5204 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:29,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:29,448 INFO L93 Difference]: Finished difference Result 7512 states and 13023 transitions. [2021-12-28 00:54:29,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:29,449 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2021-12-28 00:54:29,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:29,468 INFO L225 Difference]: With dead ends: 7512 [2021-12-28 00:54:29,468 INFO L226 Difference]: Without dead ends: 4944 [2021-12-28 00:54:29,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:29,476 INFO L933 BasicCegarLoop]: 752 mSDtfsCounter, 1446 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 656 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 1971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 656 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:29,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1464 Valid, 1557 Invalid, 1971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [656 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 00:54:29,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4944 states. [2021-12-28 00:54:29,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4944 to 4743. [2021-12-28 00:54:29,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4743 states, 3955 states have (on average 1.6482932996207333) internal successors, (6519), 3963 states have internal predecessors, (6519), 760 states have call successors, (760), 23 states have call predecessors, (760), 27 states have return successors, (833), 758 states have call predecessors, (833), 759 states have call successors, (833) [2021-12-28 00:54:29,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4743 states to 4743 states and 8112 transitions. [2021-12-28 00:54:29,702 INFO L78 Accepts]: Start accepts. Automaton has 4743 states and 8112 transitions. Word has length 121 [2021-12-28 00:54:29,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:29,702 INFO L470 AbstractCegarLoop]: Abstraction has 4743 states and 8112 transitions. [2021-12-28 00:54:29,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:29,703 INFO L276 IsEmpty]: Start isEmpty. Operand 4743 states and 8112 transitions. [2021-12-28 00:54:29,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-28 00:54:29,743 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:29,744 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] [2021-12-28 00:54:29,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-28 00:54:29,744 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:29,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:29,744 INFO L85 PathProgramCache]: Analyzing trace with hash -117131631, now seen corresponding path program 1 times [2021-12-28 00:54:29,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:29,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868742181] [2021-12-28 00:54:29,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:29,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:29,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:29,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:29,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:29,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:29,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:29,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:29,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:29,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:29,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:29,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:29,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:29,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 00:54:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:29,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 00:54:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:29,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-28 00:54:29,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:29,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 00:54:29,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:29,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-28 00:54:29,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:29,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 00:54:29,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:29,822 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:29,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:29,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868742181] [2021-12-28 00:54:29,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868742181] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:29,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:29,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:29,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528379192] [2021-12-28 00:54:29,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:29,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:29,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:29,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:29,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:29,833 INFO L87 Difference]: Start difference. First operand 4743 states and 8112 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:31,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:31,335 INFO L93 Difference]: Finished difference Result 11713 states and 20400 transitions. [2021-12-28 00:54:31,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:31,336 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2021-12-28 00:54:31,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:31,365 INFO L225 Difference]: With dead ends: 11713 [2021-12-28 00:54:31,365 INFO L226 Difference]: Without dead ends: 7787 [2021-12-28 00:54:31,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:31,375 INFO L933 BasicCegarLoop]: 760 mSDtfsCounter, 1446 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 629 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1465 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 1969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 629 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:31,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1465 Valid, 1572 Invalid, 1969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [629 Valid, 1340 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 00:54:31,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7787 states. [2021-12-28 00:54:31,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7787 to 7586. [2021-12-28 00:54:31,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7586 states, 6305 states have (on average 1.6459952418715305) internal successors, (10378), 6313 states have internal predecessors, (10378), 1253 states have call successors, (1253), 23 states have call predecessors, (1253), 27 states have return successors, (1370), 1251 states have call predecessors, (1370), 1252 states have call successors, (1370) [2021-12-28 00:54:31,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7586 states to 7586 states and 13001 transitions. [2021-12-28 00:54:31,743 INFO L78 Accepts]: Start accepts. Automaton has 7586 states and 13001 transitions. Word has length 122 [2021-12-28 00:54:31,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:31,743 INFO L470 AbstractCegarLoop]: Abstraction has 7586 states and 13001 transitions. [2021-12-28 00:54:31,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:31,744 INFO L276 IsEmpty]: Start isEmpty. Operand 7586 states and 13001 transitions. [2021-12-28 00:54:31,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-28 00:54:31,757 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:31,757 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] [2021-12-28 00:54:31,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-28 00:54:31,757 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:31,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:31,758 INFO L85 PathProgramCache]: Analyzing trace with hash 285644202, now seen corresponding path program 1 times [2021-12-28 00:54:31,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:31,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191640720] [2021-12-28 00:54:31,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:31,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:31,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:31,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:31,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:31,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:31,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:31,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:31,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:31,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:31,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:31,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:31,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 00:54:31,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:31,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 00:54:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:31,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-28 00:54:31,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:31,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 