./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec8_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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_spec8_product32.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 614dee6ac528b2b5bcd12e57f515dcc43213e2cedeb5bd1e2531b305b02c78fa --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 17:20:00,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 17:20:00,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 17:20:00,131 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 17:20:00,132 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 17:20:00,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 17:20:00,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 17:20:00,136 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 17:20:00,138 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 17:20:00,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 17:20:00,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 17:20:00,141 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 17:20:00,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 17:20:00,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 17:20:00,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 17:20:00,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 17:20:00,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 17:20:00,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 17:20:00,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 17:20:00,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 17:20:00,151 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 17:20:00,152 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 17:20:00,153 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 17:20:00,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 17:20:00,155 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 17:20:00,158 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 17:20:00,158 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 17:20:00,158 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 17:20:00,159 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 17:20:00,160 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 17:20:00,161 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 17:20:00,161 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 17:20:00,162 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 17:20:00,162 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 17:20:00,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 17:20:00,164 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 17:20:00,164 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 17:20:00,165 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 17:20:00,165 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 17:20:00,165 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 17:20:00,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 17:20:00,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 17:20:00,168 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 17:20:00,190 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 17:20:00,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 17:20:00,191 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 17:20:00,191 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 17:20:00,192 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 17:20:00,192 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 17:20:00,193 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 17:20:00,193 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 17:20:00,193 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 17:20:00,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 17:20:00,194 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 17:20:00,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 17:20:00,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 17:20:00,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 17:20:00,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 17:20:00,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 17:20:00,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 17:20:00,195 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 17:20:00,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 17:20:00,196 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 17:20:00,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 17:20:00,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 17:20:00,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 17:20:00,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 17:20:00,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:20:00,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 17:20:00,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 17:20:00,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 17:20:00,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 17:20:00,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 17:20:00,198 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 17:20:00,198 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 17:20:00,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 17:20:00,199 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 614dee6ac528b2b5bcd12e57f515dcc43213e2cedeb5bd1e2531b305b02c78fa [2022-07-19 17:20:00,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 17:20:00,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 17:20:00,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 17:20:00,439 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 17:20:00,439 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 17:20:00,441 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec8_product32.cil.c [2022-07-19 17:20:00,496 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/514bd20b7/3f786a79b5eb48b39f9baaa1d042872c/FLAG8a9885168 [2022-07-19 17:20:01,099 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 17:20:01,099 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product32.cil.c [2022-07-19 17:20:01,119 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/514bd20b7/3f786a79b5eb48b39f9baaa1d042872c/FLAG8a9885168 [2022-07-19 17:20:01,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/514bd20b7/3f786a79b5eb48b39f9baaa1d042872c [2022-07-19 17:20:01,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 17:20:01,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 17:20:01,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 17:20:01,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 17:20:01,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 17:20:01,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:20:01" (1/1) ... [2022-07-19 17:20:01,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@171cd7c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:20:01, skipping insertion in model container [2022-07-19 17:20:01,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:20:01" (1/1) ... [2022-07-19 17:20:01,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 17:20:01,590 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 17:20:01,953 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_spec8_product32.cil.c[37064,37077] [2022-07-19 17:20:02,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:20:02,120 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 17:20:02,185 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_spec8_product32.cil.c[37064,37077] [2022-07-19 17:20:02,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:20:02,264 INFO L208 MainTranslator]: Completed translation [2022-07-19 17:20:02,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:20:02 WrapperNode [2022-07-19 17:20:02,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 17:20:02,265 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 17:20:02,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 17:20:02,266 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 17:20:02,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:20:02" (1/1) ... [2022-07-19 17:20:02,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:20:02" (1/1) ... [2022-07-19 17:20:02,357 INFO L137 Inliner]: procedures = 135, calls = 242, calls flagged for inlining = 62, calls inlined = 54, statements flattened = 1001 [2022-07-19 17:20:02,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 17:20:02,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 17:20:02,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 17:20:02,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 17:20:02,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:20:02" (1/1) ... [2022-07-19 17:20:02,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:20:02" (1/1) ... [2022-07-19 17:20:02,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:20:02" (1/1) ... [2022-07-19 17:20:02,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:20:02" (1/1) ... [2022-07-19 17:20:02,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:20:02" (1/1) ... [2022-07-19 17:20:02,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:20:02" (1/1) ... [2022-07-19 17:20:02,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:20:02" (1/1) ... [2022-07-19 17:20:02,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 17:20:02,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 17:20:02,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 17:20:02,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 17:20:02,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:20:02" (1/1) ... [2022-07-19 17:20:02,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:20:02,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:20:02,450 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) [2022-07-19 17:20:02,469 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 [2022-07-19 17:20:02,497 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-07-19 17:20:02,497 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-07-19 17:20:02,497 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-07-19 17:20:02,498 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-07-19 17:20:02,498 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-07-19 17:20:02,498 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-07-19 17:20:02,498 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-07-19 17:20:02,499 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-07-19 17:20:02,511 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-07-19 17:20:02,511 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-07-19 17:20:02,512 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-07-19 17:20:02,512 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-07-19 17:20:02,512 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-07-19 17:20:02,512 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-07-19 17:20:02,512 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-07-19 17:20:02,512 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-07-19 17:20:02,513 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-07-19 17:20:02,513 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-07-19 17:20:02,513 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-07-19 17:20:02,514 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-07-19 17:20:02,514 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-07-19 17:20:02,514 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-07-19 17:20:02,514 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-07-19 17:20:02,514 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-07-19 17:20:02,514 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-07-19 17:20:02,515 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-07-19 17:20:02,515 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-07-19 17:20:02,515 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-07-19 17:20:02,515 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-07-19 17:20:02,515 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-07-19 17:20:02,515 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-07-19 17:20:02,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 17:20:02,516 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-07-19 17:20:02,516 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-07-19 17:20:02,516 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-07-19 17:20:02,517 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-07-19 17:20:02,517 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-07-19 17:20:02,517 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-07-19 17:20:02,517 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-07-19 17:20:02,517 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-07-19 17:20:02,518 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-07-19 17:20:02,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-07-19 17:20:02,518 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-07-19 17:20:02,518 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-07-19 17:20:02,518 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-07-19 17:20:02,519 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-07-19 17:20:02,519 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-07-19 17:20:02,519 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-07-19 17:20:02,519 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-07-19 17:20:02,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-07-19 17:20:02,520 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-07-19 17:20:02,520 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-07-19 17:20:02,521 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-07-19 17:20:02,521 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-07-19 17:20:02,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 17:20:02,522 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-07-19 17:20:02,522 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-07-19 17:20:02,523 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-07-19 17:20:02,523 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-07-19 17:20:02,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 17:20:02,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 17:20:02,719 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 17:20:02,721 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 17:20:03,472 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 17:20:03,489 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 17:20:03,489 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-19 17:20:03,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:20:03 BoogieIcfgContainer [2022-07-19 17:20:03,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 17:20:03,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 17:20:03,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 17:20:03,502 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 17:20:03,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 05:20:01" (1/3) ... [2022-07-19 17:20:03,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ed6e9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:20:03, skipping insertion in model container [2022-07-19 17:20:03,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:20:02" (2/3) ... [2022-07-19 17:20:03,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ed6e9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:20:03, skipping insertion in model container [2022-07-19 17:20:03,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:20:03" (3/3) ... [2022-07-19 17:20:03,505 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec8_product32.cil.c [2022-07-19 17:20:03,539 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 17:20:03,540 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 17:20:03,599 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 17:20:03,605 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@67dac817, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@62d8e06d [2022-07-19 17:20:03,606 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 17:20:03,612 INFO L276 IsEmpty]: Start isEmpty. Operand has 426 states, 331 states have (on average 1.5498489425981874) internal successors, (513), 336 states have internal predecessors, (513), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-07-19 17:20:03,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-19 17:20:03,634 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:20:03,635 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:20:03,635 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:20:03,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:20:03,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1326838393, now seen corresponding path program 1 times [2022-07-19 17:20:03,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:20:03,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633867791] [2022-07-19 17:20:03,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:20:03,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:20:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:03,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:20:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:04,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:20:04,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:04,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:20:04,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:04,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:20:04,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:04,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:20:04,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:04,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 