./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec27_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec27_productSimulator.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fe4506e3d5e012e1662dc0aa7741c8e3f8f99dc7c5ccf1f202c2f95071bfbf64 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 14:56:03,130 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 14:56:03,132 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 14:56:03,180 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 14:56:03,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 14:56:03,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 14:56:03,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 14:56:03,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 14:56:03,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 14:56:03,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 14:56:03,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 14:56:03,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 14:56:03,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 14:56:03,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 14:56:03,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 14:56:03,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 14:56:03,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 14:56:03,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 14:56:03,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 14:56:03,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 14:56:03,208 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 14:56:03,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 14:56:03,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 14:56:03,211 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 14:56:03,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 14:56:03,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 14:56:03,216 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 14:56:03,217 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 14:56:03,218 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 14:56:03,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 14:56:03,219 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 14:56:03,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 14:56:03,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 14:56:03,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 14:56:03,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 14:56:03,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 14:56:03,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 14:56:03,223 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 14:56:03,223 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 14:56:03,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 14:56:03,225 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 14:56:03,226 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 14:56:03,250 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 14:56:03,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 14:56:03,251 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 14:56:03,251 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 14:56:03,251 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 14:56:03,252 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 14:56:03,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 14:56:03,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 14:56:03,252 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 14:56:03,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 14:56:03,253 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 14:56:03,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 14:56:03,254 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 14:56:03,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 14:56:03,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 14:56:03,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 14:56:03,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 14:56:03,254 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 14:56:03,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 14:56:03,255 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 14:56:03,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 14:56:03,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 14:56:03,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 14:56:03,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 14:56:03,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 14:56:03,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 14:56:03,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 14:56:03,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 14:56:03,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 14:56:03,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 14:56:03,256 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 14:56:03,257 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 14:56:03,257 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 14:56:03,257 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 14:56:03,257 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe4506e3d5e012e1662dc0aa7741c8e3f8f99dc7c5ccf1f202c2f95071bfbf64 [2021-12-17 14:56:03,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 14:56:03,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 14:56:03,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 14:56:03,517 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 14:56:03,517 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 14:56:03,518 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec27_productSimulator.cil.c [2021-12-17 14:56:03,560 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8372d30e5/9985cab2bf8a4a6780276b34d240b253/FLAGd43f2deb7 [2021-12-17 14:56:03,960 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 14:56:03,963 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec27_productSimulator.cil.c [2021-12-17 14:56:03,985 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8372d30e5/9985cab2bf8a4a6780276b34d240b253/FLAGd43f2deb7 [2021-12-17 14:56:03,996 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8372d30e5/9985cab2bf8a4a6780276b34d240b253 [2021-12-17 14:56:03,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 14:56:04,000 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 14:56:04,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 14:56:04,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 14:56:04,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 14:56:04,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 02:56:03" (1/1) ... [2021-12-17 14:56:04,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b13bfe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:56:04, skipping insertion in model container [2021-12-17 14:56:04,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 02:56:03" (1/1) ... [2021-12-17 14:56:04,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 14:56:04,058 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 14:56:04,275 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_spec27_productSimulator.cil.c[11237,11250] [2021-12-17 14:56:04,497 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 14:56:04,510 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 14:56:04,533 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_spec27_productSimulator.cil.c[11237,11250] [2021-12-17 14:56:04,569 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 14:56:04,608 INFO L208 MainTranslator]: Completed translation [2021-12-17 14:56:04,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:56:04 WrapperNode [2021-12-17 14:56:04,608 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 14:56:04,609 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 14:56:04,609 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 14:56:04,609 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 14:56:04,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:56:04" (1/1) ... [2021-12-17 14:56:04,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:56:04" (1/1) ... [2021-12-17 14:56:04,712 INFO L137 Inliner]: procedures = 151, calls = 284, calls flagged for inlining = 66, calls inlined = 63, statements flattened = 1304 [2021-12-17 14:56:04,712 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 14:56:04,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 14:56:04,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 14:56:04,713 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 14:56:04,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:56:04" (1/1) ... [2021-12-17 14:56:04,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:56:04" (1/1) ... [2021-12-17 14:56:04,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:56:04" (1/1) ... [2021-12-17 14:56:04,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:56:04" (1/1) ... [2021-12-17 14:56:04,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:56:04" (1/1) ... [2021-12-17 14:56:04,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:56:04" (1/1) ... [2021-12-17 14:56:04,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:56:04" (1/1) ... [2021-12-17 14:56:04,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 14:56:04,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 14:56:04,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 14:56:04,816 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 14:56:04,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:56:04" (1/1) ... [2021-12-17 14:56:04,830 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 14:56:04,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:56:04,851 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-17 14:56:04,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-17 14:56:04,877 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-12-17 14:56:04,877 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-12-17 14:56:04,877 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2021-12-17 14:56:04,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2021-12-17 14:56:04,877 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2021-12-17 14:56:04,877 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2021-12-17 14:56:04,878 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-17 14:56:04,878 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-17 14:56:04,878 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-12-17 14:56:04,878 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-12-17 14:56:04,878 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-17 14:56:04,878 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-17 14:56:04,878 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-12-17 14:56:04,878 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-12-17 14:56:04,879 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2021-12-17 14:56:04,879 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2021-12-17 14:56:04,879 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-17 14:56:04,879 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-17 14:56:04,879 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2021-12-17 14:56:04,879 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2021-12-17 14:56:04,879 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-17 14:56:04,880 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-17 14:56:04,880 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-12-17 14:56:04,880 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-12-17 14:56:04,880 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-17 14:56:04,880 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-17 14:56:04,880 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2021-12-17 14:56:04,880 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2021-12-17 14:56:04,880 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2021-12-17 14:56:04,881 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2021-12-17 14:56:04,881 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-12-17 14:56:04,881 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-12-17 14:56:04,881 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-12-17 14:56:04,881 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-12-17 14:56:04,881 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-17 14:56:04,881 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-17 14:56:04,881 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-17 14:56:04,882 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2021-12-17 14:56:04,882 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2021-12-17 14:56:04,882 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-17 14:56:04,882 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-17 14:56:04,882 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2021-12-17 14:56:04,882 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2021-12-17 14:56:04,882 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-17 14:56:04,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-17 14:56:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2021-12-17 14:56:04,883 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2021-12-17 14:56:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 14:56:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-12-17 14:56:04,883 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-12-17 14:56:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-12-17 14:56:04,883 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-12-17 14:56:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2021-12-17 14:56:04,883 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2021-12-17 14:56:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2021-12-17 14:56:04,884 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2021-12-17 14:56:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2021-12-17 14:56:04,884 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2021-12-17 14:56:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-17 14:56:04,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-17 14:56:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-17 14:56:04,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-17 14:56:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-17 14:56:04,885 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-17 14:56:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-17 14:56:04,885 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-17 14:56:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2021-12-17 14:56:04,885 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2021-12-17 14:56:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2021-12-17 14:56:04,885 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2021-12-17 14:56:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-17 14:56:04,886 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-17 14:56:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-12-17 14:56:04,886 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-12-17 14:56:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2021-12-17 14:56:04,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2021-12-17 14:56:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2021-12-17 14:56:04,886 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2021-12-17 14:56:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-17 14:56:04,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-17 14:56:04,887 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-17 14:56:04,887 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-17 14:56:04,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 14:56:04,887 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-17 14:56:04,887 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-17 14:56:04,887 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2021-12-17 14:56:04,887 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2021-12-17 14:56:04,887 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-12-17 14:56:04,887 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-12-17 14:56:04,888 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-17 14:56:04,888 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-17 14:56:04,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 14:56:04,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 14:56:05,091 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 14:56:05,093 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 14:56:05,714 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 14:56:05,723 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 14:56:05,724 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 14:56:05,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 02:56:05 BoogieIcfgContainer [2021-12-17 14:56:05,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 14:56:05,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 14:56:05,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 14:56:05,731 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 14:56:05,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 02:56:03" (1/3) ... [2021-12-17 14:56:05,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@371fe52e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 02:56:05, skipping insertion in model container [2021-12-17 14:56:05,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:56:04" (2/3) ... [2021-12-17 14:56:05,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@371fe52e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 02:56:05, skipping insertion in model container [2021-12-17 14:56:05,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 02:56:05" (3/3) ... [2021-12-17 14:56:05,748 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec27_productSimulator.cil.c [2021-12-17 14:56:05,752 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 14:56:05,753 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 14:56:05,800 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 14:56:05,805 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 14:56:05,805 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 14:56:05,841 INFO L276 IsEmpty]: Start isEmpty. Operand has 608 states, 450 states have (on average 1.5133333333333334) internal successors, (681), 470 states have internal predecessors, (681), 112 states have call successors, (112), 44 states have call predecessors, (112), 44 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2021-12-17 14:56:05,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-17 14:56:05,866 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:56:05,867 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:56:05,867 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:56:05,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:56:05,881 INFO L85 PathProgramCache]: Analyzing trace with hash -779208577, now seen corresponding path program 1 times [2021-12-17 14:56:05,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:56:05,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593915370] [2021-12-17 14:56:05,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:05,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:56:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:06,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 14:56:06,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:06,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 14:56:06,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:06,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 14:56:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:06,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:56:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:06,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 14:56:06,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:06,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 14:56:06,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:06,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 14:56:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:06,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:56:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:06,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-17 14:56:06,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:06,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:06,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:06,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-17 14:56:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:06,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:06,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 14:56:06,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:06,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:06,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:06,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-17 14:56:06,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:06,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-17 14:56:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:06,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-17 14:56:06,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:06,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-17 14:56:06,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:06,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-17 14:56:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:06,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-17 14:56:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:06,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-17 14:56:06,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:06,450 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-17 14:56:06,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:56:06,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593915370] [2021-12-17 14:56:06,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593915370] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:56:06,451 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:56:06,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 14:56:06,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050561169] [2021-12-17 14:56:06,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:56:06,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 14:56:06,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:56:06,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 14:56:06,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 14:56:06,483 INFO L87 Difference]: Start difference. First operand has 608 states, 450 states have (on average 1.5133333333333334) internal successors, (681), 470 states have internal predecessors, (681), 112 states have call successors, (112), 44 states have call predecessors, (112), 44 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-17 14:56:07,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:56:07,490 INFO L93 Difference]: Finished difference Result 1077 states and 1633 transitions. [2021-12-17 14:56:07,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 14:56:07,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 158 [2021-12-17 14:56:07,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:56:07,507 INFO L225 Difference]: With dead ends: 1077 [2021-12-17 14:56:07,507 INFO L226 Difference]: Without dead ends: 731 [2021-12-17 14:56:07,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-17 14:56:07,534 INFO