./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 26d71a6766df17a2d23a86b348a9251fef4bcae90cf6020641e74c486ac2b1eb --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 12:30:15,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 12:30:15,254 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 12:30:15,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 12:30:15,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 12:30:15,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 12:30:15,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 12:30:15,310 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 12:30:15,312 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 12:30:15,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 12:30:15,318 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 12:30:15,319 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 12:30:15,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 12:30:15,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 12:30:15,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 12:30:15,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 12:30:15,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 12:30:15,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 12:30:15,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 12:30:15,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 12:30:15,336 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 12:30:15,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 12:30:15,338 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 12:30:15,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 12:30:15,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 12:30:15,345 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 12:30:15,345 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 12:30:15,346 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 12:30:15,347 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 12:30:15,347 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 12:30:15,348 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 12:30:15,348 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 12:30:15,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 12:30:15,350 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 12:30:15,351 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 12:30:15,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 12:30:15,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 12:30:15,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 12:30:15,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 12:30:15,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 12:30:15,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 12:30:15,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 12:30:15,358 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 12:30:15,386 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 12:30:15,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 12:30:15,387 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 12:30:15,387 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 12:30:15,388 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 12:30:15,388 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 12:30:15,388 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 12:30:15,389 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 12:30:15,389 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 12:30:15,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 12:30:15,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 12:30:15,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 12:30:15,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 12:30:15,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 12:30:15,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 12:30:15,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 12:30:15,391 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 12:30:15,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 12:30:15,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 12:30:15,392 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 12:30:15,393 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 12:30:15,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:30:15,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 12:30:15,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 12:30:15,393 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 12:30:15,393 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 12:30:15,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 12:30:15,394 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 12:30:15,394 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 12:30:15,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 12:30:15,394 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26d71a6766df17a2d23a86b348a9251fef4bcae90cf6020641e74c486ac2b1eb [2022-07-12 12:30:15,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 12:30:15,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 12:30:15,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 12:30:15,692 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 12:30:15,695 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 12:30:15,696 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i [2022-07-12 12:30:15,742 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/214b15d29/03381c113eed4687aa535f90630e1c8f/FLAG0363bcb8c [2022-07-12 12:30:16,511 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 12:30:16,512 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i [2022-07-12 12:30:16,560 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/214b15d29/03381c113eed4687aa535f90630e1c8f/FLAG0363bcb8c [2022-07-12 12:30:16,724 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/214b15d29/03381c113eed4687aa535f90630e1c8f [2022-07-12 12:30:16,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 12:30:16,727 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 12:30:16,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 12:30:16,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 12:30:16,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 12:30:16,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:30:16" (1/1) ... [2022-07-12 12:30:16,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@125494f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:30:16, skipping insertion in model container [2022-07-12 12:30:16,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:30:16" (1/1) ... [2022-07-12 12:30:16,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 12:30:16,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:30:17,860 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/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i[172824,172837] [2022-07-12 12:30:18,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:30:18,660 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 12:30:18,807 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/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i[172824,172837] [2022-07-12 12:30:19,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:30:19,168 INFO L208 MainTranslator]: Completed translation [2022-07-12 12:30:19,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:30:19 WrapperNode [2022-07-12 12:30:19,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 12:30:19,172 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 12:30:19,172 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 12:30:19,172 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 12:30:19,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:30:19" (1/1) ... [2022-07-12 12:30:19,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:30:19" (1/1) ... [2022-07-12 12:30:19,463 INFO L137 Inliner]: procedures = 310, calls = 1780, calls flagged for inlining = 174, calls inlined = 157, statements flattened = 5104 [2022-07-12 12:30:19,464 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 12:30:19,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 12:30:19,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 12:30:19,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 12:30:19,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:30:19" (1/1) ... [2022-07-12 12:30:19,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:30:19" (1/1) ... [2022-07-12 12:30:19,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:30:19" (1/1) ... [2022-07-12 12:30:19,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:30:19" (1/1) ... [2022-07-12 12:30:19,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:30:19" (1/1) ... [2022-07-12 12:30:19,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:30:19" (1/1) ... [2022-07-12 12:30:19,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:30:19" (1/1) ... [2022-07-12 12:30:19,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 12:30:19,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 12:30:19,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 12:30:19,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 12:30:19,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:30:19" (1/1) ... [2022-07-12 12:30:19,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:30:19,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:30:19,750 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) [2022-07-12 12:30:19,759 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 [2022-07-12 12:30:19,786 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-12 12:30:19,786 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-12 12:30:19,786 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2022-07-12 12:30:19,786 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2022-07-12 12:30:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 12:30:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 12:30:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-12 12:30:19,787 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-12 12:30:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_dmac_soft_reset [2022-07-12 12:30:19,787 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_dmac_soft_reset [2022-07-12 12:30:19,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 12:30:19,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 12:30:19,788 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2022-07-12 12:30:19,788 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2022-07-12 12:30:19,788 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 12:30:19,788 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 12:30:19,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 12:30:19,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 12:30:19,789 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_remove [2022-07-12 12:30:19,789 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_remove [2022-07-12 12:30:19,789 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-12 12:30:19,789 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_eeprom_send_cmd [2022-07-12 12:30:19,789 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_eeprom_send_cmd [2022-07-12 12:30:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-12 12:30:19,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-12 12:30:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-12 12:30:19,790 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-12 12:30:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_free_rx_ring [2022-07-12 12:30:19,790 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_free_rx_ring [2022-07-12 12:30:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 12:30:19,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 12:30:19,791 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-12 12:30:19,791 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-12 12:30:19,791 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 12:30:19,791 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 12:30:19,791 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-12 12:30:19,792 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-12 12:30:19,792 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 12:30:19,792 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 12:30:19,793 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_reg_read [2022-07-12 12:30:19,793 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_reg_read [2022-07-12 12:30:19,793 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 12:30:19,793 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 12:30:19,793 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_set_mac_address [2022-07-12 12:30:19,794 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_set_mac_address [2022-07-12 12:30:19,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 12:30:19,794 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_get_stats [2022-07-12 12:30:19,794 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_get_stats [2022-07-12 12:30:19,794 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-07-12 12:30:19,794 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-07-12 12:30:19,795 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-12 12:30:19,795 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-12 12:30:19,795 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-07-12 12:30:19,796 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-07-12 12:30:19,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 12:30:19,796 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-12 12:30:19,796 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-12 12:30:19,797 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-12 12:30:19,797 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-12 12:30:19,798 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-12 12:30:19,798 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-12 12:30:19,798 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-12 12:30:19,798 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-12 12:30:19,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-12 12:30:19,799 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_open [2022-07-12 12:30:19,799 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_open [2022-07-12 12:30:19,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 12:30:19,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 12:30:19,799 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 12:30:19,799 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 12:30:19,800 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-07-12 12:30:19,800 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-07-12 12:30:19,800 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-12 12:30:19,800 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-12 12:30:19,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 12:30:19,801 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-12 12:30:19,801 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-12 12:30:19,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 12:30:19,801 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-12 12:30:19,801 