00:54:31,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:31,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-28 00:54:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:31,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-28 00:54:31,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:31,830 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:31,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:31,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191640720] [2021-12-28 00:54:31,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191640720] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:31,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:31,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:31,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465936968] [2021-12-28 00:54:31,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:31,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:31,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:31,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:31,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:31,832 INFO L87 Difference]: Start difference. First operand 7586 states and 13001 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:33,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:33,447 INFO L93 Difference]: Finished difference Result 19328 states and 33676 transitions. [2021-12-28 00:54:33,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:33,447 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 123 [2021-12-28 00:54:33,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:33,489 INFO L225 Difference]: With dead ends: 19328 [2021-12-28 00:54:33,490 INFO L226 Difference]: Without dead ends: 12961 [2021-12-28 00:54:33,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:33,509 INFO L933 BasicCegarLoop]: 752 mSDtfsCounter, 1442 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 647 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1461 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 1962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 647 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:33,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1461 Valid, 1558 Invalid, 1962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [647 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 00:54:33,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12961 states. [2021-12-28 00:54:34,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12961 to 12760. [2021-12-28 00:54:34,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12760 states, 10657 states have (on average 1.6459604016139626) internal successors, (17541), 10665 states have internal predecessors, (17541), 2075 states have call successors, (2075), 23 states have call predecessors, (2075), 27 states have return successors, (2270), 2073 states have call predecessors, (2270), 2074 states have call successors, (2270) [2021-12-28 00:54:34,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12760 states to 12760 states and 21886 transitions. [2021-12-28 00:54:34,149 INFO L78 Accepts]: Start accepts. Automaton has 12760 states and 21886 transitions. Word has length 123 [2021-12-28 00:54:34,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:34,149 INFO L470 AbstractCegarLoop]: Abstraction has 12760 states and 21886 transitions. [2021-12-28 00:54:34,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:34,149 INFO L276 IsEmpty]: Start isEmpty. Operand 12760 states and 21886 transitions. [2021-12-28 00:54:34,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-28 00:54:34,166 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:34,166 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] [2021-12-28 00:54:34,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-28 00:54:34,166 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:34,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:34,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1444368675, now seen corresponding path program 1 times [2021-12-28 00:54:34,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:34,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795715727] [2021-12-28 00:54:34,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:34,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:34,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:34,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:34,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:34,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:34,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:34,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:34,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:34,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:34,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:34,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:34,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:34,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 00:54:34,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:34,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 00:54:34,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:34,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 00:54:34,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:34,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 00:54:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:34,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 00:54:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:34,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 00:54:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:34,246 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:34,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:34,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795715727] [2021-12-28 00:54:34,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795715727] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:34,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:34,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:34,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104689039] [2021-12-28 00:54:34,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:34,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:34,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:34,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:34,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:34,249 INFO L87 Difference]: Start difference. First operand 12760 states and 21886 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:36,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:36,224 INFO L93 Difference]: Finished difference Result 30811 states and 53376 transitions. [2021-12-28 00:54:36,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:36,224 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 124 [2021-12-28 00:54:36,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:36,288 INFO L225 Difference]: With dead ends: 30811 [2021-12-28 00:54:36,288 INFO L226 Difference]: Without dead ends: 20274 [2021-12-28 00:54:36,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:36,316 INFO L933 BasicCegarLoop]: 762 mSDtfsCounter, 1438 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 622 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 1563 SdHoareTripleChecker+Invalid, 1963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 622 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:36,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1456 Valid, 1563 Invalid, 1963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [622 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 00:54:36,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20274 states. [2021-12-28 00:54:37,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20274 to 20073. [2021-12-28 00:54:37,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20073 states, 16767 states have (on average 1.6214588179161449) internal successors, (27187), 16775 states have internal predecessors, (27187), 3278 states have call successors, (3278), 23 states have call predecessors, (3278), 27 states have return successors, (3617), 3276 states have call predecessors, (3617), 3277 states have call successors, (3617) [2021-12-28 00:54:37,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20073 states to 20073 states and 34082 transitions. [2021-12-28 00:54:37,397 INFO L78 Accepts]: Start accepts. Automaton has 20073 states and 34082 transitions. Word has length 124 [2021-12-28 00:54:37,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:37,398 INFO L470 AbstractCegarLoop]: Abstraction has 20073 states and 34082 transitions. [2021-12-28 00:54:37,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:37,398 INFO L276 IsEmpty]: Start isEmpty. Operand 20073 states and 34082 transitions. [2021-12-28 00:54:37,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-28 00:54:37,415 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:37,415 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] [2021-12-28 00:54:37,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-28 00:54:37,415 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:37,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:37,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1015474743, now seen corresponding path program 1 times [2021-12-28 00:54:37,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:37,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050288016] [2021-12-28 