L933 BasicCegarLoop]: 895 mSDtfsCounter, 1366 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 668 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1374 SdHoareTripleChecker+Valid, 1619 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 668 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 14:56:07,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1374 Valid, 1619 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [668 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 14:56:07,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2021-12-17 14:56:07,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 601. [2021-12-17 14:56:07,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 444 states have (on average 1.509009009009009) internal successors, (670), 463 states have internal predecessors, (670), 112 states have call successors, (112), 44 states have call predecessors, (112), 44 states have return successors, (111), 110 states have call predecessors, (111), 111 states have call successors, (111) [2021-12-17 14:56:07,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 893 transitions. [2021-12-17 14:56:07,607 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 893 transitions. Word has length 158 [2021-12-17 14:56:07,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:56:07,608 INFO L470 AbstractCegarLoop]: Abstraction has 601 states and 893 transitions. [2021-12-17 14:56:07,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-17 14:56:07,608 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 893 transitions. [2021-12-17 14:56:07,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-12-17 14:56:07,613 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:56:07,613 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:56:07,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 14:56:07,614 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:56:07,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:56:07,617 INFO L85 PathProgramCache]: Analyzing trace with hash 487465451, now seen corresponding path program 1 times [2021-12-17 14:56:07,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:56:07,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657402487] [2021-12-17 14:56:07,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:07,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:56:07,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:07,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 14:56:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:07,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 14:56:07,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:07,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 14:56:07,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:07,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:56:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:07,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 14:56:07,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:07,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 14:56:07,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:07,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 14:56:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:07,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:56:07,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:07,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-17 14:56:07,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:07,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:07,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:07,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-17 14:56:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:07,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:07,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:07,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 14:56:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:07,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:07,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:07,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-17 14:56:07,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:07,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-17 14:56:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:07,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-17 14:56:07,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:07,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-17 14:56:07,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:07,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-17 14:56:07,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:07,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-17 14:56:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:07,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-17 14:56:07,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:07,757 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-17 14:56:07,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:56:07,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657402487] [2021-12-17 14:56:07,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657402487] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:56:07,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:56:07,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 14:56:07,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156249191] [2021-12-17 14:56:07,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:56:07,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 14:56:07,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:56:07,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 14:56:07,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-17 14:56:07,760 INFO L87 Difference]: Start difference. First operand 601 states and 893 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-17 14:56:09,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:56:09,350 INFO L93 Difference]: Finished difference Result 1296 states and 1954 transitions. [2021-12-17 14:56:09,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-17 14:56:09,351 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 159 [2021-12-17 14:56:09,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:56:09,355 INFO L225 Difference]: With dead ends: 1296 [2021-12-17 14:56:09,355 INFO L226 Difference]: Without dead ends: 731 [2021-12-17 14:56:09,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-12-17 14:56:09,358 INFO L933 BasicCegarLoop]: 884 mSDtfsCounter, 1366 mSDsluCounter, 1904 mSDsCounter, 0 mSdLazyCounter, 2339 mSolverCounterSat, 671 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1372 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 3010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 671 IncrementalHoareTripleChecker+Valid, 2339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 14:56:09,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1372 Valid, 2788 Invalid, 3010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [671 Valid, 2339 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 14:56:09,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2021-12-17 14:56:09,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 601. [2021-12-17 14:56:09,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 444 states have (on average 1.4932432432432432) internal successors, (663), 463 states have internal predecessors, (663), 112 states have call successors, (112), 44 states have call predecessors, (112), 44 states have return successors, (111), 110 states have call predecessors, (111), 111 states have call successors, (111) [2021-12-17 14:56:09,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 886 transitions. [2021-12-17 14:56:09,387 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 886 transitions. Word has length 159 [2021-12-17 14:56:09,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:56:09,387 INFO L470 AbstractCegarLoop]: Abstraction has 601 states and 886 transitions. [2021-12-17 14:56:09,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-17 14:56:09,388 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 886 transitions. [2021-12-17 14:56:09,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-17 14:56:09,390 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:56:09,390 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:56:09,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 14:56:09,391 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:56:09,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:56:09,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1007719467, now seen corresponding path program 1 times [2021-12-17 14:56:09,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:56:09,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218014324] [2021-12-17 14:56:09,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:09,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:56:09,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:09,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 14:56:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:09,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 14:56:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:09,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 14:56:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:09,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:56:09,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:09,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 14:56:09,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:09,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 14:56:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:09,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 14:56:09,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:09,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:56:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:09,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-17 14:56:09,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:09,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:09,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:09,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-17 14:56:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:09,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:09,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 14:56:09,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:09,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:09,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:09,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-17 14:56:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:09,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-17 14:56:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:09,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-17 14:56:09,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:09,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-17 14:56:09,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:09,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-17 14:56:09,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:09,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-17 14:56:09,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:09,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-17 14:56:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:09,541 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-17 14:56:09,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:56:09,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218014324] [2021-12-17 14:56:09,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218014324] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:56:09,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:56:09,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 14:56:09,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974345829] [2021-12-17 14:56:09,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:56:09,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 14:56:09,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:56:09,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 14:56:09,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 14:56:09,544 INFO L87 Difference]: Start difference. First operand 601 states and 886 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-17 14:56:10,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:56:10,587 INFO L93 Difference]: Finished difference Result 1299 states and 1968 transitions. [2021-12-17 14:56:10,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:56:10,588 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 164 [2021-12-17 14:56:10,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:56:10,592 INFO L225 Difference]: With dead ends: 1299 [2021-12-17 14:56:10,592 INFO L226 Difference]: Without dead ends: 731 [2021-12-17 14:56:10,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-17 14:56:10,594 INFO L933 BasicCegarLoop]: 883 mSDtfsCounter, 2071 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 869 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2098 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 1353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 869 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-17 14:56:10,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2098 Valid, 1578 Invalid, 1353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [869 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-17 14:56:10,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2021-12-17 14:56:10,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 602. [2021-12-17 14:56:10,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 446 states have (on average 1.484304932735426) internal successors, (662), 463 states have internal predecessors, (662), 110 states have call successors, (110), 45 states have call predecessors, (110), 45 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) [2021-12-17 14:56:10,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 881 transitions. [2021-12-17 14:56:10,636 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 881 transitions. Word has length 164 [2021-12-17 14:56:10,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:56:10,636 INFO L470 AbstractCegarLoop]: Abstraction has 602 states and 881 transitions. [2021-12-17 14:56:10,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-17 14:56:10,637 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 881 transitions. [2021-12-17 14:56:10,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-12-17 14:56:10,639 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:56:10,639 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:56:10,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 14:56:10,640 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:56:10,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:56:10,640 INFO L85 PathProgramCache]: Analyzing trace with hash 858043398, now seen corresponding path program 1 times [2021-12-17 14:56:10,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:56:10,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044919137] [2021-12-17 14:56:10,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:10,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:56:10,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:10,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 14:56:10,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:10,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 14:56:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:10,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 14:56:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:10,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:56:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:10,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 14:56:10,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:10,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 14:56:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:10,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 14:56:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:10,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:56:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:10,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-17 14:56:10,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:10,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:10,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:10,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:56:10,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:10,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:10,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:10,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-17 14:56:10,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:10,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:10,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:10,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 14:56:10,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:10,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-17 14:56:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:10,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-17 14:56:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:10,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-17 14:56:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:10,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-17 14:56:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:10,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-17 14:56:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:10,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 14:56:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:10,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-17 14:56:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:10,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-17 14:56:10,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:10,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-17 14:56:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:10,746 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-17 14:56:10,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:56:10,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044919137] [2021-12-17 14:56:10,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044919137] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:56:10,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:56:10,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 14:56:10,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090789218] [2021-12-17 14:56:10,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:56:10,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 14:56:10,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:56:10,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 14:56:10,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 14:56:10,748 INFO L87 Difference]: Start difference. First operand 602 states and 881 transitions. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-17 14:56:12,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:56:12,884 INFO L93 Difference]: Finished difference Result 1976 states and 3060 transitions. [2021-12-17 14:56:12,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-17 14:56:12,885 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 185 [2021-12-17 14:56:12,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:56:12,890 INFO L225 Difference]: With dead ends: 1976 [2021-12-17 14:56:12,890 INFO L226 Difference]: Without dead ends: 1408 [2021-12-17 14:56:12,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-12-17 14:56:12,893 INFO L933 BasicCegarLoop]: 939 mSDtfsCounter, 3284 mSDsluCounter, 1064 mSDsCounter, 0 mSdLazyCounter, 1520 mSolverCounterSat, 1476 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3327 SdHoareTripleChecker+Valid, 2003 SdHoareTripleChecker+Invalid, 2996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1476 IncrementalHoareTripleChecker+Valid, 1520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-17 14:56:12,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3327 Valid, 2003 Invalid, 2996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1476 Valid, 1520 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-17 14:56:12,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1408 states. [2021-12-17 14:56:12,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1408 to 1148. [2021-12-17 14:56:12,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1148 states, 853 states have (on average 1.4912075029308323) internal successors, (1272), 883 states have internal predecessors, (1272), 205 states have call successors, (205), 89 states have call predecessors, (205), 89 states have return successors, (216), 202 states have call predecessors, (216), 203 states have call successors, (216) [2021-12-17 14:56:12,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 1693 transitions. [2021-12-17 14:56:12,935 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 1693 transitions. Word has length 185 [2021-12-17 14:56:12,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:56:12,935 INFO L470 AbstractCegarLoop]: Abstraction has 1148 states and 1693 transitions. [2021-12-17 14:56:12,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-17 14:56:12,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 1693 transitions. [2021-12-17 14:56:12,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-12-17 14:56:12,940 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:56:12,940 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:56:12,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 14:56:12,940 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:56:12,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:56:12,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1580096765, now seen corresponding path program 1 times [2021-12-17 14:56:12,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:56:12,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139701801] [2021-12-17 14:56:12,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:12,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:56:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:12,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 14:56:12,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:12,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 14:56:12,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:12,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 14:56:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:12,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:56:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:12,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 14:56:12,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:12,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 14:56:12,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:12,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 14:56:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:13,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:56:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:13,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-17 