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-12 12:30:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 12:30:19,802 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 12:30:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 12:30:19,802 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 12:30:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-12 12:30:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-12 12:30:19,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-12 12:30:19,803 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 12:30:19,803 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 12:30:19,803 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-12 12:30:19,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-12 12:30:19,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-12 12:30:19,804 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_eeprom_enable_access [2022-07-12 12:30:19,804 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_eeprom_enable_access [2022-07-12 12:30:19,804 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-07-12 12:30:19,805 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-07-12 12:30:19,805 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_reg_write [2022-07-12 12:30:19,805 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_reg_write [2022-07-12 12:30:19,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 12:30:19,806 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 12:30:19,806 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 12:30:19,806 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 12:30:19,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 12:30:19,806 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-12 12:30:19,807 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-12 12:30:19,807 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-07-12 12:30:19,807 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-07-12 12:30:19,807 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 12:30:19,807 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 12:30:19,807 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 12:30:19,808 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 12:30:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-12 12:30:19,808 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-12 12:30:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 12:30:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-12 12:30:19,809 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-12 12:30:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-07-12 12:30:19,809 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-07-12 12:30:19,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 12:30:19,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 12:30:19,812 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_set_multicast_list [2022-07-12 12:30:19,812 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_set_multicast_list [2022-07-12 12:30:19,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 12:30:19,814 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-12 12:30:19,814 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-12 12:30:19,814 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-12 12:30:19,814 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-12 12:30:19,814 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_alloc_rx_buffer [2022-07-12 12:30:19,819 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_alloc_rx_buffer [2022-07-12 12:30:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 12:30:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-12 12:30:19,820 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-12 12:30:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_stop_rx [2022-07-12 12:30:19,820 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_stop_rx [2022-07-12 12:30:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-12 12:30:19,820 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-12 12:30:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 12:30:19,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 12:30:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 12:30:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-12 12:30:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-12 12:30:19,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-12 12:30:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-07-12 12:30:19,821 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-07-12 12:30:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_isr [2022-07-12 12:30:19,821 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_isr [2022-07-12 12:30:19,822 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2022-07-12 12:30:19,822 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2022-07-12 12:30:19,822 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_do_ioctl [2022-07-12 12:30:19,822 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_do_ioctl [2022-07-12 12:30:19,822 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_poll_controller [2022-07-12 12:30:19,822 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_poll_controller [2022-07-12 12:30:19,822 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-12 12:30:19,823 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-12 12:30:19,823 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-07-12 12:30:19,823 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-07-12 12:30:19,823 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 12:30:19,823 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 12:30:19,823 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_stop_tx [2022-07-12 12:30:19,823 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_stop_tx [2022-07-12 12:30:19,823 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-12 12:30:19,824 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-12 12:30:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-12 12:30:19,824 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-12 12:30:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 12:30:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_free_tx_ring [2022-07-12 12:30:19,824 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_free_tx_ring [2022-07-12 12:30:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-07-12 12:30:19,825 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-07-12 12:30:19,825 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_pci_flush_write [2022-07-12 12:30:19,825 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_pci_flush_write [2022-07-12 12:30:19,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 12:30:19,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 12:30:19,825 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-12 12:30:19,825 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-12 12:30:20,603 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 12:30:20,607 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 12:30:20,945 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 12:30:24,131 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 12:30:24,154 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 12:30:24,154 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 12:30:24,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:30:24 BoogieIcfgContainer [2022-07-12 12:30:24,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 12:30:24,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 12:30:24,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 12:30:24,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 12:30:24,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 12:30:16" (1/3) ... [2022-07-12 12:30:24,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5467b4b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:30:24, skipping insertion in model container [2022-07-12 12:30:24,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:30:19" (2/3) ... [2022-07-12 12:30:24,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5467b4b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:30:24, skipping insertion in model container [2022-07-12 12:30:24,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:30:24" (3/3) ... [2022-07-12 12:30:24,170 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i [2022-07-12 12:30:24,182 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 12:30:24,183 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 12:30:24,251 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 12:30:24,256 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@7e5774ec, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@679d38ad [2022-07-12 12:30:24,256 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 12:30:24,265 INFO L276 IsEmpty]: Start isEmpty. Operand has 1789 states, 1295 states have (on average 1.430888030888031) internal successors, (1853), 1322 states have internal predecessors, (1853), 415 states have call successors, (415), 78 states have call predecessors, (415), 77 states have return successors, (408), 405 states have call predecessors, (408), 408 states have call successors, (408) [2022-07-12 12:30:24,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-12 12:30:24,280 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:30:24,280 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:30:24,281 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:30:24,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:30:24,285 INFO L85 PathProgramCache]: Analyzing trace with hash 497767634, now seen corresponding path program 1 times [2022-07-12 12:30:24,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:30:24,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237545595] [2022-07-12 12:30:24,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:30:24,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:30:24,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:24,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:30:24,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:24,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:30:24,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:24,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:30:24,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:24,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:30:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:24,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:30:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:24,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:30:24,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:24,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:30:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:24,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:30:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:24,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:30:24,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:24,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 12:30:24,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:24,883 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-12 12:30:24,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:30:24,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237545595] [2022-07-12 12:30:24,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237545595] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:30:24,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:30:24,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:30:24,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24657204] [2022-07-12 12:30:24,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:30:24,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:30:24,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:30:24,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:30:24,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:30:24,927 INFO L87 Difference]: Start difference. First operand has 1789 states, 1295 states have (on average 1.430888030888031) internal successors, (1853), 1322 states have internal predecessors, (1853), 415 states have call successors, (415), 78 states have call predecessors, (415), 77 states have return successors, (408), 405 states have call predecessors, (408), 408 states have call successors, (408) Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-12 12:30:29,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:30:29,994 INFO L93 Difference]: Finished difference Result 5490 states and 8345 transitions. [2022-07-12 12:30:29,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:30:29,998 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 80 [2022-07-12 12:30:29,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:30:30,051 INFO L225 Difference]: With dead ends: 5490 [2022-07-12 12:30:30,052 INFO L226 Difference]: Without dead ends: 3626 [2022-07-12 12:30:30,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:30:30,073 INFO L413 NwaCegarLoop]: 2741 mSDtfsCounter, 3241 mSDsluCounter, 2525 mSDsCounter, 0 mSdLazyCounter, 2155 mSolverCounterSat, 1196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3627 SdHoareTripleChecker+Valid, 5266 SdHoareTripleChecker+Invalid, 3351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1196 IncrementalHoareTripleChecker+Valid, 2155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-07-12 12:30:30,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3627 Valid, 5266 Invalid, 3351 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1196 Valid, 2155 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-07-12 12:30:30,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3626 states. [2022-07-12 12:30:30,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3626 to 3448. [2022-07-12 12:30:30,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3448 states, 2494 states have (on average 1.318765036086608) internal successors, (3289), 2530 states have internal predecessors, (3289), 801 states have call successors, (801), 153 states have call predecessors, (801), 152 states have return successors, (800), 794 states have call predecessors, (800), 800 states have call successors, (800) [2022-07-12 12:30:30,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3448 states to 3448 states and 4890 transitions. [2022-07-12 12:30:30,374 INFO L78 Accepts]: Start accepts. Automaton has 3448 states and 4890 transitions. Word has length 80 [2022-07-12 12:30:30,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:30:30,376 INFO L495 AbstractCegarLoop]: Abstraction has 3448 states and 4890 transitions. [2022-07-12 12:30:30,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-12 12:30:30,376 INFO L276 IsEmpty]: Start isEmpty. Operand 3448 states and 4890 transitions. [2022-07-12 12:30:30,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-12 12:30:30,387 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:30:30,387 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:30:30,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 12:30:30,388 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:30:30,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:30:30,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1152572705, now