17:20:04,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:04,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-19 17:20:04,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:04,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 17:20:04,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:04,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-19 17:20:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:04,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-19 17:20:04,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:04,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-19 17:20:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:04,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-19 17:20:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:04,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-19 17:20:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:04,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-19 17:20:04,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:04,140 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-19 17:20:04,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:20:04,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633867791] [2022-07-19 17:20:04,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633867791] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:20:04,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703869295] [2022-07-19 17:20:04,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:20:04,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:20:04,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:20:04,145 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) [2022-07-19 17:20:04,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 17:20:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:04,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-19 17:20:04,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:20:04,513 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-19 17:20:04,513 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:20:04,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703869295] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:20:04,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:20:04,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-07-19 17:20:04,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826906484] [2022-07-19 17:20:04,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:20:04,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 17:20:04,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:20:04,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 17:20:04,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 17:20:04,547 INFO L87 Difference]: Start difference. First operand has 426 states, 331 states have (on average 1.5498489425981874) internal successors, (513), 336 states have internal predecessors, (513), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:20:04,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:20:04,607 INFO L93 Difference]: Finished difference Result 659 states and 976 transitions. [2022-07-19 17:20:04,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 17:20:04,611 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 110 [2022-07-19 17:20:04,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:20:04,627 INFO L225 Difference]: With dead ends: 659 [2022-07-19 17:20:04,627 INFO L226 Difference]: Without dead ends: 419 [2022-07-19 17:20:04,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 17:20:04,637 INFO L413 NwaCegarLoop]: 639 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:20:04,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:20:04,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-07-19 17:20:04,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 419. [2022-07-19 17:20:04,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 325 states have (on average 1.5446153846153847) internal successors, (502), 329 states have internal predecessors, (502), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2022-07-19 17:20:04,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 631 transitions. [2022-07-19 17:20:04,710 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 631 transitions. Word has length 110 [2022-07-19 17:20:04,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:20:04,711 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 631 transitions. [2022-07-19 17:20:04,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:20:04,712 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 631 transitions. [2022-07-19 17:20:04,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-07-19 17:20:04,719 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:20:04,719 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:20:04,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-19 17:20:04,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-07-19 17:20:04,944 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:20:04,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:20:04,944 INFO L85 PathProgramCache]: Analyzing trace with hash 124080943, now seen corresponding path program 1 times [2022-07-19 17:20:04,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:20:04,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445818928] [2022-07-19 17:20:04,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:20:04,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:20:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:05,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:20:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:05,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:20:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:05,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:20:05,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:05,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:20:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:05,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:20:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:05,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 17:20:05,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:05,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 17:20:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:05,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-19 17:20:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:05,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 17:20:05,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:05,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 17:20:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:05,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-19 17:20:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:05,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-19 17:20:05,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:05,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-19 17:20:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:05,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-19 17:20:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:05,197 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-19 17:20:05,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:20:05,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445818928] [2022-07-19 17:20:05,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445818928] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:20:05,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407614133] [2022-07-19 17:20:05,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:20:05,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:20:05,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:20:05,200 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) [2022-07-19 17:20:05,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-19 17:20:05,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:05,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 17:20:05,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:20:05,561 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-19 17:20:05,563 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:20:05,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407614133] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:20:05,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:20:05,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-19 17:20:05,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926356407] [2022-07-19 17:20:05,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:20:05,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:20:05,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:20:05,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:20:05,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:20:05,568 INFO L87 Difference]: Start difference. First operand 419 states and 631 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:20:05,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:20:05,608 INFO L93 Difference]: Finished difference Result 649 states and 954 transitions. [2022-07-19 17:20:05,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:20:05,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 111 [2022-07-19 17:20:05,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:20:05,612 INFO L225 Difference]: With dead ends: 649 [2022-07-19 17:20:05,613 INFO L226 Difference]: Without dead ends: 422 [2022-07-19 17:20:05,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:20:05,615 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 1 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1256 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 [2022-07-19 17:20:05,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1256 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:20:05,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2022-07-19 17:20:05,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 421. [2022-07-19 17:20:05,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 327 states have (on average 1.5412844036697249) internal successors, (504), 331 states have internal predecessors, (504), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2022-07-19 17:20:05,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 633 transitions. [2022-07-19 17:20:05,642 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 633 transitions. Word has length 111 [2022-07-19 17:20:05,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:20:05,643 INFO L495 AbstractCegarLoop]: Abstraction has 421 states and 633 transitions. [2022-07-19 17:20:05,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:20:05,643 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 633 transitions. [2022-07-19 17:20:05,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-19 17:20:05,648 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:20:05,648 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:20:05,675 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-19 17:20:05,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-07-19 17:20:05,871 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:20:05,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:20:05,872 INFO L85 PathProgramCache]: Analyzing trace with hash 3061390, now seen corresponding path program 1 times [2022-07-19 17:20:05,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:20:05,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917588910] [2022-07-19 17:20:05,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:20:05,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:20:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:05,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:20:05,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:05,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:20:05,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:05,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:20:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:05,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:20:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:05,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:20:05,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:06,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 17:20:06,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:06,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-19 17:20:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:06,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 17:20:06,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:06,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-19 17:20:06,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:06,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-19 17:20:06,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:06,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 17:20:06,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:06,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-19 17:20:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:06,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-19 17:20:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:06,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-19 17:20:06,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:06,053 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-19 17:20:06,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:20:06,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917588910] [2022-07-19 17:20:06,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917588910] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:20:06,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204819237] [2022-07-19 17:20:06,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:20:06,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:20:06,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:20:06,056 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) [2022-07-19 17:20:06,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-19 17:20:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:06,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 1185 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 17:20:06,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:20:06,349 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-19 17:20:06,349 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:20:06,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204819237] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:20:06,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:20:06,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-19 17:20:06,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021715730] [2022-07-19 17:20:06,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:20:06,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:20:06,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:20:06,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:20:06,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:20:06,353 INFO L87 Difference]: Start difference. First operand 421 states and 633 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:20:06,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:20:06,386 INFO L93 Difference]: Finished difference Result 890 states and 1358 transitions. [2022-07-19 17:20:06,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:20:06,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2022-07-19 17:20:06,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:20:06,390 INFO L225 Difference]: With dead ends: 890 [2022-07-19 17:20:06,390 INFO L226 Difference]: Without dead ends: 496 [2022-07-19 17:20:06,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:20:06,393 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 134 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1236 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 [2022-07-19 17:20:06,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1236 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:20:06,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-07-19 17:20:06,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 488. [2022-07-19 17:20:06,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 380 states have (on average 1.5605263157894738) internal successors, (593), 384 states have internal predecessors, (593), 79 states have call successors, (79), 28 states have call predecessors, (79), 28 states have return successors, (78), 77 states have call predecessors, (78), 78 states have call successors, (78) [2022-07-19 17:20:06,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 750 transitions. [2022-07-19 17:20:06,418 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 750 transitions. Word has length 120 [2022-07-19 17:20:06,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:20:06,418 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 750 transitions. [2022-07-19 17:20:06,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:20:06,419 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 750 transitions. [2022-07-19 17:20:06,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-07-19 17:20:06,425 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:20:06,425 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:20:06,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-19 17:20:06,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:20:06,640 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:20:06,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:20:06,640 INFO L85 PathProgramCache]: Analyzing trace