14:56:13,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:13,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:13,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:13,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-17 14:56:13,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:13,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:13,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-17 14:56:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:13,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:13,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:13,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-17 14:56:13,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:13,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-17 14:56:13,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:13,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-17 14:56:13,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:13,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-17 14:56:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:13,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-17 14:56:13,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:13,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 14:56:13,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:13,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-17 14:56:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:13,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-17 14:56:13,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:13,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-17 14:56:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:13,057 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-17 14:56:13,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:56:13,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139701801] [2021-12-17 14:56:13,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139701801] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:56:13,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:56:13,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 14:56:13,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104944755] [2021-12-17 14:56:13,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:56:13,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 14:56:13,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:56:13,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 14:56:13,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 14:56:13,060 INFO L87 Difference]: Start difference. First operand 1148 states and 1693 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-17 14:56:14,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:56:14,038 INFO L93 Difference]: Finished difference Result 1279 states and 1921 transitions. [2021-12-17 14:56:14,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:56:14,039 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 179 [2021-12-17 14:56:14,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:56:14,042 INFO L225 Difference]: With dead ends: 1279 [2021-12-17 14:56:14,043 INFO L226 Difference]: Without dead ends: 732 [2021-12-17 14:56:14,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-17 14:56:14,046 INFO L933 BasicCegarLoop]: 877 mSDtfsCounter, 2030 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 829 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2057 SdHoareTripleChecker+Valid, 1579 SdHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 829 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-17 14:56:14,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2057 Valid, 1579 Invalid, 1309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [829 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-17 14:56:14,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2021-12-17 14:56:14,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 603. [2021-12-17 14:56:14,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 448 states have (on average 1.4732142857142858) internal successors, (660), 463 states have internal predecessors, (660), 108 states have call successors, (108), 46 states have call predecessors, (108), 46 states have return successors, (107), 106 states have call predecessors, (107), 107 states have call successors, (107) [2021-12-17 14:56:14,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 875 transitions. [2021-12-17 14:56:14,068 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 875 transitions. Word has length 179 [2021-12-17 14:56:14,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:56:14,069 INFO L470 AbstractCegarLoop]: Abstraction has 603 states and 875 transitions. [2021-12-17 14:56:14,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-17 14:56:14,069 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 875 transitions. [2021-12-17 14:56:14,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-12-17 14:56:14,071 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:56:14,071 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:56:14,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 14:56:14,072 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:56:14,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:56:14,072 INFO L85 PathProgramCache]: Analyzing trace with hash 2046699704, now seen corresponding path program 1 times [2021-12-17 14:56:14,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:56:14,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187145181] [2021-12-17 14:56:14,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:14,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:56:14,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:14,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 14:56:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:14,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 14:56:14,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:14,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 14:56:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:14,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:56:14,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:14,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 14:56:14,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:14,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 14:56:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:14,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 14:56:14,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:14,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:56:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:14,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 14:56:14,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:14,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:14,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-17 14:56:14,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:14,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:14,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-17 14:56:14,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:14,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:14,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-17 14:56:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:14,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-17 14:56:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:14,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-17 14:56:14,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:14,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-17 14:56:14,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:14,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-17 14:56:14,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:14,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-17 14:56:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:14,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-17 14:56:14,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:14,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 14:56:14,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:14,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-17 14:56:14,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:14,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-17 14:56:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:14,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-17 14:56:14,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:14,215 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-17 14:56:14,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:56:14,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187145181] [2021-12-17 14:56:14,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187145181] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:56:14,216 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:56:14,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 14:56:14,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364162890] [2021-12-17 14:56:14,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:56:14,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 14:56:14,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:56:14,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 14:56:14,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 14:56:14,218 INFO L87 Difference]: Start difference. First operand 603 states and 875 transitions. Second operand has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (34), 5 states have call predecessors, (34), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-17 14:56:15,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:56:15,205 INFO L93 Difference]: Finished difference Result 1289 states and 1904 transitions. [2021-12-17 14:56:15,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:56:15,206 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (34), 5 states have call predecessors, (34), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 195 [2021-12-17 14:56:15,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:56:15,209 INFO L225 Difference]: With dead ends: 1289 [2021-12-17 14:56:15,209 INFO L226 Difference]: Without dead ends: 735 [2021-12-17 14:56:15,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-17 14:56:15,211 INFO L933 BasicCegarLoop]: 859 mSDtfsCounter, 2008 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 819 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2033 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 819 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-17 14:56:15,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2033 Valid, 1515 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [819 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-17 14:56:15,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2021-12-17 14:56:15,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 600. [2021-12-17 14:56:15,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 448 states have (on average 1.4486607142857142) internal successors, (649), 458 states have internal predecessors, (649), 105 states have call successors, (105), 46 states have call predecessors, (105), 46 states have return successors, (104), 103 states have call predecessors, (104), 104 states have call successors, (104) [2021-12-17 14:56:15,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 858 transitions. [2021-12-17 14:56:15,235 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 858 transitions. Word has length 195 [2021-12-17 14:56:15,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:56:15,235 INFO L470 AbstractCegarLoop]: Abstraction has 600 states and 858 transitions. [2021-12-17 14:56:15,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (34), 5 states have call predecessors, (34), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-17 14:56:15,236 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 858 transitions. [2021-12-17 14:56:15,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-12-17 14:56:15,238 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:56:15,238 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:56:15,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 14:56:15,239 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:56:15,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:56:15,239 INFO L85 PathProgramCache]: Analyzing trace with hash 862754499, now seen corresponding path program 1 times [2021-12-17 14:56:15,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:56:15,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222485394] [2021-12-17 14:56:15,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:15,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:56:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 14:56:15,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 14:56:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 14:56:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:56:15,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 14:56:15,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 14:56:15,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 14:56:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:56:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 14:56:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:15,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:56:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:56:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-17 14:56:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-17 14:56:15,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:15,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-17 14:56:15,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-17 14:56:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-17 14:56:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-17 14:56:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-17 14:56:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-17 14:56:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-17 14:56:15,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-17 14:56:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 14:56:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-17 14:56:15,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-17 14:56:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-17 14:56:15,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,420 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-12-17 14:56:15,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:56:15,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222485394] [2021-12-17 14:56:15,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222485394] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 14:56:15,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71957012] [2021-12-17 14:56:15,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:15,421 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:56:15,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:56:15,422 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 14:56:15,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 14:56:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:15,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 1683 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 14:56:15,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 14:56:16,129 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2021-12-17 14:56:16,130 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 14:56:16,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71957012] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:56:16,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 14:56:16,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2021-12-17 14:56:16,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470558232] [2021-12-17 14:56:16,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:56:16,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 14:56:16,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:56:16,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 14:56:16,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:56:16,133 INFO L87 Difference]: Start difference. First operand 600 states and 858 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-17 14:56:16,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:56:16,179 INFO L93 Difference]: Finished difference Result 932 states and 1315 transitions. [2021-12-17 14:56:16,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 14:56:16,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 213 [2021-12-17 14:56:16,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:56:16,182 INFO L225 Difference]: With dead ends: 932 [2021-12-17 14:56:16,182 INFO L226 Difference]: Without dead ends: 603 [2021-12-17 14:56:16,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:56:16,184 INFO L933 BasicCegarLoop]: 852 mSDtfsCounter, 1 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 14:56:16,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1702 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 14:56:16,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2021-12-17 14:56:16,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 602. [2021-12-17 14:56:16,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 450 states have (on average 1.4466666666666668) internal successors, (651), 460 states have internal predecessors, (651), 105 states have call successors, (105), 46 states have call predecessors, (105), 46 states have return successors, (104), 103 states have call predecessors, (104), 104 states have call successors, (104) [2021-12-17 14:56:16,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 860 transitions. [2021-12-17 14:56:16,229 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 860 transitions. Word has length 213 [2021-12-17 14:56:16,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:56:16,230 INFO L470 AbstractCegarLoop]: Abstraction has 602 states and 860 transitions. [2021-12-17 14:56:16,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-17 14:56:16,231 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 860 transitions. [2021-12-17 14:56:16,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-12-17 14:56:16,247 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:56:16,247 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:56:16,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-17 14:56:16,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:56:16,478 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:56:16,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:56:16,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1363596423, now seen corresponding path program 1 times [2021-12-17 14:56:16,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:56:16,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767606706] [2021-12-17 14:56:16,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:16,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:56:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 14:56:16,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 14:56:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 14:56:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:56:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 14:56:16,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 14:56:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 14:56:16,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:56:16,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 14:56:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:16,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:56:16,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:56:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:16,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-17 14:56:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-17 14:56:16,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:16,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-17 14:56:16,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-17 14:56:16,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-17 14:56:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-17 14:56:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-17 14:56:16,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-17 14:56:16,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-17 14:56:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 14:56:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-17 14:56:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-17 14:56:16,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-17 14:56:16,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,632 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-12-17 14:56:16,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:56:16,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767606706] [2021-12-17 14:56:16,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767606706] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 14:56:16,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068124081] [2021-12-17 14:56:16,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:16,633 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:56:16,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:56:16,648 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 14:56:16,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 14:56:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:16,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 14:56:16,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 14:56:17,230 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-17 14:56:17,230 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 14:56:17,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068124081] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:56:17,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 14:56:17,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2021-12-17 14:56:17,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621619738] [2021-12-17 14:56:17,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:56:17,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 14:56:17,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:56:17,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 14:56:17,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:56:17,232 INFO L87 Difference]: Start difference. First operand 602 states and 860 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-17 14:56:17,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:56:17,267 INFO L93 Difference]: Finished difference Result 1221 states and 1779 transitions. [2021-12-17 14:56:17,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 14:56:17,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 214 [2021-12-17 14:56:17,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:56:17,270 INFO L225 Difference]: With dead ends: 1221 [2021-12-17 14:56:17,270 INFO L226 Difference]: Without dead ends: 700 [2021-12-17 14:56:17,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:56:17,271 INFO L933 BasicCegarLoop]: 877 mSDtfsCounter, 165 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1682 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 14:56:17,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 1682 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 14:56:17,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2021-12-17 