seen corresponding path program 1 times [2022-07-12 12:30:30,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:30:30,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574448720] [2022-07-12 12:30:30,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:30:30,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:30:30,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:30,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:30:30,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:30,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:30:30,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:30,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:30:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:30,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:30:30,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:30,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:30:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:30,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:30:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:30,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:30:30,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:30,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:30:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:30,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:30:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:30,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 12:30:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:30,775 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-12 12:30:30,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:30:30,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574448720] [2022-07-12 12:30:30,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574448720] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:30:30,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:30:30,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 12:30:30,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866699958] [2022-07-12 12:30:30,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:30:30,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 12:30:30,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:30:30,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 12:30:30,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:30:30,782 INFO L87 Difference]: Start difference. First operand 3448 states and 4890 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-12 12:30:37,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:30:37,586 INFO L93 Difference]: Finished difference Result 10645 states and 15172 transitions. [2022-07-12 12:30:37,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 12:30:37,587 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 85 [2022-07-12 12:30:37,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:30:37,714 INFO L225 Difference]: With dead ends: 10645 [2022-07-12 12:30:37,715 INFO L226 Difference]: Without dead ends: 7218 [2022-07-12 12:30:37,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-12 12:30:37,729 INFO L413 NwaCegarLoop]: 2704 mSDtfsCounter, 3172 mSDsluCounter, 5558 mSDsCounter, 0 mSdLazyCounter, 5001 mSolverCounterSat, 1167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3572 SdHoareTripleChecker+Valid, 8262 SdHoareTripleChecker+Invalid, 6168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1167 IncrementalHoareTripleChecker+Valid, 5001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-07-12 12:30:37,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3572 Valid, 8262 Invalid, 6168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1167 Valid, 5001 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-07-12 12:30:37,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7218 states. [2022-07-12 12:30:37,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7218 to 6934. [2022-07-12 12:30:37,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6934 states, 5018 states have (on average 1.3184535671582305) internal successors, (6616), 5092 states have internal predecessors, (6616), 1605 states have call successors, (1605), 305 states have call predecessors, (1605), 310 states have return successors, (1624), 1596 states have call predecessors, (1624), 1604 states have call successors, (1624) [2022-07-12 12:30:37,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6934 states to 6934 states and 9845 transitions. [2022-07-12 12:30:37,988 INFO L78 Accepts]: Start accepts. Automaton has 6934 states and 9845 transitions. Word has length 85 [2022-07-12 12:30:37,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:30:37,990 INFO L495 AbstractCegarLoop]: Abstraction has 6934 states and 9845 transitions. [2022-07-12 12:30:37,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-12 12:30:37,990 INFO L276 IsEmpty]: Start isEmpty. Operand 6934 states and 9845 transitions. [2022-07-12 12:30:38,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2022-07-12 12:30:38,021 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:30:38,022 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 11, 11, 11, 10, 10, 10, 7, 7, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:30:38,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 12:30:38,022 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:30:38,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:30:38,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1563537257, now seen corresponding path program 1 times [2022-07-12 12:30:38,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:30:38,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244328996] [2022-07-12 12:30:38,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:30:38,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:30:38,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:30:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:30:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:30:38,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:30:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:30:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:30:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:30:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:30:38,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:30:38,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 12:30:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 12:30:38,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:30:38,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 12:30:38,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 12:30:38,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 12:30:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 12:30:38,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 12:30:38,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 12:30:38,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 12:30:38,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:30:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 12:30:38,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 12:30:38,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:30:38,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 12:30:38,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:30:38,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 12:30:38,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 12:30:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 12:30:38,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 12:30:38,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 12:30:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:30:38,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:38,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 12:30:38,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:39,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 12:30:39,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:39,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-12 12:30:39,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:39,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 12:30:39,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:39,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 12:30:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:39,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:30:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:39,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-12 12:30:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:39,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-12 12:30:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:39,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 12:30:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:39,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:30:39,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:39,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 12:30:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:39,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-12 12:30:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:39,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-12 12:30:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:39,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 12:30:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:39,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-12 12:30:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:39,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-12 12:30:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:39,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-12 12:30:39,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:39,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-12 12:30:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:39,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:30:39,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:39,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-12 12:30:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:39,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-12 12:30:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:39,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-07-12 12:30:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:39,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-12 12:30:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:39,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-12 12:30:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:39,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-12 12:30:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:39,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-12 12:30:39,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 12:30:39,187 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Auxiliary term must not be contained in any collection at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.SmtFreePredicateFactory$AuxiliaryTerm.hashCode(SmtFreePredicateFactory.java:134) at java.base/java.util.HashMap.hash(HashMap.java:339) at java.base/java.util.HashMap.containsKey(HashMap.java:591) at java.base/java.util.HashSet.contains(HashSet.java:204) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.ContainsQuantifier$QuantifierFinder.walk(ContainsQuantifier.java:64) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.ContainsQuantifier.containsQuantifier(ContainsQuantifier.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckStatisticsGenerator.reportSequenceOfInterpolants(TraceCheckStatisticsGenerator.java:107) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:248) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:409) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:300) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:260) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:152) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-12 12:30:39,192 INFO L158 Benchmark]: Toolchain (without parser) took 22464.48ms. Allocated memory was 100.7MB in the beginning and 614.5MB in the end (delta: 513.8MB). Free memory was 49.8MB in the beginning and 417.6MB in the end (delta: -367.8MB). Peak memory consumption was 147.7MB. Max. memory is 16.1GB. [2022-07-12 12:30:39,192 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 100.7MB. Free memory was 79.3MB in the beginning and 79.2MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 12:30:39,193 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2442.54ms. Allocated memory was 100.7MB in the beginning and 153.1MB in the end (delta: 52.4MB). Free memory was 49.6MB in the beginning and 75.5MB in the end (delta: -25.9MB). Peak memory consumption was 70.6MB. Max. memory is 16.1GB. [2022-07-12 12:30:39,193 INFO L158 Benchmark]: Boogie Procedure Inliner took 292.21ms. Allocated memory was 153.1MB in the beginning and 251.7MB in the end (delta: 98.6MB). Free memory was 75.5MB in the beginning and 177.5MB in the end (delta: -102.0MB). Peak memory consumption was 37.2MB. Max. memory is 16.1GB. [2022-07-12 12:30:39,194 INFO L158 Benchmark]: Boogie Preprocessor took 255.06ms. Allocated memory is still 251.7MB. Free memory was 177.5MB in the beginning and 146.9MB in the end (delta: 30.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-07-12 12:30:39,194 INFO L158 Benchmark]: RCFGBuilder took 4437.58ms. Allocated memory was 251.7MB in the beginning and 400.6MB in the end (delta: 148.9MB). Free memory was 146.9MB in the beginning and 303.6MB in the end (delta: -156.7MB). Peak memory consumption was 173.4MB. Max. memory is 16.1GB. [2022-07-12 12:30:39,195 INFO L158 Benchmark]: TraceAbstraction took 15030.61ms. Allocated memory was 400.6MB in the beginning and 614.5MB in the end (delta: 213.9MB). Free memory was 302.5MB in the beginning and 417.6MB in the end (delta: -115.1MB). Peak memory consumption was 98.8MB. Max. memory is 16.1GB. [2022-07-12 12:30:39,196 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 100.7MB. Free memory was 79.3MB in the beginning and 79.2MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2442.54ms. Allocated memory was 100.7MB in the beginning and 153.1MB in the end (delta: 52.4MB). Free memory was 49.6MB in the beginning and 75.5MB in the end (delta: -25.9MB). Peak memory consumption was 70.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 292.21ms. Allocated memory was 153.1MB in the beginning and 251.7MB in the end (delta: 98.6MB). Free memory was 75.5MB in the beginning and 177.5MB in the end (delta: -102.0MB). Peak memory consumption was 37.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 255.06ms. Allocated memory is still 251.7MB. Free memory was 177.5MB in the beginning and 146.9MB in the end (delta: 30.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * RCFGBuilder took 4437.58ms. Allocated memory was 251.7MB in the beginning and 400.6MB in the end (delta: 148.9MB). Free memory was 146.9MB in the beginning and 303.6MB in the end (delta: -156.7MB). Peak memory consumption was 173.4MB. Max. memory is 16.1GB. * TraceAbstraction took 15030.61ms. Allocated memory was 400.6MB in the beginning and 614.5MB in the end (delta: 213.9MB). Free memory was 302.5MB in the beginning and 417.6MB in the end (delta: -115.1MB). Peak memory consumption was 98.