with hash -801670110, now seen corresponding path program 1 times [2022-07-19 17:20:06,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:20:06,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708972721] [2022-07-19 17:20:06,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:20:06,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:20:06,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:06,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:20:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:06,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:20:06,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:06,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:20:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:06,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:20:06,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:06,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:20:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:06,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 17:20:06,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:06,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-19 17:20:06,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:06,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-19 17:20:06,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:06,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-19 17:20:06,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:06,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 17:20:06,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:06,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 17:20:06,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:06,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-19 17:20:06,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:06,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-19 17:20:06,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:06,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-19 17:20:06,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:06,765 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-19 17:20:06,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:20:06,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708972721] [2022-07-19 17:20:06,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708972721] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:20:06,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174213205] [2022-07-19 17:20:06,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:20:06,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:20:06,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:20:06,769 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) [2022-07-19 17:20:06,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-19 17:20:07,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:07,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 1192 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-19 17:20:07,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:20:07,105 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-19 17:20:07,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:20:07,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174213205] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:20:07,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:20:07,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-07-19 17:20:07,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766583821] [2022-07-19 17:20:07,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:20:07,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:20:07,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:20:07,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:20:07,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 17:20:07,108 INFO L87 Difference]: Start difference. First operand 488 states and 750 transitions. Second operand has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:20:07,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:20:07,169 INFO L93 Difference]: Finished difference Result 967 states and 1490 transitions. [2022-07-19 17:20:07,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:20:07,169 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2022-07-19 17:20:07,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:20:07,173 INFO L225 Difference]: With dead ends: 967 [2022-07-19 17:20:07,173 INFO L226 Difference]: Without dead ends: 490 [2022-07-19 17:20:07,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:20:07,176 INFO L413 NwaCegarLoop]: 622 mSDtfsCounter, 152 mSDsluCounter, 1691 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2313 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:20:07,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 2313 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:20:07,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2022-07-19 17:20:07,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2022-07-19 17:20:07,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 381 states have (on average 1.5590551181102361) internal successors, (594), 386 states have internal predecessors, (594), 79 states have call successors, (79), 28 states have call predecessors, (79), 29 states have return successors, (80), 77 states have call predecessors, (80), 78 states have call successors, (80) [2022-07-19 17:20:07,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 753 transitions. [2022-07-19 17:20:07,198 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 753 transitions. Word has length 121 [2022-07-19 17:20:07,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:20:07,199 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 753 transitions. [2022-07-19 17:20:07,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:20:07,199 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 753 transitions. [2022-07-19 17:20:07,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-19 17:20:07,202 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:20:07,202 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:20:07,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-19 17:20:07,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:20:07,424 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:20:07,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:20:07,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1133217474, now seen corresponding path program 1 times [2022-07-19 17:20:07,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:20:07,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668045546] [2022-07-19 17:20:07,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:20:07,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:20:07,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:07,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:20:07,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:07,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:20:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:07,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:20:07,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:07,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:20:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:07,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-19 17:20:07,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:07,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-19 17:20:07,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:07,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-19 17:20:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:07,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-19 17:20:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:07,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-19 17:20:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:07,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-19 17:20:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:07,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:20:07,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:07,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-19 17:20:07,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:07,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-19 17:20:07,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:07,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-19 17:20:07,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:07,566 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-19 17:20:07,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:20:07,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668045546] [2022-07-19 17:20:07,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668045546] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:20:07,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049748903] [2022-07-19 17:20:07,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:20:07,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:20:07,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:20:07,569 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) [2022-07-19 17:20:07,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-19 17:20:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:07,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-19 17:20:07,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:20:07,897 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-19 17:20:07,898 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:20:07,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049748903] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:20:07,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:20:07,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-07-19 17:20:07,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761839087] [2022-07-19 17:20:07,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:20:07,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:20:07,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:20:07,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:20:07,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-07-19 17:20:07,900 INFO L87 Difference]: Start difference. First operand 490 states and 753 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:20:07,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:20:07,965 INFO L93 Difference]: Finished difference Result 969 states and 1495 transitions. [2022-07-19 17:20:07,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:20:07,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 122 [2022-07-19 17:20:07,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:20:07,969 INFO L225 Difference]: With dead ends: 969 [2022-07-19 17:20:07,969 INFO L226 Difference]: Without dead ends: 492 [2022-07-19 17:20:07,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-07-19 17:20:07,972 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 151 mSDsluCounter, 1682 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2302 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:20:07,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 2302 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:20:07,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-07-19 17:20:07,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 492. [2022-07-19 17:20:07,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 382 states have (on average 1.557591623036649) internal successors, (595), 388 states have internal predecessors, (595), 79 states have call successors, (79), 28 states have call predecessors, (79), 30 states have return successors, (85), 77 states have call predecessors, (85), 78 states have call successors, (85) [2022-07-19 17:20:07,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 759 transitions. [2022-07-19 17:20:07,994 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 759 transitions. Word has length 122 [2022-07-19 17:20:07,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:20:07,994 INFO L495 AbstractCegarLoop]: Abstraction has 492 states and 759 transitions. [2022-07-19 17:20:07,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:20:07,995 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 759 transitions. [2022-07-19 17:20:07,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-07-19 17:20:07,997 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:20:07,997 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:20:08,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-19 17:20:08,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:20:08,220 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:20:08,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:20:08,220 INFO L85 PathProgramCache]: Analyzing trace with hash 520778597, now seen corresponding path program 1 times [2022-07-19 17:20:08,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:20:08,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007098070] [2022-07-19 17:20:08,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:20:08,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:20:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:08,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:20:08,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:08,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:20:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:08,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:20:08,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:08,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:20:08,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:08,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:20:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:08,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 17:20:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:08,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-19 17:20:08,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:08,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 17:20:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:08,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-19 17:20:08,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:08,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-19 17:20:08,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:08,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-19 17:20:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:08,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-19 17:20:08,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:08,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-19 17:20:08,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:08,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-19 17:20:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:08,342 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-19 17:20:08,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:20:08,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007098070] [2022-07-19 17:20:08,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007098070] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:20:08,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:20:08,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 17:20:08,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334393577] [2022-07-19 17:20:08,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:20:08,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 17:20:08,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:20:08,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 17:20:08,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 17:20:08,345 INFO L87 Difference]: Start difference. First operand 492 states and 759 transitions. Second operand has 9 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:20:10,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:20:10,299 INFO L93 Difference]: Finished difference Result 1096 states and 1712 transitions. [2022-07-19 17:20:10,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 17:20:10,300 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 123 [2022-07-19 17:20:10,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:20:10,305 INFO L225 Difference]: With dead ends: 1096 [2022-07-19 17:20:10,306 INFO L226 Difference]: Without dead ends: 627 [2022-07-19 17:20:10,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-07-19 17:20:10,309 INFO L413 NwaCegarLoop]: 687 mSDtfsCounter, 1572 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2294 mSolverCounterSat, 583 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1592 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 2877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 583 IncrementalHoareTripleChecker+Valid, 2294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-19 17:20:10,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1592 Valid, 1672 Invalid, 2877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [583 Valid, 2294 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-19 17:20:10,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2022-07-19 17:20:10,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 492. [2022-07-19 17:20:10,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 382 states have (on average 1.557591623036649) internal successors, (595), 388 states have internal predecessors, (595), 79 states have call successors, (79), 28 states have call predecessors, (79), 30 states have return successors, (84), 77 states have call predecessors, (84), 78 states have call successors, (84) [2022-07-19 17:20:10,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 758 transitions. [2022-07-19 