14:56:17,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 692. [2021-12-17 14:56:17,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 526 states have (on average 1.461977186311787) internal successors, (769), 536 states have internal predecessors, (769), 119 states have call successors, (119), 46 states have call predecessors, (119), 46 states have return successors, (118), 117 states have call predecessors, (118), 118 states have call successors, (118) [2021-12-17 14:56:17,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1006 transitions. [2021-12-17 14:56:17,310 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1006 transitions. Word has length 214 [2021-12-17 14:56:17,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:56:17,311 INFO L470 AbstractCegarLoop]: Abstraction has 692 states and 1006 transitions. [2021-12-17 14:56:17,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-17 14:56:17,311 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1006 transitions. [2021-12-17 14:56:17,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-12-17 14:56:17,313 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:56:17,313 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:56:17,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-17 14:56:17,531 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,SelfDestructingSolverStorable7 [2021-12-17 14:56:17,531 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:56:17,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:56:17,532 INFO L85 PathProgramCache]: Analyzing trace with hash -2106062850, now seen corresponding path program 1 times [2021-12-17 14:56:17,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:56:17,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148461481] [2021-12-17 14:56:17,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:17,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:56:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 14:56:17,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 14:56:17,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 14:56:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:56:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 14:56:17,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 14:56:17,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 14:56:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:56:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 14:56:17,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:17,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:56:17,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:56:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-17 14:56:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-17 14:56:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-17 14:56:17,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-17 14:56:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-17 14:56:17,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-17 14:56:17,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-17 14:56:17,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-17 14:56:17,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-17 14:56:17,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 14:56:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-17 14:56:17,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-17 14:56:17,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-17 14:56:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,670 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-12-17 14:56:17,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:56:17,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148461481] [2021-12-17 14:56:17,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148461481] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 14:56:17,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767073987] [2021-12-17 14:56:17,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:17,671 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:56:17,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:56:17,672 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 14:56:17,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-17 14:56:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:17,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 1669 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-17 14:56:17,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 14:56:18,318 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-12-17 14:56:18,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 14:56:18,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767073987] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:56:18,319 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 14:56:18,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 18 [2021-12-17 14:56:18,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9756396] [2021-12-17 14:56:18,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:56:18,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 14:56:18,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:56:18,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 14:56:18,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-12-17 14:56:18,320 INFO L87 Difference]: Start difference. First operand 692 states and 1006 transitions. Second operand has 8 states, 6 states have (on average 21.833333333333332) internal successors, (131), 8 states have internal predecessors, (131), 4 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2021-12-17 14:56:18,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:56:18,446 INFO L93 Difference]: Finished difference Result 1328 states and 1947 transitions. [2021-12-17 14:56:18,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 14:56:18,447 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 21.833333333333332) internal successors, (131), 8 states have internal predecessors, (131), 4 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) Word has length 215 [2021-12-17 14:56:18,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:56:18,450 INFO L225 Difference]: With dead ends: 1328 [2021-12-17 14:56:18,450 INFO L226 Difference]: Without dead ends: 694 [2021-12-17 14:56:18,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-12-17 14:56:18,453 INFO L933 BasicCegarLoop]: 843 mSDtfsCounter, 363 mSDsluCounter, 4649 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 5492 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 14:56:18,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 5492 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 14:56:18,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2021-12-17 14:56:18,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 694. [2021-12-17 14:56:18,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 527 states have (on average 1.4611005692599621) internal successors, (770), 538 states have internal predecessors, (770), 119 states have call successors, (119), 46 states have call predecessors, (119), 47 states have return successors, (120), 117 states have call predecessors, (120), 118 states have call successors, (120) [2021-12-17 14:56:18,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1009 transitions. [2021-12-17 14:56:18,504 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1009 transitions. Word has length 215 [2021-12-17 14:56:18,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:56:18,504 INFO L470 AbstractCegarLoop]: Abstraction has 694 states and 1009 transitions. [2021-12-17 14:56:18,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 21.833333333333332) internal successors, (131), 8 states have internal predecessors, (131), 4 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2021-12-17 14:56:18,505 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1009 transitions. [2021-12-17 14:56:18,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-12-17 14:56:18,507 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:56:18,507 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:56:18,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-17 14:56:18,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:56:18,727 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:56:18,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:56:18,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1942488305, now seen corresponding path program 1 times [2021-12-17 14:56:18,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:56:18,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344365788] [2021-12-17 14:56:18,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:18,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:56:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 14:56:18,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 14:56:18,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 14:56:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:56:18,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 14:56:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 14:56:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 14:56:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:56:18,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 14:56:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:56:18,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:56:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 14:56:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-17 14:56:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:18,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-17 14:56:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-17 14:56:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-17 14:56:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-17 14:56:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-17 14:56:18,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-17 14:56:18,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-17 14:56:18,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-17 14:56:18,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 14:56:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-17 14:56:18,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-17 14:56:18,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-17 14:56:18,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:18,921 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-12-17 14:56:18,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:56:18,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344365788] [2021-12-17 14:56:18,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344365788] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 14:56:18,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82724626] [2021-12-17 14:56:18,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:18,922 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:56:18,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:56:18,923 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 14:56:18,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-17 14:56:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:19,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 1707 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 14:56:19,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 14:56:19,558 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-17 14:56:19,558 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 14:56:19,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82724626] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:56:19,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 14:56:19,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2021-12-17 14:56:19,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434541345] [2021-12-17 14:56:19,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:56:19,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 14:56:19,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:56:19,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 14:56:19,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2021-12-17 14:56:19,560 INFO L87 Difference]: Start difference. First operand 694 states and 1009 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-17 14:56:19,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:56:19,602 INFO L93 Difference]: Finished difference Result 1660 states and 2413 transitions. [2021-12-17 14:56:19,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 14:56:19,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 223 [2021-12-17 14:56:19,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:56:19,606 INFO L225 Difference]: With dead ends: 1660 [2021-12-17 14:56:19,606 INFO L226 Difference]: Without dead ends: 1339 [2021-12-17 14:56:19,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2021-12-17 14:56:19,608 INFO L933 BasicCegarLoop]: 966 mSDtfsCounter, 720 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 14:56:19,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [720 Valid, 1784 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 14:56:19,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2021-12-17 14:56:19,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 1337. [2021-12-17 14:56:19,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 1023 states have (on average 1.469208211143695) internal successors, (1503), 1042 states have internal predecessors, (1503), 222 states have call successors, (222), 89 states have call predecessors, (222), 91 states have return successors, (233), 218 states have call predecessors, (233), 220 states have call successors, (233) [2021-12-17 14:56:19,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1958 transitions. [2021-12-17 14:56:19,647 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1958 transitions. Word has length 223 [2021-12-17 14:56:19,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:56:19,647 INFO L470 AbstractCegarLoop]: Abstraction has 1337 states and 1958 transitions. [2021-12-17 14:56:19,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-17 14:56:19,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1958 transitions. [2021-12-17 14:56:19,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-12-17 14:56:19,651 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:56:19,651 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:56:19,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-17 14:56:19,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:56:19,871 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:56:19,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:56:19,871 INFO L85 PathProgramCache]: Analyzing trace with hash -622946293, now seen corresponding path program 1 times [2021-12-17 14:56:19,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:56:19,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144387326] [2021-12-17 14:56:19,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:19,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:56:19,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:19,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 14:56:19,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:19,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 14:56:19,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:19,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 14:56:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:19,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:56:19,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:19,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 14:56:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:19,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 14:56:19,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:19,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 14:56:19,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:19,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:56:19,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:20,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 14:56:20,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:20,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:20,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:20,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:56:20,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:20,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:56:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:20,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:20,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:20,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 14:56:20,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:20,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-17 14:56:20,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:20,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:20,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:20,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-17 14:56:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:20,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-17 14:56:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:20,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-17 14:56:20,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:20,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-17 14:56:20,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:20,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-17 14:56:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:20,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-17 14:56:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:20,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-17 14:56:20,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:20,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 14:56:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:20,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-17 14:56:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:20,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-17 14:56:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:20,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-17 14:56:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:20,096 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-12-17 14:56:20,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:56:20,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144387326] [2021-12-17 14:56:20,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144387326] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 14:56:20,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533706229] [2021-12-17 14:56:20,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:20,097 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:56:20,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:56:20,112 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 14:56:20,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-17 14:56:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:20,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 1670 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-17 14:56:20,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 14:56:20,784 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-12-17 14:56:20,784 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 14:56:20,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533706229] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:56:20,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 14:56:20,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2021-12-17 14:56:20,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562842921] [2021-12-17 14:56:20,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:56:20,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 14:56:20,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:56:20,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 14:56:20,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2021-12-17 14:56:20,786 INFO L87 Difference]: Start difference. First operand 1337 states and 1958 transitions. Second operand has 6 states, 5 states have (on average 26.6) internal successors, (133), 6 states have internal predecessors, (133), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-12-17 14:56:20,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:56:20,910 INFO L93 Difference]: Finished difference Result 2589 states and 3822 transitions. [2021-12-17 14:56:20,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-17 14:56:20,911 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 26.6) internal successors, (133), 6 states have internal predecessors, (133), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 216 [2021-12-17 14:56:20,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:56:20,916 INFO L225 Difference]: With dead ends: 2589 [2021-12-17 14:56:20,916 INFO L226 Difference]: Without dead ends: 1341 [2021-12-17 14:56:20,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-12-17 14:56:20,919 INFO L933 BasicCegarLoop]: 842 mSDtfsCounter, 361 mSDsluCounter, 2964 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 3806 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 14:56:20,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 3806 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 14:56:20,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2021-12-17 14:56:20,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1341. [2021-12-17 14:56:20,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1341 states, 1025 states have (on average 1.4682926829268292) internal successors, (1505), 1046 states have internal predecessors, (1505), 222 states have call successors, (222), 89 states have call predecessors, (222), 93 states have return successors, (243), 218 states have call predecessors, (243), 220 states have call successors, (243) [2021-12-17 14:56:20,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1970 transitions. [2021-12-17 14:56:20,960 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1970 transitions. Word has length 216 [2021-12-17 14:56:20,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:56:20,960 INFO L470 AbstractCegarLoop]: Abstraction has 1341 states and 1970 transitions. [2021-12-17 14:56:20,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 26.6) internal successors, (133), 6 states have internal predecessors, (133), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-12-17 14:56:20,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1970 transitions. [2021-12-17 14:56:20,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-12-17 14:56:20,964 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:56:20,964 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:56:21,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-17 14:56:21,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-17 14:56:21,202 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:56:21,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:56:21,203 INFO L85 PathProgramCache]: Analyzing trace with hash -899423682, now seen corresponding path program 1 times [2021-12-17 14:56:21,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:56:21,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671638739] [2021-12-17 14:56:21,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:21,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:56:21,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 