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Auxiliary term must not be contained in any collection de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Auxiliary term must not be contained in any collection: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.SmtFreePredicateFactory$AuxiliaryTerm.hashCode(SmtFreePredicateFactory.java:134) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-07-12 12:30:39,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 64bit --witnessprinter.graph.data.programhash 26d71a6766df17a2d23a86b348a9251fef4bcae90cf6020641e74c486ac2b1eb --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 12:30:41,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 12:30:41,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 12:30:41,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 12:30:41,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 12:30:41,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 12:30:41,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 12:30:41,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 12:30:41,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 12:30:41,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 12:30:41,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 12:30:41,303 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 12:30:41,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 12:30:41,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 12:30:41,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 12:30:41,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 12:30:41,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 12:30:41,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 12:30:41,318 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 12:30:41,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 12:30:41,323 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 12:30:41,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 12:30:41,326 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 12:30:41,327 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 12:30:41,328 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 12:30:41,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 12:30:41,336 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 12:30:41,336 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 12:30:41,337 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 12:30:41,337 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 12:30:41,338 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 12:30:41,338 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 12:30:41,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 12:30:41,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 12:30:41,342 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 12:30:41,343 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 12:30:41,343 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 12:30:41,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 12:30:41,344 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 12:30:41,344 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 12:30:41,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 12:30:41,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 12:30:41,353 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 12:30:41,381 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 12:30:41,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 12:30:41,381 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 12:30:41,382 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 12:30:41,382 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 12:30:41,382 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 12:30:41,383 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 12:30:41,383 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 12:30:41,383 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 12:30:41,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 12:30:41,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 12:30:41,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 12:30:41,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 12:30:41,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 12:30:41,384 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 12:30:41,385 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 12:30:41,385 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 12:30:41,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 12:30:41,385 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 12:30:41,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 12:30:41,386 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 12:30:41,386 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 12:30:41,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 12:30:41,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:30:41,387 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 12:30:41,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 12:30:41,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 12:30:41,387 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 12:30:41,387 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 12:30:41,388 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 12:30:41,388 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 12:30:41,388 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 12:30:41,388 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 12:30:41,388 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26d71a6766df17a2d23a86b348a9251fef4bcae90cf6020641e74c486ac2b1eb [2022-07-12 12:30:41,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 12:30:41,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 12:30:41,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 12:30:41,741 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 12:30:41,742 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 12:30:41,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i [2022-07-12 12:30:41,814 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b1aa8639/90cd43a82efa4eee8534428e52f6ea63/FLAGbf86594be [2022-07-12 12:30:42,574 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 12:30:42,575 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i [2022-07-12 12:30:42,623 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b1aa8639/90cd43a82efa4eee8534428e52f6ea63/FLAGbf86594be [2022-07-12 12:30:42,784 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b1aa8639/90cd43a82efa4eee8534428e52f6ea63 [2022-07-12 12:30:42,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 12:30:42,788 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 12:30:42,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 12:30:42,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 12:30:42,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 12:30:42,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:30:42" (1/1) ... [2022-07-12 12:30:42,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7987c3fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:30:42, skipping insertion in model container [2022-07-12 12:30:42,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:30:42" (1/1) ... [2022-07-12 12:30:42,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 12:30:42,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:30:43,973 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/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i[172824,172837] [2022-07-12 12:30:44,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:30:44,831 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 12:30:44,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:30:45,081 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/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i[172824,172837] [2022-07-12 12:30:45,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:30:45,342 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 12:30:45,488 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/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i[172824,172837] [2022-07-12 12:30:45,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:30:45,778 INFO L208 MainTranslator]: Completed translation [2022-07-12 12:30:45,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:30:45 WrapperNode [2022-07-12 12:30:45,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 12:30:45,780 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 12:30:45,780 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 12:30:45,780 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 12:30:45,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:30:45" (1/1) ... [2022-07-12 12:30:45,898 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:30:45" (1/1) ... [2022-07-12 12:30:46,085 INFO L137 Inliner]: procedures = 324, calls = 1780, calls flagged for inlining = 174, calls inlined = 157, statements flattened = 4537 [2022-07-12 12:30:46,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 12:30:46,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 12:30:46,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 12:30:46,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 12:30:46,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:30:45" (1/1) ... [2022-07-12 12:30:46,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:30:45" (1/1) ... [2022-07-12 12:30:46,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:30:45" (1/1) ... [2022-07-12 12:30:46,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:30:45" (1/1) ... [2022-07-12 12:30:46,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:30:45" (1/1) ... [2022-07-12 12:30:46,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:30:45" (1/1) ... [2022-07-12 12:30:46,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:30:45" (1/1) ... [2022-07-12 12:30:46,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 12:30:46,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 12:30:46,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 12:30:46,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 12:30:46,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:30:45" (1/1) ... [2022-07-12 12:30:46,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:30:46,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:30:46,337 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) [2022-07-12 12:30:46,358 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 [2022-07-12 12:30:46,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 12:30:46,372 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-12 12:30:46,372 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-12 12:30:46,373 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2022-07-12 12:30:46,373 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2022-07-12 12:30:46,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 12:30:46,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 12:30:46,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 12:30:46,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 12:30:46,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 12:30:46,374 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-12 12:30:46,374 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-12 12:30:46,374 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_dmac_soft_reset [2022-07-12 12:30:46,374 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_dmac_soft_reset [2022-07-12 12:30:46,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 12:30:46,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 12:30:46,375 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2022-07-12 12:30:46,375 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2022-07-12 12:30:46,375 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 12:30:46,375 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 12:30:46,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 12:30:46,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 12:30:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_remove [2022-07-12 12:30:46,376 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_remove [2022-07-12 12:30:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-12 12:30:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_eeprom_send_cmd [2022-07-12 12:30:46,376 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_eeprom_send_cmd [2022-07-12 12:30:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-12 12:30:46,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-12 12:30:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-12 12:30:46,377 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-12 12:30:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_free_rx_ring [2022-07-12 12:30:46,377 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_free_rx_ring [2022-07-12 12:30:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 12:30:46,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 12:30:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-12 12:30:46,378 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-12 12:30:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 12:30:46,378 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 12:30:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-12 12:30:46,379 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-12 12:30:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 12:30:46,379 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 12:30:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_reg_read [2022-07-12 12:30:46,379 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_reg_read [2022-07-12 12:30:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 12:30:46,380 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 12:30:46,380 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_set_mac_address [2022-07-12 12:30:46,381 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_set_mac_address [2022-07-12 12:30:46,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 12:30:46,381 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_get_stats [2022-07-12 12:30:46,382 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_get_stats [2022-07-12 12:30:46,382 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-07-12 12:30:46,382 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-07-12 12:30:46,382 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-12 12:30:46,383 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-12 12:30:46,383 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-07-12 12:30:46,383 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-07-12 12:30:46,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 12:30:46,383 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-12 12:30:46,384 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-12 12:30:46,384 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-12 12:30:46,384 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-12 12:30:46,384 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-12 