17:20:10,376 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 758 transitions. Word has length 123 [2022-07-19 17:20:10,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:20:10,378 INFO L495 AbstractCegarLoop]: Abstraction has 492 states and 758 transitions. [2022-07-19 17:20:10,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:20:10,378 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 758 transitions. [2022-07-19 17:20:10,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-19 17:20:10,383 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:20:10,384 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:20:10,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 17:20:10,384 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:20:10,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:20:10,385 INFO L85 PathProgramCache]: Analyzing trace with hash -117310433, now seen corresponding path program 2 times [2022-07-19 17:20:10,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:20:10,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739155129] [2022-07-19 17:20:10,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:20:10,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:20:10,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:10,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:20:10,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:10,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:20:10,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:10,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:20:10,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:10,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:20:10,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:10,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:20:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:10,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-19 17:20:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:10,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-19 17:20:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:10,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 17:20:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:10,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-19 17:20:10,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:10,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-19 17:20:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:10,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-19 17:20:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:10,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-19 17:20:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:10,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-19 17:20:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:10,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-19 17:20:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:10,516 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-19 17:20:10,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:20:10,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739155129] [2022-07-19 17:20:10,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739155129] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:20:10,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:20:10,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 17:20:10,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831746966] [2022-07-19 17:20:10,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:20:10,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 17:20:10,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:20:10,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 17:20:10,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 17:20:10,518 INFO L87 Difference]: Start difference. First operand 492 states and 758 transitions. Second operand has 9 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:20:12,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:20:12,452 INFO L93 Difference]: Finished difference Result 1098 states and 1715 transitions. [2022-07-19 17:20:12,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 17:20:12,453 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 124 [2022-07-19 17:20:12,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:20:12,459 INFO L225 Difference]: With dead ends: 1098 [2022-07-19 17:20:12,459 INFO L226 Difference]: Without dead ends: 629 [2022-07-19 17:20:12,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-07-19 17:20:12,462 INFO L413 NwaCegarLoop]: 688 mSDtfsCounter, 1578 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2276 mSolverCounterSat, 582 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 2858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 582 IncrementalHoareTripleChecker+Valid, 2276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-19 17:20:12,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1599 Valid, 1673 Invalid, 2858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [582 Valid, 2276 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-19 17:20:12,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2022-07-19 17:20:12,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 494. [2022-07-19 17:20:12,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 383 states have (on average 1.556135770234987) internal successors, (596), 390 states have internal predecessors, (596), 79 states have call successors, (79), 28 states have call predecessors, (79), 31 states have return successors, (86), 77 states have call predecessors, (86), 78 states have call successors, (86) [2022-07-19 17:20:12,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 761 transitions. [2022-07-19 17:20:12,505 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 761 transitions. Word has length 124 [2022-07-19 17:20:12,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:20:12,505 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 761 transitions. [2022-07-19 17:20:12,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:20:12,506 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 761 transitions. [2022-07-19 17:20:12,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-07-19 17:20:12,508 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:20:12,508 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:20:12,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 17:20:12,508 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:20:12,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:20:12,509 INFO L85 PathProgramCache]: Analyzing trace with hash -350067798, now seen corresponding path program 1 times [2022-07-19 17:20:12,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:20:12,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517619877] [2022-07-19 17:20:12,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:20:12,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:20:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:12,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:20:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:12,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:20:12,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:12,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:20:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:12,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:20:12,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:12,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:20:12,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:12,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:20:12,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:12,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 17:20:12,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:12,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-19 17:20:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:12,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 17:20:12,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:12,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-19 17:20:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:12,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-19 17:20:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:12,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-19 17:20:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:12,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-19 17:20:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:12,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-19 17:20:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:12,671 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-19 17:20:12,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:20:12,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517619877] [2022-07-19 17:20:12,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517619877] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:20:12,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:20:12,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 17:20:12,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28975498] [2022-07-19 17:20:12,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:20:12,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 17:20:12,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:20:12,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 17:20:12,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-19 17:20:12,674 INFO L87 Difference]: Start difference. First operand 494 states and 761 transitions. Second operand has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-19 17:20:15,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:20:15,165 INFO L93 Difference]: Finished difference Result 1096 states and 1710 transitions. [2022-07-19 17:20:15,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 17:20:15,166 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 125 [2022-07-19 17:20:15,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:20:15,170 INFO L225 Difference]: With dead ends: 1096 [2022-07-19 17:20:15,170 INFO L226 Difference]: Without dead ends: 629 [2022-07-19 17:20:15,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-07-19 17:20:15,172 INFO L413 NwaCegarLoop]: 637 mSDtfsCounter, 1811 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3895 mSolverCounterSat, 679 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1811 SdHoareTripleChecker+Valid, 1995 SdHoareTripleChecker+Invalid, 4574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 679 IncrementalHoareTripleChecker+Valid, 3895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:20:15,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1811 Valid, 1995 Invalid, 4574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [679 Valid, 3895 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-19 17:20:15,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2022-07-19 17:20:15,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 494. [2022-07-19 17:20:15,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 383 states have (on average 1.556135770234987) internal successors, (596), 390 states have internal predecessors, (596), 79 states have call successors, (79), 28 states have call predecessors, (79), 31 states have return successors, (85), 77 states have call predecessors, (85), 78 states have call successors, (85) [2022-07-19 17:20:15,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 760 transitions. [2022-07-19 17:20:15,200 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 760 transitions. Word has length 125 [2022-07-19 17:20:15,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:20:15,201 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 760 transitions. [2022-07-19 17:20:15,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-19 17:20:15,201 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 760 transitions. [2022-07-19 17:20:15,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-07-19 17:20:15,203 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:20:15,204 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:20:15,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 17:20:15,204 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:20:15,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:20:15,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1505298567, now seen corresponding path program 2 times [2022-07-19 17:20:15,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:20:15,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759734017] [2022-07-19 17:20:15,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:20:15,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:20:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:15,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:20:15,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:15,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:20:15,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:15,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:20:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:15,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:20:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:15,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:20:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:15,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:20:15,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:15,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-19 17:20:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:15,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-19 17:20:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:15,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-19 17:20:15,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:15,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-19 17:20:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:15,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-19 17:20:15,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:15,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 17:20:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:15,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-19 17:20:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:15,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-19 17:20:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:15,349 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-19 17:20:15,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:20:15,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759734017] [2022-07-19 17:20:15,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759734017] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:20:15,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:20:15,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 17:20:15,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038035856] [2022-07-19 17:20:15,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:20:15,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 17:20:15,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:20:15,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 17:20:15,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-19 17:20:15,352 INFO L87 Difference]: Start difference. First operand 494 states and 760 transitions. Second operand has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-19 17:20:17,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:20:17,868 INFO L93 Difference]: Finished difference Result 1098 states and 1716 transitions. [2022-07-19 17:20:17,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 17:20:17,868 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 126 [2022-07-19 17:20:17,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:20:17,872 INFO L225 Difference]: With dead ends: 1098 [2022-07-19 17:20:17,872 INFO L226 Difference]: Without dead ends: 631 [2022-07-19 17:20:17,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-07-19 17:20:17,874 INFO L413 NwaCegarLoop]: 659 mSDtfsCounter, 1753 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4107 mSolverCounterSat, 638 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1753 SdHoareTripleChecker+Valid, 2017 SdHoareTripleChecker+Invalid, 4745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 638 IncrementalHoareTripleChecker+Valid, 4107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:20:17,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1753 Valid, 2017 Invalid, 4745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [638 Valid, 4107 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-19 17:20:17,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2022-07-19 17:20:17,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 496. [2022-07-19 17:20:17,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 384 states have (on average 1.5546875) internal successors, (597), 392 states have internal predecessors, (597), 79 states have call successors, (79), 28 states have call predecessors, (79), 32 states have return successors, (90), 77 states have call predecessors, (90), 78 states have call successors, (90) [2022-07-19 17:20:17,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 766 transitions. [2022-07-19 17:20:17,908 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 766 transitions. Word has length 126 [2022-07-19 17:20:17,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:20:17,909 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 766 transitions. [2022-07-19 17:20:17,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-19 17:20:17,910 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 