00:54:37,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:37,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:37,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:37,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:37,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:37,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:37,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:37,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:37,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:37,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:37,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:37,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:37,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 00:54:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:37,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-28 00:54:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:37,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-28 00:54:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:37,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 00:54:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:37,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-28 00:54:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:37,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-28 00:54:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:37,489 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:37,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:37,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050288016] [2021-12-28 00:54:37,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050288016] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:37,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:37,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:37,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210234087] [2021-12-28 00:54:37,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:37,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:37,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:37,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:37,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:37,492 INFO L87 Difference]: Start difference. First operand 20073 states and 34082 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:40,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:40,085 INFO L93 Difference]: Finished difference Result 53253 states and 91910 transitions. [2021-12-28 00:54:40,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:40,086 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2021-12-28 00:54:40,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:40,213 INFO L225 Difference]: With dead ends: 53253 [2021-12-28 00:54:40,214 INFO L226 Difference]: Without dead ends: 36080 [2021-12-28 00:54:40,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:40,258 INFO L933 BasicCegarLoop]: 758 mSDtfsCounter, 1435 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 639 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1453 SdHoareTripleChecker+Valid, 1564 SdHoareTripleChecker+Invalid, 1974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 639 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:40,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1453 Valid, 1564 Invalid, 1974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [639 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 00:54:40,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36080 states. [2021-12-28 00:54:41,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36080 to 35879. [2021-12-28 00:54:41,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35879 states, 30123 states have (on average 1.618331507485974) internal successors, (48749), 30131 states have internal predecessors, (48749), 5728 states have call successors, (5728), 23 states have call predecessors, (5728), 27 states have return successors, (6341), 5726 states have call predecessors, (6341), 5727 states have call successors, (6341) [2021-12-28 00:54:42,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35879 states to 35879 states and 60818 transitions. [2021-12-28 00:54:42,114 INFO L78 Accepts]: Start accepts. Automaton has 35879 states and 60818 transitions. Word has length 125 [2021-12-28 00:54:42,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:42,114 INFO L470 AbstractCegarLoop]: Abstraction has 35879 states and 60818 transitions. [2021-12-28 00:54:42,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:42,115 INFO L276 IsEmpty]: Start isEmpty. Operand 35879 states and 60818 transitions. [2021-12-28 00:54:42,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-12-28 00:54:42,135 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:42,135 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] [2021-12-28 00:54:42,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-28 00:54:42,136 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:42,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:42,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1528862455, now seen corresponding path program 1 times [2021-12-28 00:54:42,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:42,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263813921] [2021-12-28 00:54:42,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:42,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:42,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:42,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:42,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:42,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:42,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:42,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:42,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:42,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:42,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:42,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:42,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-28 00:54:42,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:42,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 00:54:42,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:42,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-28 00:54:42,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:42,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 00:54:42,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:42,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-28 00:54:42,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:42,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-28 00:54:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:42,237 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:42,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:42,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263813921] [2021-12-28 00:54:42,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263813921] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:42,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:42,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:42,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231938947] [2021-12-28 00:54:42,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:42,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:42,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:42,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:42,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:42,240 INFO L87 Difference]: Start difference. First operand 35879 states and 60818 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:45,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:45,944 INFO L93 Difference]: Finished difference Result 98100 states and 168469 transitions. [2021-12-28 00:54:45,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:45,945 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 126 [2021-12-28 00:54:45,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:46,168 INFO L225 Difference]: With dead ends: 98100 [2021-12-28 00:54:46,168 INFO L226 Difference]: Without dead ends: 66077 [2021-12-28 00:54:46,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:46,244 INFO L933 BasicCegarLoop]: 753 mSDtfsCounter, 1438 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 644 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1457 SdHoareTripleChecker+Valid, 1567 SdHoareTripleChecker+Invalid, 1957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 644 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:46,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1457 Valid, 1567 Invalid, 1957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [644 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 00:54:46,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66077 states. [2021-12-28 00:54:49,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66077 to 65876. [2021-12-28 00:54:49,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65876 states, 55607 states have (on average 1.6142212311399644) internal successors, (89762), 55615 states have internal predecessors, (89762), 10241 states have call successors, (10241), 23 states have call predecessors, (10241), 27 states have return successors, (11386), 10239 states have call predecessors, (11386), 10240 states have call successors, (11386) [2021-12-28 