12:30:46,384 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-12 12:30:46,384 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-12 12:30:46,385 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-12 12:30:46,385 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-12 12:30:46,385 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_open [2022-07-12 12:30:46,385 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_open [2022-07-12 12:30:46,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 12:30:46,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 12:30:46,386 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 12:30:46,386 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 12:30:46,386 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-07-12 12:30:46,386 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-07-12 12:30:46,387 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-12 12:30:46,387 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-12 12:30:46,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 12:30:46,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 12:30:46,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 12:30:46,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 12:30:46,388 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-12 12:30:46,388 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-12 12:30:46,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 12:30:46,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 12:30:46,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 12:30:46,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 12:30:46,389 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-12 12:30:46,389 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-12 12:30:46,390 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 12:30:46,390 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 12:30:46,390 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 12:30:46,391 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 12:30:46,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-12 12:30:46,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-12 12:30:46,391 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 12:30:46,391 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 12:30:46,391 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-12 12:30:46,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-12 12:30:46,392 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_eeprom_enable_access [2022-07-12 12:30:46,392 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_eeprom_enable_access [2022-07-12 12:30:46,392 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-07-12 12:30:46,392 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-07-12 12:30:46,392 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_reg_write [2022-07-12 12:30:46,393 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_reg_write [2022-07-12 12:30:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 12:30:46,393 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 12:30:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 12:30:46,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 12:30:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-12 12:30:46,394 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-12 12:30:46,396 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-07-12 12:30:46,396 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-07-12 12:30:46,397 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 12:30:46,397 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 12:30:46,398 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 12:30:46,399 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 12:30:46,399 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-12 12:30:46,399 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-12 12:30:46,399 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-12 12:30:46,400 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-12 12:30:46,400 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-07-12 12:30:46,400 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-07-12 12:30:46,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 12:30:46,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 12:30:46,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 12:30:46,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 12:30:46,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 12:30:46,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 12:30:46,400 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_set_multicast_list [2022-07-12 12:30:46,400 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_set_multicast_list [2022-07-12 12:30:46,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 12:30:46,401 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-12 12:30:46,401 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-12 12:30:46,401 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-12 12:30:46,401 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-12 12:30:46,401 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_alloc_rx_buffer [2022-07-12 12:30:46,401 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_alloc_rx_buffer [2022-07-12 12:30:46,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 12:30:46,401 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-12 12:30:46,401 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-12 12:30:46,401 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_stop_rx [2022-07-12 12:30:46,401 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_stop_rx [2022-07-12 12:30:46,401 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-12 12:30:46,402 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-12 12:30:46,402 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 12:30:46,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 12:30:46,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 12:30:46,402 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-12 12:30:46,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 12:30:46,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 12:30:46,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-12 12:30:46,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-12 12:30:46,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 12:30:46,402 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-07-12 12:30:46,402 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-07-12 12:30:46,402 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_isr [2022-07-12 12:30:46,403 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_isr [2022-07-12 12:30:46,403 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2022-07-12 12:30:46,403 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2022-07-12 12:30:46,403 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_do_ioctl [2022-07-12 12:30:46,403 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_do_ioctl [2022-07-12 12:30:46,403 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_poll_controller [2022-07-12 12:30:46,403 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_poll_controller [2022-07-12 12:30:46,404 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-12 12:30:46,404 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-12 12:30:46,404 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-07-12 12:30:46,404 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-07-12 12:30:46,404 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 12:30:46,404 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 12:30:46,404 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_stop_tx [2022-07-12 12:30:46,405 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_stop_tx [2022-07-12 12:30:46,405 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-12 12:30:46,405 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-12 12:30:46,405 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-12 12:30:46,405 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-12 12:30:46,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 12:30:46,405 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_free_tx_ring [2022-07-12 12:30:46,405 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_free_tx_ring [2022-07-12 12:30:46,406 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-07-12 12:30:46,406 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-07-12 12:30:46,406 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_pci_flush_write [2022-07-12 12:30:46,406 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_pci_flush_write [2022-07-12 12:30:46,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 12:30:46,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 12:30:46,406 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-12 12:30:46,407 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-12 12:30:47,062 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 12:30:47,065 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 12:30:47,681 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 12:31:23,779 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 12:31:23,794 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 12:31:23,794 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 12:31:23,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:31:23 BoogieIcfgContainer [2022-07-12 12:31:23,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 12:31:23,800 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 12:31:23,800 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 12:31:23,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 12:31:23,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 12:30:42" (1/3) ... [2022-07-12 12:31:23,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c10bf77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:31:23, skipping insertion in model container [2022-07-12 12:31:23,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:30:45" (2/3) ... [2022-07-12 12:31:23,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c10bf77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:31:23, skipping insertion in model container [2022-07-12 12:31:23,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:31:23" (3/3) ... [2022-07-12 12:31:23,805 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i [2022-07-12 12:31:23,817 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 12:31:23,818 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 12:31:23,898 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 12:31:23,904 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@31c08900, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@40d2a47 [2022-07-12 12:31:23,905 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 12:31:23,916 INFO L276 IsEmpty]: Start isEmpty. Operand has 1610 states, 1116 states have (on average 1.3387096774193548) internal successors, (1494), 1143 states have internal predecessors, (1494), 415 states have call successors, (415), 78 states have call predecessors, (415), 77 states have return successors, (408), 405 states have call predecessors, (408), 408 states have call successors, (408) [2022-07-12 12:31:23,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-12 12:31:23,929 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:31:23,930 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:31:23,931 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:31:23,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:31:23,935 INFO L85 PathProgramCache]: Analyzing trace with hash 934868167, now seen corresponding path program 1 times [2022-07-12 12:31:23,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:31:23,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1982640297] [2022-07-12 12:31:23,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:31:23,951 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:31:23,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:31:23,953 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:31:23,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 12:31:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:31:24,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 1046 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 12:31:24,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:31:24,901 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-12 12:31:24,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:31:24,903 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:31:24,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1982640297] [2022-07-12 12:31:24,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1982640297] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:31:24,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:31:24,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:31:24,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89828727] [2022-07-12 12:31:24,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:31:24,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:31:24,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:31:24,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:31:24,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:31:24,946 INFO L87 Difference]: Start difference. First operand has 1610 states, 1116 states have (on average 1.3387096774193548) internal successors, (1494), 1143 states have internal predecessors, (1494), 415 states have call successors, (415), 78 states have call predecessors, (415), 77 states have return successors, (408), 405 states have call predecessors, (408), 408 states have call successors, (408) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-12 12:31:25,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:31:25,178 INFO L93 Difference]: Finished difference Result 3216 states and 4662 transitions. [2022-07-12 12:31:25,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:31:25,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 80 [2022-07-12 12:31:25,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:31:25,208 INFO L225 Difference]: With dead ends: 3216 [2022-07-12 12:31:25,208 INFO L226 Difference]: Without dead ends: 1571 [2022-07-12 12:31:25,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:31:25,231 INFO L413 NwaCegarLoop]: 2310 mSDtfsCounter, 0 mSDsluCounter, 2308 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4618 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:31:25,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4618 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 12:31:25,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1571 states. [2022-07-12 12:31:25,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1571 to 1571. [2022-07-12 12:31:25,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1086 states have (on average 1.3130755064456723) internal successors, (1426), 1104 states have internal predecessors, (1426), 408 states have call successors, (408), 77 states have call predecessors, (408), 76 states have return successors, (407), 404 states have call predecessors, (407), 407 states have call successors, (407) [2022-07-12 