766 transitions. [2022-07-19 17:20:17,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-19 17:20:17,912 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:20:17,912 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:20:17,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 17:20:17,913 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:20:17,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:20:17,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1793057201, now seen corresponding path program 1 times [2022-07-19 17:20:17,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:20:17,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263716989] [2022-07-19 17:20:17,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:20:17,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:20:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:17,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:20:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:18,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:20:18,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:18,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:20:18,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:18,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:20:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:18,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:20:18,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:18,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:20:18,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:18,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-19 17:20:18,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:18,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-19 17:20:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:18,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-19 17:20:18,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:18,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-19 17:20:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:18,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-19 17:20:18,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:18,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 17:20:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:18,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-19 17:20:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:18,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-19 17:20:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:18,096 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-19 17:20:18,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:20:18,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263716989] [2022-07-19 17:20:18,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263716989] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:20:18,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999262500] [2022-07-19 17:20:18,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:20:18,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:20:18,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:20:18,107 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) [2022-07-19 17:20:18,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-19 17:20:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:18,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 17:20:18,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:20:18,375 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:20:18,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 17:20:18,453 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:20:18,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999262500] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 17:20:18,454 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 17:20:18,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-07-19 17:20:18,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790076996] [2022-07-19 17:20:18,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 17:20:18,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-19 17:20:18,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:20:18,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-19 17:20:18,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-07-19 17:20:18,456 INFO L87 Difference]: Start difference. First operand 496 states and 766 transitions. Second operand has 15 states, 14 states have (on average 10.285714285714286) internal successors, (144), 11 states have internal predecessors, (144), 4 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-19 17:20:21,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:20:21,816 INFO L93 Difference]: Finished difference Result 1957 states and 3274 transitions. [2022-07-19 17:20:21,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-19 17:20:21,818 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.285714285714286) internal successors, (144), 11 states have internal predecessors, (144), 4 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 127 [2022-07-19 17:20:21,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:20:21,827 INFO L225 Difference]: With dead ends: 1957 [2022-07-19 17:20:21,827 INFO L226 Difference]: Without dead ends: 1492 [2022-07-19 17:20:21,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-07-19 17:20:21,830 INFO L413 NwaCegarLoop]: 820 mSDtfsCounter, 4354 mSDsluCounter, 2855 mSDsCounter, 0 mSdLazyCounter, 5591 mSolverCounterSat, 1648 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4356 SdHoareTripleChecker+Valid, 3675 SdHoareTripleChecker+Invalid, 7239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1648 IncrementalHoareTripleChecker+Valid, 5591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:20:21,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4356 Valid, 3675 Invalid, 7239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1648 Valid, 5591 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-19 17:20:21,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2022-07-19 17:20:21,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 914. [2022-07-19 17:20:21,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 723 states have (on average 1.6085753803596128) internal successors, (1163), 731 states have internal predecessors, (1163), 158 states have call successors, (158), 28 states have call predecessors, (158), 32 states have return successors, (179), 156 states have call predecessors, (179), 157 states have call successors, (179) [2022-07-19 17:20:21,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1500 transitions. [2022-07-19 17:20:21,898 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1500 transitions. Word has length 127 [2022-07-19 17:20:21,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:20:21,898 INFO L495 AbstractCegarLoop]: Abstraction has 914 states and 1500 transitions. [2022-07-19 17:20:21,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.285714285714286) internal successors, (144), 11 states have internal predecessors, (144), 4 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-19 17:20:21,899 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1500 transitions. [2022-07-19 17:20:21,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-07-19 17:20:21,903 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:20:21,903 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:20:21,929 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-07-19 17:20:22,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:20:22,124 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:20:22,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:20:22,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1120843304, now seen corresponding path program 1 times [2022-07-19 17:20:22,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:20:22,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390747303] [2022-07-19 17:20:22,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:20:22,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:20:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:22,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:20:22,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:22,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:20:22,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:22,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:20:22,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:22,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:20:22,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:22,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:20:22,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:22,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:20:22,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:22,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-19 17:20:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:22,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-19 17:20:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:22,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-19 17:20:22,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:22,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 17:20:22,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:22,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-19 17:20:22,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:22,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-19 17:20:22,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:22,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-19 17:20:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:22,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-19 17:20:22,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:22,239 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:20:22,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:20:22,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390747303] [2022-07-19 17:20:22,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390747303] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:20:22,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:20:22,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:20:22,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347594240] [2022-07-19 17:20:22,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:20:22,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:20:22,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:20:22,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:20:22,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:20:22,242 INFO L87 Difference]: Start difference. First operand 914 states and 1500 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:20:23,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:20:23,589 INFO L93 Difference]: Finished difference Result 2283 states and 3842 transitions. [2022-07-19 17:20:23,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:20:23,590 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2022-07-19 17:20:23,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:20:23,596 INFO L225 Difference]: With dead ends: 2283 [2022-07-19 17:20:23,597 INFO L226 Difference]: Without dead ends: 1447 [2022-07-19 17:20:23,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:20:23,600 INFO L413 NwaCegarLoop]: 728 mSDtfsCounter, 1567 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 629 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1585 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 1799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 629 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:20:23,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1585 Valid, 1514 Invalid, 1799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [629 Valid, 1170 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-19 17:20:23,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1447 states. [2022-07-19 17:20:23,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1447 to 1304. [2022-07-19 17:20:23,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 1034 states have (on average 1.627659574468085) internal successors, (1683), 1042 states have internal predecessors, (1683), 237 states have call successors, (237), 28 states have call predecessors, (237), 32 states have return successors, (268), 235 states have call predecessors, (268), 236 states have call successors, (268) [2022-07-19 17:20:23,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 2188 transitions. [2022-07-19 17:20:23,698 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 2188 transitions. Word has length 130 [2022-07-19 17:20:23,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:20:23,698 INFO L495 AbstractCegarLoop]: Abstraction has 1304 states and 2188 transitions. [2022-07-19 17:20:23,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:20:23,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 2188 transitions. [2022-07-19 17:20:23,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-07-19 17:20:23,706 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:20:23,706 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:20:23,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-19 17:20:23,706 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:20:23,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:20:23,707 INFO L85 PathProgramCache]: Analyzing trace with hash 376664275, now seen corresponding path program 1 times [2022-07-19 17:20:23,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:20:23,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266871185] [2022-07-19 17:20:23,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:20:23,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:20:23,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:23,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:20:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:23,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:20:23,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:23,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:20:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:23,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:20:23,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:23,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:20:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:23,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:20:23,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:23,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-19 17:20:23,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:23,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-19 17:20:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:23,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-19 17:20:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:23,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:20:23,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:23,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-19 17:20:23,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:23,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-19 17:20:23,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:23,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-19 17:20:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:23,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-19 17:20:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:23,794 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:20:23,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:20:23,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266871185] [2022-07-19 17:20:23,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266871185] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:20:23,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:20:23,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:20:23,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774440188] [2022-07-19 17:20:23,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:20:23,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:20:23,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:20:23,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:20:23,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:20:23,797 INFO L87 Difference]: Start difference. First operand 1304 states and 2188 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:20:25,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:20:25,186 INFO L93 Difference]: Finished difference Result 3257 states and 5551 transitions. [2022-07-19 17:20:25,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:20:25,186 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 131 [2022-07-19 17:20:25,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:20:25,196 INFO L225 Difference]: With dead ends: 3257 [2022-07-19 17:20:25,196 INFO L226 Difference]: Without dead ends: 2084 [2022-07-19 17:20:25,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:20:25,201 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 1577 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1124 mSolverCounterSat, 643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1596 SdHoareTripleChecker+Valid, 1478 SdHoareTripleChecker+Invalid, 1767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 643 IncrementalHoareTripleChecker+Valid, 1124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:20:25,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1596 Valid, 1478 Invalid, 1767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [643 Valid, 1124 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-19 