14:56:21,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 14:56:21,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 14:56:21,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:56:21,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 14:56:21,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 14:56:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 14:56:21,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:56:21,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 14:56:21,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:21,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:56:21,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:56:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:21,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 14:56:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 14:56:21,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:21,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-17 14:56:21,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-17 14:56:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-17 14:56:21,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-17 14:56:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-17 14:56:21,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-17 14:56:21,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-17 14:56:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 14:56:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-17 14:56:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-17 14:56:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-17 14:56:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:21,375 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-12-17 14:56:21,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:56:21,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671638739] [2021-12-17 14:56:21,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671638739] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:56:21,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:56:21,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 14:56:21,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645675386] [2021-12-17 14:56:21,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:56:21,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 14:56:21,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:56:21,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 14:56:21,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-17 14:56:21,378 INFO L87 Difference]: Start difference. First operand 1341 states and 1970 transitions. Second operand has 12 states, 10 states have (on average 12.9) internal successors, (129), 8 states have internal predecessors, (129), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2021-12-17 14:56:23,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:56:23,870 INFO L93 Difference]: Finished difference Result 2813 states and 4269 transitions. [2021-12-17 14:56:23,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-17 14:56:23,871 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 12.9) internal successors, (129), 8 states have internal predecessors, (129), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) Word has length 217 [2021-12-17 14:56:23,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:56:23,880 INFO L225 Difference]: With dead ends: 2813 [2021-12-17 14:56:23,880 INFO L226 Difference]: Without dead ends: 1589 [2021-12-17 14:56:23,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2021-12-17 14:56:23,884 INFO L933 BasicCegarLoop]: 853 mSDtfsCounter, 2176 mSDsluCounter, 2715 mSDsCounter, 0 mSdLazyCounter, 4321 mSolverCounterSat, 928 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2176 SdHoareTripleChecker+Valid, 3568 SdHoareTripleChecker+Invalid, 5249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 928 IncrementalHoareTripleChecker+Valid, 4321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 14:56:23,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2176 Valid, 3568 Invalid, 5249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [928 Valid, 4321 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 14:56:23,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2021-12-17 14:56:23,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1341. [2021-12-17 14:56:23,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1341 states, 1025 states have (on average 1.4682926829268292) internal successors, (1505), 1046 states have internal predecessors, (1505), 222 states have call successors, (222), 89 states have call predecessors, (222), 93 states have return successors, (241), 218 states have call predecessors, (241), 220 states have call successors, (241) [2021-12-17 14:56:23,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1968 transitions. [2021-12-17 14:56:23,938 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1968 transitions. Word has length 217 [2021-12-17 14:56:23,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:56:23,939 INFO L470 AbstractCegarLoop]: Abstraction has 1341 states and 1968 transitions. [2021-12-17 14:56:23,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 12.9) internal successors, (129), 8 states have internal predecessors, (129), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2021-12-17 14:56:23,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1968 transitions. [2021-12-17 14:56:23,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-12-17 14:56:23,943 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:56:23,944 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:56:23,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-17 14:56:23,944 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:56:23,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:56:23,944 INFO L85 PathProgramCache]: Analyzing trace with hash 885850655, now seen corresponding path program 2 times [2021-12-17 14:56:23,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:56:23,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431940612] [2021-12-17 14:56:23,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:23,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:56:23,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:23,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 14:56:23,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:23,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 14:56:24,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:24,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 14:56:24,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:24,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:56:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:24,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 14:56:24,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:24,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 14:56:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:24,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 14:56:24,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:24,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:56:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:24,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 14:56:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:24,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:24,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:56:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:24,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:56:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:24,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:24,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:24,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 14:56:24,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:24,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 14:56:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:24,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:24,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:24,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-17 14:56:24,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:24,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-17 14:56:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:24,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-17 14:56:24,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:24,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-17 14:56:24,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:24,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-17 14:56:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:24,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-17 14:56:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:24,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-17 14:56:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:24,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 14:56:24,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:24,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-17 14:56:24,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:24,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-17 14:56:24,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:24,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-17 14:56:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:24,097 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-12-17 14:56:24,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:56:24,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431940612] [2021-12-17 14:56:24,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431940612] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:56:24,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:56:24,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 14:56:24,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577175544] [2021-12-17 14:56:24,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:56:24,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 14:56:24,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:56:24,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 14:56:24,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-17 14:56:24,099 INFO L87 Difference]: Start difference. First operand 1341 states and 1968 transitions. Second operand has 12 states, 10 states have (on average 13.0) internal successors, (130), 8 states have internal predecessors, (130), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2021-12-17 14:56:26,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:56:26,237 INFO L93 Difference]: Finished difference Result 2817 states and 4275 transitions. [2021-12-17 14:56:26,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-17 14:56:26,238 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 13.0) internal successors, (130), 8 states have internal predecessors, (130), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) Word has length 218 [2021-12-17 14:56:26,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:56:26,244 INFO L225 Difference]: With dead ends: 2817 [2021-12-17 14:56:26,244 INFO L226 Difference]: Without dead ends: 1593 [2021-12-17 14:56:26,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2021-12-17 14:56:26,247 INFO L933 BasicCegarLoop]: 860 mSDtfsCounter, 2145 mSDsluCounter, 2733 mSDsCounter, 0 mSdLazyCounter, 4354 mSolverCounterSat, 904 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2145 SdHoareTripleChecker+Valid, 3593 SdHoareTripleChecker+Invalid, 5258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 904 IncrementalHoareTripleChecker+Valid, 4354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-17 14:56:26,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2145 Valid, 3593 Invalid, 5258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [904 Valid, 4354 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-17 14:56:26,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1593 states. [2021-12-17 14:56:26,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1593 to 1345. [2021-12-17 14:56:26,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 1027 states have (on average 1.4673807205452776) internal successors, (1507), 1050 states have internal predecessors, (1507), 222 states have call successors, (222), 89 states have call predecessors, (222), 95 states have return successors, (245), 218 states have call predecessors, (245), 220 states have call successors, (245) [2021-12-17 14:56:26,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 1974 transitions. [2021-12-17 14:56:26,294 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 1974 transitions. Word has length 218 [2021-12-17 14:56:26,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:56:26,295 INFO L470 AbstractCegarLoop]: Abstraction has 1345 states and 1974 transitions. [2021-12-17 14:56:26,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 13.0) internal successors, (130), 8 states have internal predecessors, (130), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2021-12-17 14:56:26,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 1974 transitions. [2021-12-17 14:56:26,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-12-17 14:56:26,298 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:56:26,299 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:56:26,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-17 14:56:26,299 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:56:26,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:56:26,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1484316835, now seen corresponding path program 1 times [2021-12-17 14:56:26,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:56:26,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066688070] [2021-12-17 14:56:26,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:26,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:56:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 14:56:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 14:56:26,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 14:56:26,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:56:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 14:56:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 14:56:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 14:56:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:56:26,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 14:56:26,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:56:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:56:26,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 14:56:26,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 14:56:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 14:56:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-17 14:56:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-17 14:56:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-17 14:56:26,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-17 14:56:26,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-17 14:56:26,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-17 14:56:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 14:56:26,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-17 14:56:26,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-17 14:56:26,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-17 14:56:26,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:26,431 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-12-17 14:56:26,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:56:26,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066688070] [2021-12-17 14:56:26,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066688070] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:56:26,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:56:26,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-17 14:56:26,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391117916] [2021-12-17 14:56:26,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:56:26,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 14:56:26,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:56:26,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 14:56:26,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:56:26,433 INFO L87 Difference]: Start difference. First operand 1345 states and 1974 transitions. Second operand has 13 states, 11 states have (on average 12.181818181818182) internal successors, (134), 8 states have internal predecessors, (134), 4 states have call successors, (36), 6 states have call predecessors, (36), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2021-12-17 14:56:29,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:56:29,058 INFO L93 Difference]: Finished difference Result 3257 states and 5013 transitions. [2021-12-17 14:56:29,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-17 14:56:29,059 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 12.181818181818182) internal successors, (134), 8 states have internal predecessors, (134), 4 states have call successors, (36), 6 states have call predecessors, (36), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 219 [2021-12-17 14:56:29,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:56:29,067 INFO L225 Difference]: With dead ends: 3257 [2021-12-17 14:56:29,067 INFO L226 Difference]: Without dead ends: 2039 [2021-12-17 14:56:29,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2021-12-17 14:56:29,071 INFO L933 BasicCegarLoop]: 1051 mSDtfsCounter, 1998 mSDsluCounter, 5399 mSDsCounter, 0 mSdLazyCounter, 5160 mSolverCounterSat, 905 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2019 SdHoareTripleChecker+Valid, 6450 SdHoareTripleChecker+Invalid, 6065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 905 IncrementalHoareTripleChecker+Valid, 5160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-17 14:56:29,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2019 Valid, 6450 Invalid, 6065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [905 Valid, 5160 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-17 14:56:29,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2039 states. [2021-12-17 14:56:29,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2039 to 1355. [2021-12-17 14:56:29,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1355 states, 1031 states have (on average 1.4655674102812803) internal successors, (1511), 1056 states have internal predecessors, (1511), 224 states have call successors, (224), 89 states have call predecessors, (224), 99 states have return successors, (255), 222 states have call predecessors, (255), 222 states have call successors, (255) [2021-12-17 14:56:29,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1355 states to 1355 states and 1990 transitions. [2021-12-17 14:56:29,146 INFO L78 Accepts]: Start accepts. Automaton has 1355 states and 1990 transitions. Word has length 219 [2021-12-17 14:56:29,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:56:29,146 INFO L470 AbstractCegarLoop]: Abstraction has 1355 states and 1990 transitions. [2021-12-17 14:56:29,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 12.181818181818182) internal successors, (134), 8 states have internal predecessors, (134), 4 states have call successors, (36), 6 states have call predecessors, (36), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2021-12-17 14:56:29,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1355 states and 1990 transitions. [2021-12-17 14:56:29,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-12-17 14:56:29,150 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:56:29,150 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:56:29,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-17 14:56:29,150 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:56:29,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:56:29,151 INFO L85 PathProgramCache]: Analyzing trace with hash 202144549, now seen corresponding path program 1 times [2021-12-17 14:56:29,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:56:29,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886297339] [2021-12-17 14:56:29,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:29,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:56:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 14:56:29,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 14:56:29,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 14:56:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:56:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 14:56:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 14:56:29,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 14:56:29,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:56:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 14:56:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:56:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:56:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:29,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 14:56:29,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 14:56:29,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 14:56:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-17 14:56:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-17 14:56:29,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-17 14:56:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-17 14:56:29,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-17 14:56:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-17 14:56:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 14:56:29,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-17 14:56:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-17 14:56:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-17 14:56:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:29,316 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-12-17 14:56:29,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:56:29,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886297339] [2021-12-17 14:56:29,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886297339] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:56:29,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:56:29,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 14:56:29,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698349621] [2021-12-17 14:56:29,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:56:29,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 14:56:29,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:56:29,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 14:56:29,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-17 14:56:29,318 INFO L87 Difference]: Start difference. First operand 1355 states and 1990 transitions. Second operand has 12 states, 10 states have (on average 13.1) internal successors, (131), 8 states have internal predecessors, (131), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2021-12-17 14:56:31,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:56:31,790 INFO L93 Difference]: Finished difference Result 2813 states and 4267 transitions. [2021-12-17 14:56:31,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-17 14:56:31,790 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 13.1) internal successors, (131), 8 states have internal