12:31:25,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 2241 transitions. [2022-07-12 12:31:25,406 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 2241 transitions. Word has length 80 [2022-07-12 12:31:25,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:31:25,408 INFO L495 AbstractCegarLoop]: Abstraction has 1571 states and 2241 transitions. [2022-07-12 12:31:25,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-12 12:31:25,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 2241 transitions. [2022-07-12 12:31:25,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-12 12:31:25,418 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:31:25,418 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:31:25,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 12:31:25,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:31:25,636 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:31:25,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:31:25,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1121554641, now seen corresponding path program 1 times [2022-07-12 12:31:25,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:31:25,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1336704289] [2022-07-12 12:31:25,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:31:25,639 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:31:25,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:31:25,641 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:31:25,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 12:31:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:31:26,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 12:31:26,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:31:26,608 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-12 12:31:26,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 12:31:26,791 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-12 12:31:26,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:31:26,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1336704289] [2022-07-12 12:31:26,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1336704289] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 12:31:26,792 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 12:31:26,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-12 12:31:26,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292754422] [2022-07-12 12:31:26,793 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 12:31:26,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 12:31:26,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:31:26,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 12:31:26,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:31:26,795 INFO L87 Difference]: Start difference. First operand 1571 states and 2241 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-12 12:31:27,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:31:27,079 INFO L93 Difference]: Finished difference Result 3119 states and 4451 transitions. [2022-07-12 12:31:27,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 12:31:27,080 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 81 [2022-07-12 12:31:27,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:31:27,093 INFO L225 Difference]: With dead ends: 3119 [2022-07-12 12:31:27,093 INFO L226 Difference]: Without dead ends: 1574 [2022-07-12 12:31:27,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:31:27,103 INFO L413 NwaCegarLoop]: 2239 mSDtfsCounter, 0 mSDsluCounter, 6711 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8950 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:31:27,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8950 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 12:31:27,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2022-07-12 12:31:27,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1574. [2022-07-12 12:31:27,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1089 states have (on average 1.3122130394857667) internal successors, (1429), 1107 states have internal predecessors, (1429), 408 states have call successors, (408), 77 states have call predecessors, (408), 76 states have return successors, (407), 404 states have call predecessors, (407), 407 states have call successors, (407) [2022-07-12 12:31:27,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 2244 transitions. [2022-07-12 12:31:27,176 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 2244 transitions. Word has length 81 [2022-07-12 12:31:27,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:31:27,179 INFO L495 AbstractCegarLoop]: Abstraction has 1574 states and 2244 transitions. [2022-07-12 12:31:27,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-12 12:31:27,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 2244 transitions. [2022-07-12 12:31:27,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-12 12:31:27,181 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:31:27,181 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:31:27,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 12:31:27,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:31:27,396 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:31:27,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:31:27,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1225041735, now seen corresponding path program 2 times [2022-07-12 12:31:27,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:31:27,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2096840764] [2022-07-12 12:31:27,398 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 12:31:27,398 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:31:27,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:31:27,399 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:31:27,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 12:31:28,036 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 12:31:28,036 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 12:31:28,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:31:28,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:31:28,131 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-07-12 12:31:28,131 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:31:28,131 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:31:28,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2096840764] [2022-07-12 12:31:28,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2096840764] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:31:28,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:31:28,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:31:28,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046190339] [2022-07-12 12:31:28,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:31:28,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:31:28,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:31:28,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:31:28,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:31:28,134 INFO L87 Difference]: Start difference. First operand 1574 states and 2244 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-12 12:31:28,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:31:28,406 INFO L93 Difference]: Finished difference Result 4638 states and 6620 transitions. [2022-07-12 12:31:28,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:31:28,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 84 [2022-07-12 12:31:28,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:31:28,425 INFO L225 Difference]: With dead ends: 4638 [2022-07-12 12:31:28,425 INFO L226 Difference]: Without dead ends: 3094 [2022-07-12 12:31:28,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:31:28,436 INFO L413 NwaCegarLoop]: 2648 mSDtfsCounter, 2171 mSDsluCounter, 2221 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2171 SdHoareTripleChecker+Valid, 4869 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 12:31:28,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2171 Valid, 4869 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 12:31:28,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3094 states. [2022-07-12 12:31:28,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3094 to 3094. [2022-07-12 12:31:28,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3094 states, 2140 states have (on average 1.3144859813084113) internal successors, (2813), 2176 states have internal predecessors, (2813), 801 states have call successors, (801), 153 states have call predecessors, (801), 152 states have return successors, (800), 794 states have call predecessors, (800), 800 states have call successors, (800) [2022-07-12 12:31:28,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3094 states to 3094 states and 4414 transitions. [2022-07-12 12:31:28,590 INFO L78 Accepts]: Start accepts. Automaton has 3094 states and 4414 transitions. Word has length 84 [2022-07-12 12:31:28,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:31:28,591 INFO L495 AbstractCegarLoop]: Abstraction has 3094 states and 4414 transitions. [2022-07-12 12:31:28,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-12 12:31:28,591 INFO L276 IsEmpty]: Start isEmpty. Operand 3094 states and 4414 transitions. [2022-07-12 12:31:28,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-12 12:31:28,593 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:31:28,593 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:31:28,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 12:31:28,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:31:28,816 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:31:28,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:31:28,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1801508975, now seen corresponding path program 1 times [2022-07-12 12:31:28,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:31:28,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1472223999] [2022-07-12 12:31:28,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:31:28,817 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:31:28,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:31:28,819 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:31:28,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 12:31:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:31:29,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 12:31:29,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:31:29,847 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-07-12 12:31:29,847 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:31:29,847 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:31:29,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1472223999] [2022-07-12 12:31:29,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1472223999] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:31:29,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:31:29,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:31:29,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903273181] [2022-07-12 12:31:29,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:31:29,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:31:29,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:31:29,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:31:29,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:31:29,849 INFO L87 Difference]: Start difference. First operand 3094 states and 4414 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-12 12:31:30,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:31:30,267 INFO L93 Difference]: Finished difference Result 9219 states and 13174 transitions. [2022-07-12 12:31:30,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:31:30,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 89 [2022-07-12 12:31:30,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:31:30,306 INFO L225 Difference]: With dead ends: 9219 [2022-07-12 12:31:30,307 INFO L226 Difference]: Without dead ends: 6150 [2022-07-12 12:31:30,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:31:30,325 INFO L413 NwaCegarLoop]: 2683 mSDtfsCounter, 2215 mSDsluCounter, 7567 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2215 SdHoareTripleChecker+Valid, 10250 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 12:31:30,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2215 Valid, 10250 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 12:31:30,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6150 states. [2022-07-12 12:31:30,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6150 to 6150. [2022-07-12 12:31:30,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6150 states, 4254 states have (on average 1.314997649271274) internal successors, (5594), 4326 states have internal predecessors, (5594), 1591 states have call successors, (1591), 305 states have call predecessors, (1591), 304 states have return successors, (1598), 1578 states have call predecessors, (1598), 1590 states have call successors, (1598) [2022-07-12 12:31:30,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6150 states to 6150 states and 8783 transitions. [2022-07-12 12:31:30,588 INFO L78 Accepts]: Start accepts. Automaton has 6150 states and 8783 transitions. Word has length 89 [2022-07-12 12:31:30,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:31:30,588 INFO L495 AbstractCegarLoop]: Abstraction has 6150 states and 8783 transitions. [2022-07-12 12:31:30,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-12 12:31:30,589 INFO L276 IsEmpty]: Start isEmpty. Operand 6150 states and 8783 transitions. [2022-07-12 12:31:30,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2022-07-12 12:31:30,618 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:31:30,619 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 11, 11, 11, 10, 10, 10, 7, 7, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:31:30,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 12:31:30,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:31:30,844 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:31:30,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:31:30,844 INFO L85 PathProgramCache]: Analyzing trace with hash -420332833, now seen corresponding path program 1 times [2022-07-12 12:31:30,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:31:30,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [141648259] [2022-07-12 12:31:30,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:31:30,846 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:31:30,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:31:30,847 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:31:30,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 12:31:32,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:31:32,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 2428 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:31:32,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:31:32,597 INFO L134 CoverageAnalysis]: Checked inductivity of 964 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 920 trivial. 