17:20:25,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2084 states. [2022-07-19 17:20:25,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2084 to 1941. [2022-07-19 17:20:25,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1941 states, 1552 states have (on average 1.637242268041237) internal successors, (2541), 1560 states have internal predecessors, (2541), 356 states have call successors, (356), 28 states have call predecessors, (356), 32 states have return successors, (387), 354 states have call predecessors, (387), 355 states have call successors, (387) [2022-07-19 17:20:25,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1941 states to 1941 states and 3284 transitions. [2022-07-19 17:20:25,354 INFO L78 Accepts]: Start accepts. Automaton has 1941 states and 3284 transitions. Word has length 131 [2022-07-19 17:20:25,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:20:25,354 INFO L495 AbstractCegarLoop]: Abstraction has 1941 states and 3284 transitions. [2022-07-19 17:20:25,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:20:25,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1941 states and 3284 transitions. [2022-07-19 17:20:25,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-07-19 17:20:25,365 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:20:25,365 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:20:25,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-19 17:20:25,365 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:20:25,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:20:25,366 INFO L85 PathProgramCache]: Analyzing trace with hash 26451706, now seen corresponding path program 1 times [2022-07-19 17:20:25,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:20:25,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440423794] [2022-07-19 17:20:25,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:20:25,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:20:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:25,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:20:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:25,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:20:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:25,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:20:25,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:25,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:20:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:25,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:20:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:25,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:20:25,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:25,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-19 17:20:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:25,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-19 17:20:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:25,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-19 17:20:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:25,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-19 17:20:25,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:25,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 17:20:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:25,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-19 17:20:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:25,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-19 17:20:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:25,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-19 17:20:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:25,472 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:20:25,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:20:25,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440423794] [2022-07-19 17:20:25,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440423794] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:20:25,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:20:25,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:20:25,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854399712] [2022-07-19 17:20:25,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:20:25,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:20:25,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:20:25,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:20:25,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:20:25,475 INFO L87 Difference]: Start difference. First operand 1941 states and 3284 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:20:26,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:20:26,806 INFO L93 Difference]: Finished difference Result 4737 states and 8162 transitions. [2022-07-19 17:20:26,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:20:26,807 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2022-07-19 17:20:26,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:20:26,821 INFO L225 Difference]: With dead ends: 4737 [2022-07-19 17:20:26,821 INFO L226 Difference]: Without dead ends: 3062 [2022-07-19 17:20:26,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:20:26,827 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 1576 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1124 mSolverCounterSat, 623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1595 SdHoareTripleChecker+Valid, 1477 SdHoareTripleChecker+Invalid, 1747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 623 IncrementalHoareTripleChecker+Valid, 1124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:20:26,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1595 Valid, 1477 Invalid, 1747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [623 Valid, 1124 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-19 17:20:26,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3062 states. [2022-07-19 17:20:27,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3062 to 2919. [2022-07-19 17:20:27,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2919 states, 2368 states have (on average 1.644847972972973) internal successors, (3895), 2376 states have internal predecessors, (3895), 518 states have call successors, (518), 28 states have call predecessors, (518), 32 states have return successors, (565), 516 states have call predecessors, (565), 517 states have call successors, (565) [2022-07-19 17:20:27,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2919 states to 2919 states and 4978 transitions. [2022-07-19 17:20:27,026 INFO L78 Accepts]: Start accepts. Automaton has 2919 states and 4978 transitions. Word has length 132 [2022-07-19 17:20:27,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:20:27,026 INFO L495 AbstractCegarLoop]: Abstraction has 2919 states and 4978 transitions. [2022-07-19 17:20:27,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:20:27,027 INFO L276 IsEmpty]: Start isEmpty. Operand 2919 states and 4978 transitions. [2022-07-19 17:20:27,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-19 17:20:27,041 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:20:27,042 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:20:27,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-19 17:20:27,042 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:20:27,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:20:27,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1810393266, now seen corresponding path program 1 times [2022-07-19 17:20:27,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:20:27,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715549002] [2022-07-19 17:20:27,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:20:27,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:20:27,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:27,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:20:27,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:27,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:20:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:27,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:20:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:27,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:20:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:27,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:20:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:27,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:20:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:27,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 17:20:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:27,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-19 17:20:27,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:27,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-19 17:20:27,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:27,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-19 17:20:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:27,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 17:20:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:27,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-19 17:20:27,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:27,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-19 17:20:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:27,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-19 17:20:27,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:27,146 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:20:27,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:20:27,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715549002] [2022-07-19 17:20:27,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715549002] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:20:27,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:20:27,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:20:27,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624245601] [2022-07-19 17:20:27,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:20:27,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:20:27,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:20:27,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:20:27,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:20:27,148 INFO L87 Difference]: Start difference. First operand 2919 states and 4978 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:20:28,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:20:28,654 INFO L93 Difference]: Finished difference Result 7076 states and 12297 transitions. [2022-07-19 17:20:28,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:20:28,654 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2022-07-19 17:20:28,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:20:28,673 INFO L225 Difference]: With dead ends: 7076 [2022-07-19 17:20:28,673 INFO L226 Difference]: Without dead ends: 4642 [2022-07-19 17:20:28,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:20:28,679 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 1646 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 645 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1665 SdHoareTripleChecker+Valid, 1454 SdHoareTripleChecker+Invalid, 1746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 645 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:20:28,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1665 Valid, 1454 Invalid, 1746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [645 Valid, 1101 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-19 17:20:28,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4642 states. [2022-07-19 17:20:28,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4642 to 4499. [2022-07-19 17:20:28,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4499 states, 3703 states have (on average 1.6502835538752363) internal successors, (6111), 3711 states have internal predecessors, (6111), 763 states have call successors, (763), 28 states have call predecessors, (763), 32 states have return successors, (836), 761 states have call predecessors, (836), 762 states have call successors, (836) [2022-07-19 17:20:28,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4499 states to 4499 states and 7710 transitions. [2022-07-19 17:20:28,992 INFO L78 Accepts]: Start accepts. Automaton has 4499 states and 7710 transitions. Word has length 133 [2022-07-19 17:20:28,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:20:28,993 INFO L495 AbstractCegarLoop]: Abstraction has 4499 states and 7710 transitions. [2022-07-19 17:20:28,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:20:28,993 INFO L276 IsEmpty]: Start isEmpty. Operand 4499 states and 7710 transitions. [2022-07-19 17:20:29,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-19 17:20:29,010 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:20:29,010 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:20:29,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-19 17:20:29,010 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:20:29,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:20:29,011 INFO L85 PathProgramCache]: Analyzing trace with hash -2086254754, now seen corresponding path program 1 times [2022-07-19 17:20:29,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:20:29,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863929128] [2022-07-19 17:20:29,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:20:29,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:20:29,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:29,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:20:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:29,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:20:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:29,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:20:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:29,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:20:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:29,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:20:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:29,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:20:29,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:29,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-19 17:20:29,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:29,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 17:20:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:29,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-19 17:20:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:29,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-19 17:20:29,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:29,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-19 17:20:29,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:29,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-19 17:20:29,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:29,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-19 17:20:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:29,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-19 17:20:29,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:29,100 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:20:29,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:20:29,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863929128] [2022-07-19 17:20:29,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863929128] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:20:29,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:20:29,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:20:29,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49832437] [2022-07-19 17:20:29,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:20:29,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:20:29,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:20:29,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:20:29,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:20:29,103 INFO L87 Difference]: Start difference. First operand 4499 states and 7710 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:20:30,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:20:30,660 INFO L93 Difference]: Finished difference Result 11247 states and 19626 transitions. [2022-07-19 17:20:30,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:20:30,661 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 134 [2022-07-19 17:20:30,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:20:30,700 INFO L225 Difference]: With dead ends: 11247 [2022-07-19 17:20:30,700 INFO L226 Difference]: Without dead ends: 7485 [2022-07-19 17:20:30,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:20:30,714 INFO L413 NwaCegarLoop]: 717 mSDtfsCounter, 1609 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1627 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 1784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 643 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:20:30,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1627 Valid, 1526 Invalid, 1784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [643 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-19 17:20:30,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7485 states. [2022-07-19 17:20:31,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7485 to 7342. [2022-07-19 17:20:31,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7342 states, 6053 states have (on average 1.6471171320006608) internal successors, (9970), 6061 states have internal predecessors, (9970), 1256 states have call successors, (1256), 28 states