predecessors, (131), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) Word has length 219 [2021-12-17 14:56:31,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:56:31,797 INFO L225 Difference]: With dead ends: 2813 [2021-12-17 14:56:31,797 INFO L226 Difference]: Without dead ends: 1589 [2021-12-17 14:56:31,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2021-12-17 14:56:31,800 INFO L933 BasicCegarLoop]: 855 mSDtfsCounter, 2155 mSDsluCounter, 2727 mSDsCounter, 0 mSdLazyCounter, 4328 mSolverCounterSat, 900 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2155 SdHoareTripleChecker+Valid, 3582 SdHoareTripleChecker+Invalid, 5228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 900 IncrementalHoareTripleChecker+Valid, 4328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 14:56:31,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2155 Valid, 3582 Invalid, 5228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [900 Valid, 4328 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 14:56:31,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2021-12-17 14:56:31,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1345. [2021-12-17 14:56:31,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 1027 states have (on average 1.4673807205452776) internal successors, (1507), 1050 states have internal predecessors, (1507), 222 states have call successors, (222), 89 states have call predecessors, (222), 95 states have return successors, (243), 218 states have call predecessors, (243), 220 states have call successors, (243) [2021-12-17 14:56:31,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 1972 transitions. [2021-12-17 14:56:31,849 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 1972 transitions. Word has length 219 [2021-12-17 14:56:31,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:56:31,850 INFO L470 AbstractCegarLoop]: Abstraction has 1345 states and 1972 transitions. [2021-12-17 14:56:31,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 13.1) internal successors, (131), 8 states have internal predecessors, (131), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2021-12-17 14:56:31,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 1972 transitions. [2021-12-17 14:56:31,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-12-17 14:56:31,854 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:56:31,854 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:56:31,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-17 14:56:31,854 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:56:31,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:56:31,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1528973982, now seen corresponding path program 2 times [2021-12-17 14:56:31,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:56:31,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151038317] [2021-12-17 14:56:31,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:31,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:56:31,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:31,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 14:56:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:31,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 14:56:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:31,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 14:56:31,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:31,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:56:31,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:31,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 14:56:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:31,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 14:56:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:31,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 14:56:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:31,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:56:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:31,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 14:56:31,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:31,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:31,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:31,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:56:31,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:31,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:56:31,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:31,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:31,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:31,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 14:56:31,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:31,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 14:56:31,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:31,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:31,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 14:56:31,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:31,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-17 14:56:31,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:31,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-17 14:56:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:32,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-17 14:56:32,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:32,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-17 14:56:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:32,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-17 14:56:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:32,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-17 14:56:32,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:32,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 14:56:32,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:32,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-17 14:56:32,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:32,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-17 14:56:32,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:32,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-17 14:56:32,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:32,012 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-12-17 14:56:32,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:56:32,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151038317] [2021-12-17 14:56:32,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151038317] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:56:32,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:56:32,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-17 14:56:32,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913785117] [2021-12-17 14:56:32,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:56:32,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 14:56:32,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:56:32,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 14:56:32,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:56:32,014 INFO L87 Difference]: Start difference. First operand 1345 states and 1972 transitions. Second operand has 13 states, 11 states have (on average 12.272727272727273) internal successors, (135), 8 states have internal predecessors, (135), 4 states have call successors, (36), 6 states have call predecessors, (36), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2021-12-17 14:56:34,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:56:34,161 INFO L93 Difference]: Finished difference Result 2811 states and 4269 transitions. [2021-12-17 14:56:34,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-17 14:56:34,162 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 12.272727272727273) internal successors, (135), 8 states have internal predecessors, (135), 4 states have call successors, (36), 6 states have call predecessors, (36), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 220 [2021-12-17 14:56:34,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:56:34,187 INFO L225 Difference]: With dead ends: 2811 [2021-12-17 14:56:34,187 INFO L226 Difference]: Without dead ends: 1593 [2021-12-17 14:56:34,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2021-12-17 14:56:34,203 INFO L933 BasicCegarLoop]: 851 mSDtfsCounter, 1954 mSDsluCounter, 3273 mSDsCounter, 0 mSdLazyCounter, 5116 mSolverCounterSat, 859 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1973 SdHoareTripleChecker+Valid, 4124 SdHoareTripleChecker+Invalid, 5975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 859 IncrementalHoareTripleChecker+Valid, 5116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-17 14:56:34,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1973 Valid, 4124 Invalid, 5975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [859 Valid, 5116 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-17 14:56:34,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1593 states. [2021-12-17 14:56:34,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1593 to 1349. [2021-12-17 14:56:34,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1349 states, 1029 states have (on average 1.466472303206997) internal successors, (1509), 1054 states have internal predecessors, (1509), 222 states have call successors, (222), 89 states have call predecessors, (222), 97 states have return successors, (253), 218 states have call predecessors, (253), 220 states have call successors, (253) [2021-12-17 14:56:34,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1349 states to 1349 states and 1984 transitions. [2021-12-17 14:56:34,271 INFO L78 Accepts]: Start accepts. Automaton has 1349 states and 1984 transitions. Word has length 220 [2021-12-17 14:56:34,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:56:34,272 INFO L470 AbstractCegarLoop]: Abstraction has 1349 states and 1984 transitions. [2021-12-17 14:56:34,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 12.272727272727273) internal successors, (135), 8 states have internal predecessors, (135), 4 states have call successors, (36), 6 states have call predecessors, (36), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2021-12-17 14:56:34,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1349 states and 1984 transitions. [2021-12-17 14:56:34,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-12-17 14:56:34,276 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:56:34,276 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:56:34,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-17 14:56:34,276 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:56:34,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:56:34,277 INFO L85 PathProgramCache]: Analyzing trace with hash 726682078, now seen corresponding path program 1 times [2021-12-17 14:56:34,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:56:34,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338397401] [2021-12-17 14:56:34,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:34,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:56:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 14:56:34,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 14:56:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 14:56:34,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:56:34,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 14:56:34,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 14:56:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 14:56:34,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:56:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 14:56:34,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:34,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:56:34,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:56:34,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:34,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 14:56:34,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 14:56:34,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:34,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 14:56:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-17 14:56:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-17 14:56:34,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-17 14:56:34,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-17 14:56:34,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-17 14:56:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-17 14:56:34,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 14:56:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-17 14:56:34,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-17 14:56:34,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-17 14:56:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,379 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-17 14:56:34,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:56:34,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338397401] [2021-12-17 14:56:34,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338397401] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 14:56:34,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420873470] [2021-12-17 14:56:34,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:34,380 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:56:34,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:56:34,381 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 14:56:34,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-17 14:56:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:34,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 1675 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 14:56:34,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 14:56:34,942 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-17 14:56:34,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 14:56:35,288 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-17 14:56:35,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420873470] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 14:56:35,288 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 14:56:35,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2021-12-17 14:56:35,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220781525] [2021-12-17 14:56:35,289 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 14:56:35,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-17 14:56:35,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:56:35,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-17 14:56:35,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-17 14:56:35,290 INFO L87 Difference]: Start difference. First operand 1349 states and 1984 transitions. Second operand has 11 states, 11 states have (on average 16.545454545454547) internal successors, (182), 7 states have internal predecessors, (182), 2 states have call successors, (58), 6 states have call predecessors, (58), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-12-17 14:56:37,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:56:37,069 INFO L93 Difference]: Finished difference Result 3359 states and 5247 transitions. [2021-12-17 14:56:37,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 14:56:37,069 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 16.545454545454547) internal successors, (182), 7 states have internal predecessors, (182), 2 states have call successors, (58), 6 states have call predecessors, (58), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 221 [2021-12-17 14:56:37,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:56:37,084 INFO L225 Difference]: With dead ends: 3359 [2021-12-17 14:56:37,084 INFO L226 Difference]: Without dead ends: 2719 [2021-12-17 14:56:37,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2021-12-17 14:56:37,088 INFO L933 BasicCegarLoop]: 950 mSDtfsCounter, 2745 mSDsluCounter, 2199 mSDsCounter, 0 mSdLazyCounter, 2193 mSolverCounterSat, 1106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2802 SdHoareTripleChecker+Valid, 3149 SdHoareTripleChecker+Invalid, 3299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1106 IncrementalHoareTripleChecker+Valid, 2193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 14:56:37,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2802 Valid, 3149 Invalid, 3299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1106 Valid, 2193 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 14:56:37,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2021-12-17 14:56:37,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 2427. [2021-12-17 14:56:37,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2427 states, 1949 states have (on average 1.517188301693176) internal successors, (2957), 1974 states have internal predecessors, (2957), 380 states have call successors, (380), 89 states have call predecessors, (380), 97 states have return successors, (431), 376 states have call predecessors, (431), 378 states have call successors, (431) [2021-12-17 14:56:37,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2427 states to 2427 states and 3768 transitions. [2021-12-17 14:56:37,216 INFO L78 Accepts]: Start accepts. Automaton has 2427 states and 3768 transitions. Word has length 221 [2021-12-17 14:56:37,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:56:37,217 INFO L470 AbstractCegarLoop]: Abstraction has 2427 states and 3768 transitions. [2021-12-17 14:56:37,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.545454545454547) internal successors, (182), 7 states have internal predecessors, (182), 2 states have call successors, (58), 6 states have call predecessors, (58), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-12-17 14:56:37,217 INFO L276 IsEmpty]: Start isEmpty. Operand 2427 states and 3768 transitions. [2021-12-17 14:56:37,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-12-17 14:56:37,223 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:56:37,224 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:56:37,242 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-17 14:56:37,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-17 14:56:37,440 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:56:37,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:56:37,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1729862366, now seen corresponding path program 1 times [2021-12-17 14:56:37,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:56:37,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120661647] [2021-12-17 14:56:37,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:37,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:56:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 14:56:37,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 14:56:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 14:56:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:56:37,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 14:56:37,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 14:56:37,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 14:56:37,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:56:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 14:56:37,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:56:37,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:56:37,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 14:56:37,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 14:56:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:37,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 14:56:37,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-17 14:56:37,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-17 14:56:37,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-17 14:56:37,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-17 14:56:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-17 14:56:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-17 14:56:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 14:56:37,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-17 14:56:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-17 14:56:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-17 14:56:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:37,540 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-17 14:56:37,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:56:37,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120661647] [2021-12-17 14:56:37,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120661647] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:56:37,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:56:37,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:56:37,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951193997] [2021-12-17 14:56:37,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:56:37,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:56:37,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:56:37,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:56:37,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:56:37,543 INFO L87 Difference]: Start difference. First operand 2427 states and 3768 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-17 14:56:38,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:56:38,696 INFO L93 Difference]: Finished difference Result 5873 states and 9407 transitions. [2021-12-17 14:56:38,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:56:38,697 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 225 [2021-12-17 14:56:38,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:56:38,709 INFO L225 Difference]: With dead ends: 5873 [2021-12-17 14:56:38,709 INFO L226 Difference]: Without dead ends: 3689 [2021-12-17 14:56:38,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:56:38,714 INFO L933 BasicCegarLoop]: 898 mSDtfsCounter, 1961 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 919 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1979 SdHoareTripleChecker+Valid, 2148 SdHoareTripleChecker+Invalid, 2162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 919 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-17 14:56:38,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1979 Valid, 2148 Invalid, 2162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [919 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-17 14:56:38,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3689 states. [2021-12-17 14:56:38,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3689 to 3429. [2021-12-17 14:56:38,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3429 states, 2793 states have (on average 1.5284640171858217) internal successors, (4269), 2818 states have internal predecessors, (4269), 538 states have call successors, (538), 89 states have call predecessors, (538), 97 states have return successors, (609), 534 states have call predecessors, (609), 536 states have call successors, (609) [2021-12-17 14:56:38,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3429 states to 3429 states and 5416 transitions. [2021-12-17 14:56:38,835 INFO L78 Accepts]: Start accepts. Automaton has 3429 states and 5416 transitions. Word has length 225 [2021-12-17 14:56:38,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:56:38,836 INFO L470 AbstractCegarLoop]: Abstraction has 3429 states and 5416 transitions. [2021-12-17 14:56:38,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-17 14:56:38,837 INFO L276 IsEmpty]: Start isEmpty. Operand 3429 states and 5416 transitions. [2021-12-17 14:56:38,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-12-17 14:56:38,847 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:56:38,848 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:56:38,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-17 14:56:38,848 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:56:38,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:56:38,848 INFO L85 PathProgramCache]: Analyzing trace with hash 706215495, now seen corresponding path program 1 times [2021-12-17 14:56:38,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:56:38,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312909503] [2021-12-17 14:56:38,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:38,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:56:38,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 14:56:38,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 14:56:38,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 14:56:38,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:56:38,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 14:56:38,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 14:56:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 14:56:38,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:56:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 14:56:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:56:38,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:56:38,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:38,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 14:56:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 14:56:38,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 14:56:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-17 14:56:38,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-17 14:56:38,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-17 14:56:38,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-17 14:56:38,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-17 14:56:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-17 14:56:38,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 14:56:38,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-17 14:56:38,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-17 14:56:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-17 14:56:38,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:38,981 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-17 14:56:38,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:56:38,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312909503] [2021-12-17 14:56:38,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312909503] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:56:38,981 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:56:38,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:56:38,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150776853] [2021-12-17 14:56:38,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:56:38,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:56:38,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:56:38,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:56:38,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:56:38,983 INFO L87 Difference]: Start difference. First operand 3429 states and 5416 transitions. Second operand has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-17 14:56:40,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:56:40,449 INFO L93 Difference]: Finished difference Result 8367 states and 13521 transitions. [2021-12-17 14:56:40,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:56:40,449 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 226 [2021-12-17 14:56:40,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:56:40,466 INFO L225 Difference]: With dead ends: 8367 [2021-12-17 14:56:40,466 INFO L226 Difference]: Without dead ends: 5307 [2021-12-17 14:56:40,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:56:40,474 INFO L933 BasicCegarLoop]: 887 mSDtfsCounter, 1976 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 937 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1994 SdHoareTripleChecker+Valid, 2113 SdHoareTripleChecker+Invalid, 2153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 937 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-17 14:56:40,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1994 Valid, 2113 Invalid, 2153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [937 Valid, 1216 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-17 14:56:40,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5307 states. [2021-12-17 14:56:40,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5307 to 5047. [2021-12-17 14:56:40,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5047 states, 4173 states have (on average 1.5406182602444285) internal successors, (6429), 4198 states have internal predecessors, (6429), 776 states have call successors, (776), 89 states have call predecessors, (776), 97 states have return successors, (847), 772 states have call predecessors, (847), 774 states have call successors, (847) [2021-12-17 14:56:40,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5047 states to 5047 states and 8052 transitions. [2021-12-17 14:56:40,635 INFO L78 Accepts]: Start accepts. Automaton has 5047 states and 8052 transitions. Word has length 226 [2021-12-17 14:56:40,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:56:40,636 INFO L470 AbstractCegarLoop]: Abstraction has 5047 states and 8052 transitions. [2021-12-17 14:56:40,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-17 14:56:40,636 INFO L276 IsEmpty]: Start isEmpty. Operand 5047 states and 8052 transitions. [2021-12-17 14:56:40,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-17 14:56:40,650 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:56:40,651 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:56:40,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-17 14:56:40,651 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:56:40,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:56:40,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1370779497, now seen corresponding path program 1 times [2021-12-17 14:56:40,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:56:40,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304186513] [2021-12-17 14:56:40,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:40,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:56:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 14:56:40,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 14:56:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 14:56:40,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:56:40,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 14:56:40,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 14:56:40,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 14:56:40,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:56:40,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 14:56:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:56:40,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:56:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:40,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 14:56:40,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 14:56:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:40,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 14:56:40,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-17 14:56:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-17 14:56:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-17 14:56:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-17 14:56:40,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-17 14:56:40,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-17 14:56:40,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 14:56:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-17 14:56:40,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-17 14:56:40,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-17 14:56:40,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:40,826 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-17 14:56:40,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:56:40,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304186513] [2021-12-17 14:56:40,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304186513] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:56:40,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:56:40,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:56:40,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445265375] [2021-12-17 14:56:40,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:56:40,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:56:40,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:56:40,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:56:40,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:56:40,828 INFO L87 Difference]: Start difference. First operand 5047 states and 8052 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-17 14:56:42,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:56:42,502 INFO L93 Difference]: Finished difference Result 12165 states and 19835 transitions. [2021-12-17 14:56:42,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:56:42,502 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 227 [2021-12-17 14:56:42,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:56:42,520 INFO L225 Difference]: With dead ends: 12165 [2021-12-17 14:56:42,521 INFO L226 Difference]: Without dead ends: 7801 [2021-12-17 14:56:42,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:56:42,529 INFO L933 BasicCegarLoop]: 879 mSDtfsCounter, 1964 mSDsluCounter, 1217 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 904 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1982 SdHoareTripleChecker+Valid, 2096 SdHoareTripleChecker+Invalid, 2121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 904 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 14:56:42,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1982 Valid, 2096 Invalid, 2121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [904 Valid, 1217 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 14:56:42,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7801 states. [2021-12-17 14:56:42,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7801 to 7541. [2021-12-17 14:56:42,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7541 states, 6343 states have (on average 1.5508434494718588) internal successors, (9837), 6368 states have internal predecessors, (9837), 1100 states have call successors, (1100), 89 states have call predecessors, (1100), 97 states have return successors, (1203), 1096 states have call predecessors, (1203), 1098 states have call successors, (1203) [2021-12-17 14:56:42,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7541 states to 7541 states and 12140 transitions. [2021-12-17 14:56:42,808 INFO L78 Accepts]: Start accepts. Automaton has 7541 states and 12140 transitions. Word has length 227 [2021-12-17 14:56:42,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:56:42,808 INFO L470 AbstractCegarLoop]: Abstraction has 7541 states and 12140 transitions. [2021-12-17 14:56:42,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-17 14:56:42,809 INFO L276 IsEmpty]: Start isEmpty. Operand 7541 states and 12140 transitions. [2021-12-17 14:56:42,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-12-17 14:56:42,836 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:56:42,837 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:56:42,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-17 14:56:42,837 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:56:42,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:56:42,837 INFO L85 PathProgramCache]: Analyzing trace with hash 591874569, now seen corresponding path program 1 times [2021-12-17 14:56:42,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:56:42,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895942762] [2021-12-17 14:56:42,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:42,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:56:42,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 14:56:42,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 14:56:42,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 14:56:42,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:56:42,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 14:56:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 14:56:42,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 14:56:42,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:56:42,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 14:56:42,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:42,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:56:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:56:42,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:42,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 14:56:42,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 14:56:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 14:56:42,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-17 14:56:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-17 14:56:42,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-17 14:56:42,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-17 14:56:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-17 14:56:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-17 14:56:42,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 14:56:42,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-17 14:56:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-17 14:56:42,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-17 14:56:42,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:42,942 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-17 14:56:42,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:56:42,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895942762] [2021-12-17 14:56:42,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895942762] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:56:42,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:56:42,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:56:42,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493267687] [2021-12-17 14:56:42,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:56:42,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:56:42,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:56:42,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:56:42,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:56:42,944 INFO L87 Difference]: Start difference. First operand 7541 states and 12140 transitions. Second operand has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-17 14:56:44,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:56:44,403 INFO L93 Difference]: Finished difference Result 18169 states and 29853 transitions. [2021-12-17 14:56:44,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:56:44,403 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 228 [2021-12-17 14:56:44,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:56:44,446 INFO L225 Difference]: With dead ends: 18169 [2021-12-17 14:56:44,446 INFO L226 Difference]: Without dead ends: 11829 [2021-12-17 14:56:44,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:56:44,464 INFO L933 BasicCegarLoop]: 881 mSDtfsCounter, 1955 mSDsluCounter, 1217 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 912 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1973 SdHoareTripleChecker+Valid, 2098 SdHoareTripleChecker+Invalid, 2129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 912 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 14:56:44,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1973 Valid, 2098 Invalid, 2129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [912 Valid, 1217 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 14:56:44,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11829 states. [2021-12-17 14:56:44,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11829 to 11569. [2021-12-17 14:56:44,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11569 states, 9881 states have (on average 1.5594575447829166) internal successors, (15409), 9906 states have internal predecessors, (15409), 1590 states have call successors, (1590), 89 states have call predecessors, (1590), 97 states have return successors, (1745), 1586 states have call predecessors, (1745), 1588 states have call successors, (1745) [2021-12-17 14:56:44,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11569 states to 11569 states and 18744 transitions. [2021-12-17 14:56:44,981 INFO L78 Accepts]: Start accepts. Automaton has 11569 states and 18744 transitions. Word has length 228 [2021-12-17 14:56:44,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:56:44,982 INFO L470 AbstractCegarLoop]: Abstraction has 11569 states and 18744 transitions. [2021-12-17 14:56:44,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-17 14:56:44,982 INFO L276 IsEmpty]: Start isEmpty. Operand 11569 states and 18744 transitions. [2021-12-17 14:56:45,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-12-17 14:56:45,006 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:56:45,006 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:56:45,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-17 14:56:45,006 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:56:45,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:56:45,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1721161890, now seen corresponding path program 1 times [2021-12-17 14:56:45,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:56:45,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188597385] [2021-12-17 14:56:45,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:45,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:56:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 14:56:45,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 14:56:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 14:56:45,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:56:45,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 14:56:45,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 14:56:45,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 14:56:45,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:56:45,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 14:56:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:45,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:56:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:56:45,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 14:56:45,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 14:56:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 14:56:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-17 14:56:45,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-17 14:56:45,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-17 14:56:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-17 14:56:45,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-17 14:56:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-17 14:56:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 14:56:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-17 14:56:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-17 14:56:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-17 14:56:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:45,099 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-17 14:56:45,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:56:45,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188597385] [2021-12-17 14:56:45,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188597385] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:56:45,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:56:45,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:56:45,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629413997] [2021-12-17 14:56:45,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:56:45,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:56:45,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:56:45,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:56:45,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:56:45,101 INFO L87 Difference]: Start difference. First operand 11569 states and 18744 transitions. Second operand has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-17 14:56:46,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:56:46,670 INFO L93 Difference]: Finished difference Result 28155 states and 46449 transitions. [2021-12-17 14:56:46,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:56:46,671 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 229 [2021-12-17 14:56:46,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:56:46,728 INFO L225 Difference]: With dead ends: 28155 [2021-12-17 14:56:46,728 INFO L226 Difference]: Without dead ends: 18579 [2021-12-17 14:56:46,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:56:46,753 INFO L933 BasicCegarLoop]: 896 mSDtfsCounter, 1950 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 912 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1968 SdHoareTripleChecker+Valid, 2138 SdHoareTripleChecker+Invalid, 2155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 912 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 14:56:46,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1968 Valid, 2138 Invalid, 2155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [912 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 14:56:46,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18579 states. [2021-12-17 14:56:47,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18579 to 18319. [2021-12-17 14:56:47,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18319 states, 15645 states have (on average 1.5568552253116013) internal successors, (24357), 15670 states have internal predecessors, (24357), 2576 states have call successors, (2576), 89 states have call predecessors, (2576), 97 states have return successors, (2819), 2572 states have call predecessors, (2819), 2574 states have call successors, (2819) [2021-12-17 14:56:47,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18319 states to 18319 states and 29752 transitions. [2021-12-17 14:56:47,465 INFO L78 Accepts]: Start accepts. Automaton has 18319 states and 29752 transitions. Word has length 229 [2021-12-17 14:56:47,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:56:47,465 INFO L470 AbstractCegarLoop]: Abstraction has 18319 states and 29752 transitions. [2021-12-17 14:56:47,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-17 14:56:47,466 INFO L276 IsEmpty]: Start isEmpty. Operand 18319 states and 29752 transitions. [2021-12-17 14:56:47,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-12-17 14:56:47,608 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:56:47,609 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:56:47,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-17 14:56:47,609 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:56:47,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:56:47,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1389275628, now