0 not checked. [2022-07-12 12:31:32,598 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:31:32,598 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:31:32,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [141648259] [2022-07-12 12:31:32,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [141648259] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:31:32,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:31:32,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:31:32,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880320664] [2022-07-12 12:31:32,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:31:32,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:31:32,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:31:32,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:31:32,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:31:32,601 INFO L87 Difference]: Start difference. First operand 6150 states and 8783 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 2 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2022-07-12 12:31:33,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:31:33,235 INFO L93 Difference]: Finished difference Result 17146 states and 24421 transitions. [2022-07-12 12:31:33,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:31:33,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 2 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 471 [2022-07-12 12:31:33,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:31:33,319 INFO L225 Difference]: With dead ends: 17146 [2022-07-12 12:31:33,319 INFO L226 Difference]: Without dead ends: 11026 [2022-07-12 12:31:33,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 469 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:31:33,356 INFO L413 NwaCegarLoop]: 2576 mSDtfsCounter, 1800 mSDsluCounter, 2096 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1800 SdHoareTripleChecker+Valid, 4672 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 12:31:33,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1800 Valid, 4672 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 12:31:33,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11026 states. [2022-07-12 12:31:33,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11026 to 10966. [2022-07-12 12:31:33,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10966 states, 7590 states have (on average 1.3155467720685112) internal successors, (9985), 7750 states have internal predecessors, (9985), 2799 states have call successors, (2799), 577 states have call predecessors, (2799), 576 states have return successors, (2820), 2754 states have call predecessors, (2820), 2798 states have call successors, (2820) [2022-07-12 12:31:33,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10966 states to 10966 states and 15604 transitions. [2022-07-12 12:31:33,899 INFO L78 Accepts]: Start accepts. Automaton has 10966 states and 15604 transitions. Word has length 471 [2022-07-12 12:31:33,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:31:33,899 INFO L495 AbstractCegarLoop]: Abstraction has 10966 states and 15604 transitions. [2022-07-12 12:31:33,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 2 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2022-07-12 12:31:33,900 INFO L276 IsEmpty]: Start isEmpty. Operand 10966 states and 15604 transitions. [2022-07-12 12:31:33,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2022-07-12 12:31:33,930 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:31:33,930 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 11, 11, 11, 10, 10, 10, 7, 7, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:31:34,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 12:31:34,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:31:34,144 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:31:34,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:31:34,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1063400336, now seen corresponding path program 1 times [2022-07-12 12:31:34,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:31:34,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [452480481] [2022-07-12 12:31:34,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:31:34,147 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:31:34,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:31:34,148 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:31:34,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 12:31:35,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:31:35,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 2556 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:31:35,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:31:35,912 INFO L134 CoverageAnalysis]: Checked inductivity of 970 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 926 trivial. 0 not checked. [2022-07-12 12:31:35,912 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:31:35,912 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:31:35,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [452480481] [2022-07-12 12:31:35,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [452480481] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:31:35,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:31:35,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:31:35,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626907168] [2022-07-12 12:31:35,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:31:35,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:31:35,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:31:35,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:31:35,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:31:35,915 INFO L87 Difference]: Start difference. First operand 10966 states and 15604 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 2 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2022-07-12 12:31:36,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:31:36,536 INFO L93 Difference]: Finished difference Result 28123 states and 40036 transitions. [2022-07-12 12:31:36,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:31:36,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 2 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) Word has length 517 [2022-07-12 12:31:36,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:31:36,660 INFO L225 Difference]: With dead ends: 28123 [2022-07-12 12:31:36,660 INFO L226 Difference]: Without dead ends: 17187 [2022-07-12 12:31:36,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 515 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:31:36,711 INFO L413 NwaCegarLoop]: 3475 mSDtfsCounter, 1766 mSDsluCounter, 2185 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1766 SdHoareTripleChecker+Valid, 5660 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 12:31:36,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1766 Valid, 5660 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 12:31:36,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17187 states. [2022-07-12 12:31:37,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17187 to 17179. [2022-07-12 12:31:37,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17179 states, 11943 states have (on average 1.3216947165703758) internal successors, (15785), 12159 states have internal predecessors, (15785), 4323 states have call successors, (4323), 913 states have call predecessors, (4323), 912 states have return successors, (4350), 4266 states have call predecessors, (4350), 4322 states have call successors, (4350) [2022-07-12 12:31:37,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17179 states to 17179 states and 24458 transitions. [2022-07-12 12:31:37,589 INFO L78 Accepts]: Start accepts. Automaton has 17179 states and 24458 transitions. Word has length 517 [2022-07-12 12:31:37,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:31:37,590 INFO L495 AbstractCegarLoop]: Abstraction has 17179 states and 24458 transitions. [2022-07-12 12:31:37,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 2 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2022-07-12 12:31:37,590 INFO L276 IsEmpty]: Start isEmpty. Operand 17179 states and 24458 transitions. [2022-07-12 12:31:37,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2022-07-12 12:31:37,635 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:31:37,636 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 10, 10, 10, 7, 7, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:31:37,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 12:31:37,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:31:37,852 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:31:37,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:31:37,852 INFO L85 PathProgramCache]: Analyzing trace with hash 775553112, now seen corresponding path program 1 times [2022-07-12 12:31:37,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:31:37,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [347777687] [2022-07-12 12:31:37,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:31:37,854 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:31:37,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:31:37,855 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:31:37,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 12:31:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:31:39,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 2654 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:31:39,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:31:39,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1180 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 950 trivial. 0 not checked. [2022-07-12 12:31:39,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:31:39,764 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:31:39,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [347777687] [2022-07-12 12:31:39,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [347777687] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:31:39,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:31:39,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:31:39,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598760840] [2022-07-12 12:31:39,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:31:39,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:31:39,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:31:39,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:31:39,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:31:39,767 INFO L87 Difference]: Start difference. First operand 17179 states and 24458 transitions. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 3 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (80), 3 states have call predecessors, (80), 3 states have call successors, (80) [2022-07-12 12:31:40,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:31:40,536 INFO L93 Difference]: Finished difference Result 41041 states and 58352 transitions. [2022-07-12 12:31:40,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:31:40,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 3 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (80), 3 states have call predecessors, (80), 3 states have call successors, (80) Word has length 552 [2022-07-12 12:31:40,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:31:40,743 INFO L225 Difference]: With dead ends: 41041 [2022-07-12 12:31:40,743 INFO L226 Difference]: Without dead ends: 23913 [2022-07-12 12:31:40,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 551 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:31:40,792 INFO L413 NwaCegarLoop]: 3939 mSDtfsCounter, 2007 mSDsluCounter, 1977 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2007 SdHoareTripleChecker+Valid, 5916 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 12:31:40,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2007 Valid, 5916 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 12:31:40,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23913 states. [2022-07-12 12:31:41,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23913 to 23849. [2022-07-12 12:31:41,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23849 states, 16633 states have (on average 1.3228521613659592) internal successors, (22003), 16901 states have internal predecessors, (22003), 5905 states have call successors, (5905), 1311 states have call predecessors, (5905), 1310 states have return successors, (5938), 5836 states have call predecessors, (5938), 5904 states have call successors, (5938) [2022-07-12 12:31:41,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23849 states to 23849 states and 33846 transitions. [2022-07-12 12:31:41,815 INFO L78 Accepts]: Start accepts. Automaton has 23849 states and 33846 transitions. Word has length 552 [2022-07-12 12:31:41,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:31:41,815 INFO L495 AbstractCegarLoop]: Abstraction has 23849 states and 33846 transitions. [2022-07-12 12:31:41,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 3 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (80), 3 states have call predecessors, (80), 3 states have call successors, (80) [2022-07-12 12:31:41,816 INFO L276 IsEmpty]: Start isEmpty. Operand 23849 states and 33846 transitions. [2022-07-12 12:31:41,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2022-07-12 12:31:41,873 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:31:41,874 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 10, 10, 10, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:31:41,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-12 12:31:42,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:31:42,088 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:31:42,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:31:42,088 INFO L85 PathProgramCache]: Analyzing trace with hash 272930517, now seen corresponding path program 1 times [2022-07-12 12:31:42,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:31:42,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399764922] [2022-07-12 12:31:42,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:31:42,090 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:31:42,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:31:42,091 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:31:42,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 12:31:43,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:31:43,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 2732 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 12:31:43,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:31:43,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 1118 trivial. 