have call predecessors, (1256), 32 states have return successors, (1373), 1254 states have call predecessors, (1373), 1255 states have call successors, (1373) [2022-07-19 17:20:31,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7342 states to 7342 states and 12599 transitions. [2022-07-19 17:20:31,237 INFO L78 Accepts]: Start accepts. Automaton has 7342 states and 12599 transitions. Word has length 134 [2022-07-19 17:20:31,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:20:31,238 INFO L495 AbstractCegarLoop]: Abstraction has 7342 states and 12599 transitions. [2022-07-19 17:20:31,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:20:31,239 INFO L276 IsEmpty]: Start isEmpty. Operand 7342 states and 12599 transitions. [2022-07-19 17:20:31,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-19 17:20:31,261 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:20:31,262 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:20:31,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-19 17:20:31,262 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:20:31,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:20:31,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1069215666, now seen corresponding path program 1 times [2022-07-19 17:20:31,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:20:31,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914104330] [2022-07-19 17:20:31,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:20:31,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:20:31,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:31,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:20:31,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:31,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:20:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:31,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:20:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:31,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:20:31,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:31,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:20:31,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:31,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:20:31,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:31,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-19 17:20:31,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:31,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-19 17:20:31,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:31,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-19 17:20:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:31,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-19 17:20:31,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:31,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-19 17:20:31,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:31,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-19 17:20:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:31,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-19 17:20:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:31,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-19 17:20:31,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:31,365 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:20:31,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:20:31,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914104330] [2022-07-19 17:20:31,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914104330] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:20:31,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:20:31,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:20:31,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530715354] [2022-07-19 17:20:31,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:20:31,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:20:31,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:20:31,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:20:31,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:20:31,368 INFO L87 Difference]: Start difference. First operand 7342 states and 12599 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:20:33,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:20:33,106 INFO L93 Difference]: Finished difference Result 18667 states and 32590 transitions. [2022-07-19 17:20:33,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:20:33,107 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 135 [2022-07-19 17:20:33,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:20:33,167 INFO L225 Difference]: With dead ends: 18667 [2022-07-19 17:20:33,167 INFO L226 Difference]: Without dead ends: 12464 [2022-07-19 17:20:33,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:20:33,193 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 1588 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 1131 mSolverCounterSat, 644 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1606 SdHoareTripleChecker+Valid, 1500 SdHoareTripleChecker+Invalid, 1775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 644 IncrementalHoareTripleChecker+Valid, 1131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:20:33,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1606 Valid, 1500 Invalid, 1775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [644 Valid, 1131 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-19 17:20:33,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12464 states. [2022-07-19 17:20:33,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12464 to 12321. [2022-07-19 17:20:33,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12321 states, 10210 states have (on average 1.6475024485798238) internal successors, (16821), 10218 states have internal predecessors, (16821), 2078 states have call successors, (2078), 28 states have call predecessors, (2078), 32 states have return successors, (2273), 2076 states have call predecessors, (2273), 2077 states have call successors, (2273) [2022-07-19 17:20:33,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12321 states to 12321 states and 21172 transitions. [2022-07-19 17:20:33,973 INFO L78 Accepts]: Start accepts. Automaton has 12321 states and 21172 transitions. Word has length 135 [2022-07-19 17:20:33,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:20:33,973 INFO L495 AbstractCegarLoop]: Abstraction has 12321 states and 21172 transitions. [2022-07-19 17:20:33,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:20:33,974 INFO L276 IsEmpty]: Start isEmpty. Operand 12321 states and 21172 transitions. [2022-07-19 17:20:34,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-07-19 17:20:34,003 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:20:34,003 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:20:34,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-19 17:20:34,003 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:20:34,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:20:34,004 INFO L85 PathProgramCache]: Analyzing trace with hash 912684476, now seen corresponding path program 1 times [2022-07-19 17:20:34,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:20:34,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7280706] [2022-07-19 17:20:34,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:20:34,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:20:34,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:34,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:20:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:34,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:20:34,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:34,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:20:34,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:34,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:20:34,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:34,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:20:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:34,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:20:34,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:34,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-19 17:20:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:34,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-19 17:20:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:34,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-19 17:20:34,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:34,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-19 17:20:34,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:34,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-19 17:20:34,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:34,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-19 17:20:34,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:34,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-19 17:20:34,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:34,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-19 17:20:34,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:34,098 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:20:34,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:20:34,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7280706] [2022-07-19 17:20:34,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7280706] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:20:34,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:20:34,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:20:34,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496338600] [2022-07-19 17:20:34,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:20:34,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:20:34,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:20:34,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:20:34,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:20:34,101 INFO L87 Difference]: Start difference. First operand 12321 states and 21172 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:20:36,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:20:36,138 INFO L93 Difference]: Finished difference Result 29625 states and 51450 transitions. [2022-07-19 17:20:36,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:20:36,138 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 136 [2022-07-19 17:20:36,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:20:36,227 INFO L225 Difference]: With dead ends: 29625 [2022-07-19 17:20:36,227 INFO L226 Difference]: Without dead ends: 19417 [2022-07-19 17:20:36,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:20:36,273 INFO L413 NwaCegarLoop]: 680 mSDtfsCounter, 1657 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 669 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1677 SdHoareTripleChecker+Valid, 1445 SdHoareTripleChecker+Invalid, 1738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 669 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:20:36,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1677 Valid, 1445 Invalid, 1738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [669 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-19 17:20:36,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19417 states. [2022-07-19 17:20:37,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19417 to 19274. [2022-07-19 17:20:37,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19274 states, 15960 states have (on average 1.6222431077694235) internal successors, (25891), 15968 states have internal predecessors, (25891), 3281 states have call successors, (3281), 28 states have call predecessors, (3281), 32 states have return successors, (3620), 3279 states have call predecessors, (3620), 3280 states have call successors, (3620) [2022-07-19 17:20:37,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19274 states to 19274 states and 32792 transitions. [2022-07-19 17:20:37,345 INFO L78 Accepts]: Start accepts. Automaton has 19274 states and 32792 transitions. Word has length 136 [2022-07-19 17:20:37,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:20:37,345 INFO L495 AbstractCegarLoop]: Abstraction has 19274 states and 32792 transitions. [2022-07-19 17:20:37,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:20:37,346 INFO L276 IsEmpty]: Start isEmpty. Operand 19274 states and 32792 transitions. [2022-07-19 17:20:37,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-19 17:20:37,371 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:20:37,371 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:20:37,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-19 17:20:37,372 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:20:37,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:20:37,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1455929203, now seen corresponding path program 1 times [2022-07-19 17:20:37,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:20:37,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642733481] [2022-07-19 17:20:37,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:20:37,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:20:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:37,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:20:37,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:37,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:20:37,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:37,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:20:37,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:37,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:20:37,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:37,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:20:37,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:37,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:20:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:37,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-19 17:20:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:37,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-19 17:20:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:37,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 17:20:37,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:37,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-19 17:20:37,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:37,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-19 17:20:37,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:37,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-19 17:20:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:37,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-19 17:20:37,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:37,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-19 17:20:37,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:37,456 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:20:37,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:20:37,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642733481] [2022-07-19 17:20:37,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642733481] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:20:37,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:20:37,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:20:37,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009087923] [2022-07-19 17:20:37,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:20:37,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:20:37,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:20:37,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:20:37,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:20:37,459 INFO L87 Difference]: Start difference. First operand 19274 states and 32792 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:20:40,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:20:40,327 INFO L93 Difference]: Finished difference Result 51057 states and 88368 transitions. [2022-07-19 17:20:40,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:20:40,327 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 137 [2022-07-19 17:20:40,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:20:40,484 INFO L225 Difference]: With dead ends: 51057 [2022-07-19 17:20:40,484 INFO L226 Difference]: Without dead ends: 34538 [2022-07-19 17:20:40,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:20:40,533 INFO L413 NwaCegarLoop]: 714 mSDtfsCounter, 1567 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1124 mSolverCounterSat, 658 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1586 SdHoareTripleChecker+Valid, 1480 SdHoareTripleChecker+Invalid, 1782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 658 IncrementalHoareTripleChecker+Valid, 1124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-19 17:20:40,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1586 Valid, 1480 Invalid, 1782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [658 Valid, 1124 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-19 17:20:40,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34538 states. [2022-07-19 17:20:42,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34538 to 34395. [2022-07-19 17:20:42,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34395 states, 28631 states have (on average 1.6191191366001887) internal successors, (46357), 28639 states have internal predecessors, (46357), 5731 states have call successors, (5731), 28 states have call predecessors, (5731), 32 states have return successors, (6344), 5729 states have call predecessors, (6344), 5730 states have call