00:54:49,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65876 states to 65876 states and 111389 transitions. [2021-12-28 00:54:49,984 INFO L78 Accepts]: Start accepts. Automaton has 65876 states and 111389 transitions. Word has length 126 [2021-12-28 00:54:49,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:49,984 INFO L470 AbstractCegarLoop]: Abstraction has 65876 states and 111389 transitions. [2021-12-28 00:54:49,985 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:49,985 INFO L276 IsEmpty]: Start isEmpty. Operand 65876 states and 111389 transitions. [2021-12-28 00:54:50,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-28 00:54:50,003 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:50,004 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] [2021-12-28 00:54:50,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-28 00:54:50,004 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:50,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:50,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1961864041, now seen corresponding path program 1 times [2021-12-28 00:54:50,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:50,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13909767] [2021-12-28 00:54:50,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:50,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:50,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:50,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:50,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:50,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:50,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:50,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:50,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:50,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:50,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:50,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:50,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 00:54:50,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:50,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 00:54:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:50,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 00:54:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:50,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 00:54:50,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:50,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-28 00:54:50,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:50,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-28 00:54:50,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:50,070 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:50,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:50,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13909767] [2021-12-28 00:54:50,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13909767] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:50,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:50,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:50,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379452682] [2021-12-28 00:54:50,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:50,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:50,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:50,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:50,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:50,071 INFO L87 Difference]: Start difference. First operand 65876 states and 111389 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:55,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:55,699 INFO L93 Difference]: Finished difference Result 123761 states and 212902 transitions. [2021-12-28 00:54:55,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:55,699 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 127 [2021-12-28 00:54:55,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:56,106 INFO L225 Difference]: With dead ends: 123761 [2021-12-28 00:54:56,106 INFO L226 Difference]: Without dead ends: 123565 [2021-12-28 00:54:56,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:56,154 INFO L933 BasicCegarLoop]: 758 mSDtfsCounter, 1432 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 638 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 1564 SdHoareTripleChecker+Invalid, 1979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 638 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:56,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1450 Valid, 1564 Invalid, 1979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [638 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 00:54:56,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123565 states. [2021-12-28 00:55:01,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123565 to 123364. [2021-12-28 00:55:01,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123364 states, 104727 states have (on average 1.609078843087265) internal successors, (168514), 104735 states have internal predecessors, (168514), 18609 states have call successors, (18609), 23 states have call predecessors, (18609), 27 states have return successors, (20800), 18607 states have call predecessors, (20800), 18608 states have call successors, (20800) [2021-12-28 00:55:01,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123364 states to 123364 states and 207923 transitions. [2021-12-28 00:55:01,886 INFO L78 Accepts]: Start accepts. Automaton has 123364 states and 207923 transitions. Word has length 127 [2021-12-28 00:55:01,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:55:01,887 INFO L470 AbstractCegarLoop]: Abstraction has 123364 states and 207923 transitions. [2021-12-28 00:55:01,887 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:55:01,887 INFO L276 IsEmpty]: Start isEmpty. Operand 123364 states and 207923 transitions. [2021-12-28 00:55:01,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-28 00:55:01,908 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:55:01,908 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] [2021-12-28 00:55:01,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-28 00:55:01,909 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:55:01,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:55:01,909 INFO L85 PathProgramCache]: Analyzing trace with hash -792503190, now seen corresponding path program 1 times [2021-12-28 00:55:01,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:55:01,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251125232] [2021-12-28 00:55:01,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:55:01,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:55:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:55:01,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:55:01,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:55:01,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:55:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:55:01,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:55:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:55:01,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:55:01,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:55:01,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:55:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:55:01,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:55:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:55:01,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 00:55:01,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:55:02,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 00:55:02,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:55:02,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 00:55:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:55:02,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-28 00:55:02,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:55:02,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 00:55:02,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:55:02,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 00:55:02,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:55:02,045 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:55:02,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:55:02,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251125232] [2021-12-28 00:55:02,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251125232] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:55:02,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:55:02,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-12-28 00:55:02,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419719799] [2021-12-28 00:55:02,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:55:02,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-28 00:55:02,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:55:02,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-28 00:55:02,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2021-12-28 00:55:02,047 INFO L87 Difference]: Start difference. First operand 123364 states and 207923 transitions. Second operand has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 10 states have internal predecessors, (88), 5 states have call successors, (15), 7 states have call predecessors, (15), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12)