seen corresponding path program 1 times [2021-12-17 14:56:47,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:56:47,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038288046] [2021-12-17 14:56:47,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:47,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:56:47,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 14:56:47,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 14:56:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 14:56:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:56:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 14:56:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 14:56:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 14:56:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:56:47,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 14:56:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:47,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:56:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:56:47,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 14:56:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 14:56:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 14:56:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-17 14:56:47,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-17 14:56:47,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-17 14:56:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-17 14:56:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-17 14:56:47,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-17 14:56:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 14:56:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-17 14:56:47,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-17 14:56:47,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-17 14:56:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:47,711 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-17 14:56:47,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:56:47,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038288046] [2021-12-17 14:56:47,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038288046] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:56:47,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:56:47,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:56:47,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202354044] [2021-12-17 14:56:47,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:56:47,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:56:47,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:56:47,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:56:47,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:56:47,713 INFO L87 Difference]: Start difference. First operand 18319 states and 29752 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-17 14:56:49,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:56:49,944 INFO L93 Difference]: Finished difference Result 46061 states and 76201 transitions. [2021-12-17 14:56:49,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:56:49,945 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 230 [2021-12-17 14:56:49,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:56:50,044 INFO L225 Difference]: With dead ends: 46061 [2021-12-17 14:56:50,045 INFO L226 Difference]: Without dead ends: 30727 [2021-12-17 14:56:50,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:56:50,079 INFO L933 BasicCegarLoop]: 887 mSDtfsCounter, 1951 mSDsluCounter, 1231 mSDsCounter, 0 mSdLazyCounter, 1237 mSolverCounterSat, 915 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1969 SdHoareTripleChecker+Valid, 2118 SdHoareTripleChecker+Invalid, 2152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 915 IncrementalHoareTripleChecker+Valid, 1237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 14:56:50,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1969 Valid, 2118 Invalid, 2152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [915 Valid, 1237 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 14:56:50,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30727 states. [2021-12-17 14:56:51,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30727 to 30467. [2021-12-17 14:56:51,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30467 states, 26149 states have (on average 1.5626218975869057) internal successors, (40861), 26174 states have internal predecessors, (40861), 4220 states have call successors, (4220), 89 states have call predecessors, (4220), 97 states have return successors, (4619), 4216 states have call predecessors, (4619), 4218 states have call successors, (4619) [2021-12-17 14:56:51,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30467 states to 30467 states and 49700 transitions. [2021-12-17 14:56:51,254 INFO L78 Accepts]: Start accepts. Automaton has 30467 states and 49700 transitions. Word has length 230 [2021-12-17 14:56:51,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:56:51,254 INFO L470 AbstractCegarLoop]: Abstraction has 30467 states and 49700 transitions. [2021-12-17 14:56:51,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-17 14:56:51,255 INFO L276 IsEmpty]: Start isEmpty. Operand 30467 states and 49700 transitions. [2021-12-17 14:56:51,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-12-17 14:56:51,318 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:56:51,319 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:56:51,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-17 14:56:51,319 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:56:51,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:56:51,319 INFO L85 PathProgramCache]: Analyzing trace with hash -299848699, now seen corresponding path program 1 times [2021-12-17 14:56:51,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:56:51,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257842551] [2021-12-17 14:56:51,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:51,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:56:51,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 14:56:51,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 14:56:51,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 14:56:51,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:56:51,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 14:56:51,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 14:56:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 14:56:51,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:56:51,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 14:56:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:56:51,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:56:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:51,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 14:56:51,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 14:56:51,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:51,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 14:56:51,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-17 14:56:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-17 14:56:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-17 14:56:51,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-17 14:56:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-17 14:56:51,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-17 14:56:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 14:56:51,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-17 14:56:51,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-17 14:56:51,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-17 14:56:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:51,412 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-17 14:56:51,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:56:51,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257842551] [2021-12-17 14:56:51,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257842551] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:56:51,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:56:51,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:56:51,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462364366] [2021-12-17 14:56:51,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:56:51,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:56:51,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:56:51,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:56:51,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:56:51,414 INFO L87 Difference]: Start difference. First operand 30467 states and 49700 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-17 14:56:54,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:56:54,279 INFO L93 Difference]: Finished difference Result 73679 states and 120969 transitions. [2021-12-17 14:56:54,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:56:54,280 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 231 [2021-12-17 14:56:54,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:56:54,433 INFO L225 Difference]: With dead ends: 73679 [2021-12-17 14:56:54,433 INFO L226 Difference]: Without dead ends: 48465 [2021-12-17 14:56:54,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:56:54,494 INFO L933 BasicCegarLoop]: 895 mSDtfsCounter, 1946 mSDsluCounter, 1231 mSDsCounter, 0 mSdLazyCounter, 1239 mSolverCounterSat, 903 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1964 SdHoareTripleChecker+Valid, 2126 SdHoareTripleChecker+Invalid, 2142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 903 IncrementalHoareTripleChecker+Valid, 1239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-17 14:56:54,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1964 Valid, 2126 Invalid, 2142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [903 Valid, 1239 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-17 14:56:54,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48465 states. [2021-12-17 14:56:56,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48465 to 48205. [2021-12-17 14:56:56,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48205 states, 41481 states have (on average 1.5355705021576143) internal successors, (63697), 41506 states have internal predecessors, (63697), 6626 states have call successors, (6626), 89 states have call predecessors, (6626), 97 states have return successors, (7313), 6622 states have call predecessors, (7313), 6624 states have call successors, (7313) [2021-12-17 14:56:56,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48205 states to 48205 states and 77636 transitions. [2021-12-17 14:56:56,834 INFO L78 Accepts]: Start accepts. Automaton has 48205 states and 77636 transitions. Word has length 231 [2021-12-17 14:56:56,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:56:56,834 INFO L470 AbstractCegarLoop]: Abstraction has 48205 states and 77636 transitions. [2021-12-17 14:56:56,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-17 14:56:56,834 INFO L276 IsEmpty]: Start isEmpty. Operand 48205 states and 77636 transitions. [2021-12-17 14:56:56,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-12-17 14:56:56,925 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:56:56,926 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:56:56,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-17 14:56:56,926 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:56:56,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:56:56,926 INFO L85 PathProgramCache]: Analyzing trace with hash 502362306, now seen corresponding path program 1 times [2021-12-17 14:56:56,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:56:56,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963594459] [2021-12-17 14:56:56,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:56:56,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:56:56,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:56,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 14:56:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:56,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 14:56:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:56,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 14:56:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:56,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:56:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:56,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 14:56:56,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:56,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 14:56:56,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:56,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 14:56:56,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:56,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:56:56,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:56,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 14:56:56,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:56,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:56,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:56:56,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:56,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:56:56,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:56,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:56,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 14:56:56,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:56,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 14:56:56,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:56,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:56:56,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:56,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 14:56:56,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:56,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-17 14:56:56,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:57,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-17 14:56:57,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:57,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-17 14:56:57,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:57,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-17 14:56:57,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:57,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-17 14:56:57,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:57,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-17 14:56:57,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:57,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 14:56:57,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:57,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-17 14:56:57,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:57,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-17 14:56:57,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:57,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-17 14:56:57,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:56:57,013 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-17 14:56:57,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:56:57,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963594459] [2021-12-17 14:56:57,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963594459] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:56:57,014 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:56:57,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:56:57,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414699692] [2021-12-17 14:56:57,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:56:57,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:56:57,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:56:57,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:56:57,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:56:57,015 INFO L87 Difference]: Start difference. First operand 48205 states and 77636 transitions. Second operand has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-17 14:57:01,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:57:01,505 INFO L93 Difference]: Finished difference Result 127385 states and 208345 transitions. [2021-12-17 14:57:01,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:57:01,506 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 232 [2021-12-17 14:57:01,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:57:01,942 INFO L225 Difference]: With dead ends: 127385 [2021-12-17 14:57:01,942 INFO L226 Difference]: Without dead ends: 86057 [2021-12-17 14:57:02,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:57:02,036 INFO L933 BasicCegarLoop]: 886 mSDtfsCounter, 1944 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 1229 mSolverCounterSat, 915 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1963 SdHoareTripleChecker+Valid, 2110 SdHoareTripleChecker+Invalid, 2144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 915 IncrementalHoareTripleChecker+Valid, 1229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 14:57:02,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1963 Valid, 2110 Invalid, 2144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [915 Valid, 1229 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 14:57:02,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86057 states. [2021-12-17 14:57:05,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86057 to 85797. [2021-12-17 14:57:05,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85797 states, 74173 states have (on average 1.5355587612743182) internal successors, (113897), 74198 states have internal predecessors, (113897), 11526 states have call successors, (11526), 89 states have call predecessors, (11526), 97 states have return successors, (12761), 11522 states have call predecessors, (12761), 11524 states have call successors, (12761) [2021-12-17 14:57:05,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85797 states to 85797 states and 138184 transitions. [2021-12-17 14:57:05,867 INFO L78 Accepts]: Start accepts. Automaton has 85797 states and 138184 transitions. Word has length 232 [2021-12-17 14:57:05,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:57:05,868 INFO L470 AbstractCegarLoop]: Abstraction has 85797 states and 138184 transitions. [2021-12-17 14:57:05,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-17 14:57:05,868 INFO L276 IsEmpty]: Start isEmpty. Operand 85797 states and 138184 transitions. [2021-12-17 14:57:06,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-12-17 14:57:06,010 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:57:06,010 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:57:06,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-17 14:57:06,011 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:57:06,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:57:06,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1878067470, now seen corresponding path program 1 times [2021-12-17 14:57:06,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:57:06,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365911969] [2021-12-17 14:57:06,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:57:06,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:57:06,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 14:57:06,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 14:57:06,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 14:57:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:57:06,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 14:57:06,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 14:57:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 14:57:06,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:57:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 14:57:06,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:57:06,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:57:06,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:57:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:57:06,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 14:57:06,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 14:57:06,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:57:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 14:57:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-17 14:57:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-17 14:57:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-17 14:57:06,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-17 14:57:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-17 14:57:06,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-17 14:57:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 14:57:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-17 14:57:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-17 14:57:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-17 14:57:06,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:57:06,104 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-17 14:57:06,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:57:06,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365911969] [2021-12-17 14:57:06,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365911969] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:57:06,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:57:06,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:57:06,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934475321] [2021-12-17 14:57:06,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:57:06,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:57:06,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:57:06,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:57:06,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:57:06,107 INFO L87 Difference]: Start difference. First operand 85797 states and 138184 transitions. Second operand has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 3 states have internal predecessors, (143), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-17 14:57:12,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:57:12,785 INFO L93 Difference]: Finished difference Result 232709 states and 380253 transitions. [2021-12-17 14:57:12,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:57:12,786 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 3 states have internal predecessors, (143), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 233 [2021-12-17 14:57:12,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:57:13,442 INFO L225 Difference]: With dead ends: 232709 [2021-12-17 14:57:13,442 INFO L226 Difference]: Without dead ends: 156141 [2021-12-17 14:57:13,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:57:13,575 INFO L933 BasicCegarLoop]: 883 mSDtfsCounter, 1972 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 941 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1990 SdHoareTripleChecker+Valid, 2113 SdHoareTripleChecker+Invalid, 2155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 941 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 14:57:13,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1990 Valid, 2113 Invalid, 2155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [941 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 14:57:13,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156141 states.