successors, (6344) [2022-07-19 17:20:42,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34395 states to 34395 states and 58432 transitions. [2022-07-19 17:20:42,422 INFO L78 Accepts]: Start accepts. Automaton has 34395 states and 58432 transitions. Word has length 137 [2022-07-19 17:20:42,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:20:42,422 INFO L495 AbstractCegarLoop]: Abstraction has 34395 states and 58432 transitions. [2022-07-19 17:20:42,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:20:42,423 INFO L276 IsEmpty]: Start isEmpty. Operand 34395 states and 58432 transitions. [2022-07-19 17:20:42,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-19 17:20:42,455 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:20:42,455 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:20:42,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-19 17:20:42,455 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:20:42,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:20:42,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1215744514, now seen corresponding path program 1 times [2022-07-19 17:20:42,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:20:42,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865872563] [2022-07-19 17:20:42,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:20:42,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:20:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:42,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:20:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:42,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:20:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:42,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:20:42,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:42,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:20:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:42,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:20:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:42,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:20:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:42,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-19 17:20:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:42,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 17:20:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:42,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 17:20:42,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:42,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-19 17:20:42,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:42,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-19 17:20:42,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:42,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-19 17:20:42,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:42,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-19 17:20:42,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:42,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-19 17:20:42,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:42,539 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:20:42,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:20:42,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865872563] [2022-07-19 17:20:42,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865872563] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:20:42,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:20:42,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:20:42,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666786225] [2022-07-19 17:20:42,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:20:42,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:20:42,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:20:42,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:20:42,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:20:42,542 INFO L87 Difference]: Start difference. First operand 34395 states and 58432 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:20:46,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:20:46,492 INFO L93 Difference]: Finished difference Result 93929 states and 161767 transitions. [2022-07-19 17:20:46,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:20:46,492 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 138 [2022-07-19 17:20:46,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:20:46,720 INFO L225 Difference]: With dead ends: 93929 [2022-07-19 17:20:46,720 INFO L226 Difference]: Without dead ends: 63205 [2022-07-19 17:20:46,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:20:46,803 INFO L413 NwaCegarLoop]: 721 mSDtfsCounter, 1556 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 1150 mSolverCounterSat, 632 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 1495 SdHoareTripleChecker+Invalid, 1782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 632 IncrementalHoareTripleChecker+Valid, 1150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-19 17:20:46,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1574 Valid, 1495 Invalid, 1782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [632 Valid, 1150 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-19 17:20:46,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63205 states. [2022-07-19 17:20:50,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63205 to 63062. [2022-07-19 17:20:50,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63062 states, 52785 states have (on average 1.6148905939187268) internal successors, (85242), 52793 states have internal predecessors, (85242), 10244 states have call successors, (10244), 28 states have call predecessors, (10244), 32 states have return successors, (11389), 10242 states have call predecessors, (11389), 10243 states have call successors, (11389) [2022-07-19 17:20:50,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63062 states to 63062 states and 106875 transitions. [2022-07-19 17:20:50,404 INFO L78 Accepts]: Start accepts. Automaton has 63062 states and 106875 transitions. Word has length 138 [2022-07-19 17:20:50,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:20:50,405 INFO L495 AbstractCegarLoop]: Abstraction has 63062 states and 106875 transitions. [2022-07-19 17:20:50,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:20:50,405 INFO L276 IsEmpty]: Start isEmpty. Operand 63062 states and 106875 transitions. [2022-07-19 17:20:50,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-19 17:20:50,449 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:20:50,450 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:20:50,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-19 17:20:50,450 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:20:50,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:20:50,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1916980019, now seen corresponding path program 1 times [2022-07-19 17:20:50,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:20:50,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419860477] [2022-07-19 17:20:50,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:20:50,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:20:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:50,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:20:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:50,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:20:50,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:50,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:20:50,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:50,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:20:50,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:50,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:20:50,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:50,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:20:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:50,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 17:20:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:50,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-19 17:20:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:50,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:20:50,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:50,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-19 17:20:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:50,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-19 17:20:50,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:50,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-19 17:20:50,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:50,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-19 17:20:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:50,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-19 17:20:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:20:50,550 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:20:50,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:20:50,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419860477] [2022-07-19 17:20:50,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419860477] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:20:50,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:20:50,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:20:50,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133111105] [2022-07-19 17:20:50,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:20:50,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:20:50,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:20:50,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:20:50,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:20:50,552 INFO L87 Difference]: Start difference. First operand 63062 states and 106875 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:20:56,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:20:56,138 INFO L93 Difference]: Finished difference Result 118305 states and 204144 transitions. [2022-07-19 17:20:56,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:20:56,139 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 139 [2022-07-19 17:20:56,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:20:56,632 INFO L225 Difference]: With dead ends: 118305 [2022-07-19 17:20:56,632 INFO L226 Difference]: Without dead ends: 118078 [2022-07-19 17:20:56,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:20:56,708 INFO L413 NwaCegarLoop]: 682 mSDtfsCounter, 1642 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 656 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1662 SdHoareTripleChecker+Valid, 1448 SdHoareTripleChecker+Invalid, 1759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 656 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:20:56,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1662 Valid, 1448 Invalid, 1759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [656 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-19 17:20:56,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118078 states. [2022-07-19 17:21:02,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118078 to 117935. [2022-07-19 17:21:02,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117935 states, 99290 states have (on average 1.6095276462886494) internal successors, (159810), 99298 states have internal predecessors, (159810), 18612 states have call successors, (18612), 28 states have call predecessors, (18612), 32 states have return successors, (20803), 18610 states have call predecessors, (20803), 18611 states have call successors, (20803) [2022-07-19 17:21:03,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117935 states to 117935 states and 199225 transitions. [2022-07-19 17:21:03,272 INFO L78 Accepts]: Start accepts. Automaton has 117935 states and 199225 transitions. Word has length 139 [2022-07-19 17:21:03,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:21:03,273 INFO L495 AbstractCegarLoop]: Abstraction has 117935 states and 199225 transitions. [2022-07-19 17:21:03,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:21:03,273 INFO L276 IsEmpty]: Start isEmpty. Operand 117935 states and 199225 transitions. [2022-07-19 17:21:03,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-19 17:21:03,316 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:21:03,316 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:21:03,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-19 17:21:03,317 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:21:03,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:21:03,317 INFO L85 PathProgramCache]: Analyzing trace with hash 58900803, now seen corresponding path program 1 times [2022-07-19 17:21:03,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:21:03,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890820052] [2022-07-19 17:21:03,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:21:03,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:21:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:21:03,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:21:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:21:03,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:21:03,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:21:03,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:21:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:21:03,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:21:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:21:03,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:21:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:21:03,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:21:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:21:03,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-19 17:21:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:21:03,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-19 17:21:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:21:03,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-19 17:21:03,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:21:03,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-19 17:21:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:21:03,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-19 17:21:03,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:21:03,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-19 17:21:03,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:21:03,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-19 17:21:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:21:03,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-19 17:21:03,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:21:03,531 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:21:03,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:21:03,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890820052] [2022-07-19 17:21:03,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890820052] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:21:03,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:21:03,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-19 17:21:03,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143682858] [2022-07-19 17:21:03,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:21:03,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-19 17:21:03,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:21:03,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-19 17:21:03,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2022-07-19 17:21:03,534 INFO L87 Difference]: Start difference. First operand 117935 states and 199225 transitions. Second operand has 18 states, 16 states have (on average 6.0) internal successors, (96), 12 states have internal predecessors, (96), 6 states have call successors, (17), 7 states have call predecessors, (17), 4 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2022-07-19 17:21:19,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:21:19,908 INFO L93 Difference]: Finished difference Result 235634 states and 409989 transitions. [2022-07-19 17:21:19,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-07-19 17:21:19,908 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 6.0) internal successors, (96), 12 states have internal predecessors, (96), 6 states have call successors, (17), 7 states have call predecessors, (17), 4 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 140 [2022-07-19 17:21:19,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:21:21,425 INFO L225 Difference]: With dead ends: 235634 [2022-07-19 17:21:21,425 INFO L226 Difference]: Without dead ends: 235413 [2022-07-19 17:21:21,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1287 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=872, Invalid=3820, Unknown=0, NotChecked=0, Total=4692 [2022-07-19 17:21:21,533 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 6029 mSDsluCounter, 3212 mSDsCounter, 0 mSdLazyCounter, 11193 mSolverCounterSat, 3032 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6029 SdHoareTripleChecker+Valid, 3976 SdHoareTripleChecker+Invalid, 14225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3032 IncrementalHoareTripleChecker+Valid, 11193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:21:21,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6029 Valid, 3976 Invalid, 14225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3032 Valid, 11193 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-07-19 17:21:21,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235413 states.