0 not checked. [2022-07-12 12:31:43,903 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:31:43,903 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:31:43,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [399764922] [2022-07-12 12:31:43,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [399764922] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:31:43,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:31:43,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:31:43,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887283883] [2022-07-12 12:31:43,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:31:43,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:31:43,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:31:43,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:31:43,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:31:43,907 INFO L87 Difference]: Start difference. First operand 23849 states and 33846 transitions. Second operand has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 2 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2022-07-12 12:31:45,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:31:45,426 INFO L93 Difference]: Finished difference Result 55601 states and 78910 transitions. [2022-07-12 12:31:45,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:31:45,427 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 2 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) Word has length 575 [2022-07-12 12:31:45,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:31:45,564 INFO L225 Difference]: With dead ends: 55601 [2022-07-12 12:31:45,564 INFO L226 Difference]: Without dead ends: 31803 [2022-07-12 12:31:45,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 573 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:31:45,638 INFO L413 NwaCegarLoop]: 4170 mSDtfsCounter, 2351 mSDsluCounter, 5984 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2351 SdHoareTripleChecker+Valid, 10154 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 12:31:45,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2351 Valid, 10154 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 12:31:45,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31803 states. [2022-07-12 12:31:46,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31803 to 23857. [2022-07-12 12:31:46,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23857 states, 16641 states have (on average 1.3224565831380326) internal successors, (22007), 16909 states have internal predecessors, (22007), 5905 states have call successors, (5905), 1311 states have call predecessors, (5905), 1310 states have return successors, (5938), 5836 states have call predecessors, (5938), 5904 states have call successors, (5938) [2022-07-12 12:31:46,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23857 states to 23857 states and 33850 transitions. [2022-07-12 12:31:47,005 INFO L78 Accepts]: Start accepts. Automaton has 23857 states and 33850 transitions. Word has length 575 [2022-07-12 12:31:47,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:31:47,012 INFO L495 AbstractCegarLoop]: Abstraction has 23857 states and 33850 transitions. [2022-07-12 12:31:47,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 2 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2022-07-12 12:31:47,013 INFO L276 IsEmpty]: Start isEmpty. Operand 23857 states and 33850 transitions. [2022-07-12 12:31:47,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2022-07-12 12:31:47,137 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:31:47,137 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 16, 16, 16, 14, 14, 14, 10, 10, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:31:47,269 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-07-12 12:31:47,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:31:47,356 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:31:47,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:31:47,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1315275553, now seen corresponding path program 1 times [2022-07-12 12:31:47,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:31:47,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [819416453] [2022-07-12 12:31:47,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:31:47,361 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:31:47,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:31:47,375 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:31:47,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 12:31:49,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:31:49,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 3325 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 12:31:49,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:31:49,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1777 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 1615 trivial. 0 not checked. [2022-07-12 12:31:49,935 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:31:49,935 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:31:49,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [819416453] [2022-07-12 12:31:49,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [819416453] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:31:49,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:31:49,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 12:31:49,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075956538] [2022-07-12 12:31:49,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:31:49,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 12:31:49,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:31:49,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 12:31:49,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:31:49,938 INFO L87 Difference]: Start difference. First operand 23857 states and 33850 transitions. Second operand has 6 states, 6 states have (on average 48.5) internal successors, (291), 5 states have internal predecessors, (291), 2 states have call successors, (93), 2 states have call predecessors, (93), 3 states have return successors, (92), 3 states have call predecessors, (92), 2 states have call successors, (92) [2022-07-12 12:31:52,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:31:53,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:31:53,400 INFO L93 Difference]: Finished difference Result 52515 states and 75221 transitions. [2022-07-12 12:31:53,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 12:31:53,401 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 48.5) internal successors, (291), 5 states have internal predecessors, (291), 2 states have call successors, (93), 2 states have call predecessors, (93), 3 states have return successors, (92), 3 states have call predecessors, (92), 2 states have call successors, (92) Word has length 709 [2022-07-12 12:31:53,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:31:53,508 INFO L225 Difference]: With dead ends: 52515 [2022-07-12 12:31:53,509 INFO L226 Difference]: Without dead ends: 28709 [2022-07-12 12:31:53,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 710 GetRequests, 705 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:31:53,572 INFO L413 NwaCegarLoop]: 2981 mSDtfsCounter, 1263 mSDsluCounter, 11166 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 208 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1369 SdHoareTripleChecker+Valid, 14147 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-12 12:31:53,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1369 Valid, 14147 Invalid, 242 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [208 Valid, 33 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-07-12 12:31:53,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28709 states. [2022-07-12 12:31:54,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28709 to 23897. [2022-07-12 12:31:54,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23897 states, 16673 states have (on average 1.3218377016733642) internal successors, (22039), 16941 states have internal predecessors, (22039), 5905 states have call successors, (5905), 1311 states have call predecessors, (5905), 1318 states have return successors, (5966), 5844 states have call predecessors, (5966), 5904 states have call successors, (5966) [2022-07-12 12:31:54,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23897 states to 23897 states and 33910 transitions. [2022-07-12 12:31:54,792 INFO L78 Accepts]: Start accepts. Automaton has 23897 states and 33910 transitions. Word has length 709 [2022-07-12 12:31:54,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:31:54,793 INFO L495 AbstractCegarLoop]: Abstraction has 23897 states and 33910 transitions. [2022-07-12 12:31:54,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.5) internal successors, (291), 5 states have internal predecessors, (291), 2 states have call successors, (93), 2 states have call predecessors, (93), 3 states have return successors, (92), 3 states have call predecessors, (92), 2 states have call successors, (92) [2022-07-12 12:31:54,794 INFO L276 IsEmpty]: Start isEmpty. Operand 23897 states and 33910 transitions. [2022-07-12 12:31:54,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 730 [2022-07-12 12:31:54,853 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:31:54,854 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 16, 16, 16, 14, 14, 14, 10, 10, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:31:54,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-12 12:31:55,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:31:55,077 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:31:55,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:31:55,077 INFO L85 PathProgramCache]: Analyzing trace with hash -2113028057, now seen corresponding path program 1 times [2022-07-12 12:31:55,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:31:55,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [316345926] [2022-07-12 12:31:55,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:31:55,080 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:31:55,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:31:55,088 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:31:55,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 12:31:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:31:57,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 3370 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-12 12:31:57,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:31:57,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1781 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 1621 trivial. 0 not checked. [2022-07-12 12:31:57,674 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:31:57,674 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:31:57,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [316345926] [2022-07-12 12:31:57,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [316345926] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:31:57,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:31:57,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 12:31:57,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987477354] [2022-07-12 12:31:57,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:31:57,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 12:31:57,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:31:57,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 12:31:57,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:31:57,677 INFO L87 Difference]: Start difference. First operand 23897 states and 33910 transitions. Second operand has 7 states, 7 states have (on average 42.714285714285715) internal successors, (299), 6 states have internal predecessors, (299), 2 states have call successors, (97), 2 states have call predecessors, (97), 3 states have return successors, (96), 3 states have call predecessors, (96), 2 states have call successors, (96) [2022-07-12 12:31:59,983 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:32:00,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:32:00,989 INFO L93 Difference]: Finished difference Result 49559 states and 70551 transitions. [2022-07-12 12:32:00,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 12:32:00,990 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.714285714285715) internal successors, (299), 6 states have internal predecessors, (299), 2 states have call successors, (97), 2 states have call predecessors, (97), 3 states have return successors, (96), 3 states have call predecessors, (96), 2 states have call successors, (96) Word has length 729 [2022-07-12 12:32:00,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:32:01,109 INFO L225 Difference]: With dead ends: 49559 [2022-07-12 12:32:01,109 INFO L226 Difference]: Without dead ends: 25713 [2022-07-12 12:32:01,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 732 GetRequests, 725 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-12 12:32:01,413 INFO L413 NwaCegarLoop]: 2651 mSDtfsCounter, 1289 mSDsluCounter, 12466 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 235 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1289 SdHoareTripleChecker+Valid, 15117 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-12 12:32:01,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1289 Valid, 15117 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 38 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-07-12 12:32:01,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25713 states. [2022-07-12 12:32:02,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25713 to 23913. [2022-07-12 12:32:02,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23913 states, 16689 states have (on average 1.3215291509377434) internal successors, (22055), 16953 states have internal predecessors, (22055), 5905 states have call successors, (5905), 1311 states have call predecessors, (5905), 1318 states have return successors, (5966), 5848 states have call predecessors, (5966), 5904 states have call successors, (5966) [2022-07-12 12:32:02,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23913 states to 23913 states and 33926 transitions. [2022-07-12 12:32:02,329 INFO L78 Accepts]: Start accepts. Automaton has 23913 states and 33926 transitions. Word has length 729 [2022-07-12 12:32:02,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:32:02,330 INFO L495 AbstractCegarLoop]: Abstraction has 23913 states and 33926 transitions. [2022-07-12 12:32:02,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.714285714285715) internal successors, (299), 6 states have internal predecessors, (299), 2 states have call successors, (97), 2 states have call predecessors, (97), 3 states have return successors, (96), 3 states have call predecessors, (96), 2 states have call successors, (96) [2022-07-12 12:32:02,331 INFO L276 IsEmpty]: Start isEmpty. Operand 23913 states and 33926 transitions. [2022-07-12 12:32:02,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 750 [2022-07-12 12:32:02,383 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:32:02,384 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 16, 16, 16, 14, 14, 14, 10, 10, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:32:02,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-12 12:32:02,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:32:02,604 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:32:02,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:32:02,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1145833885, now seen corresponding path program 1 times [2022-07-12 12:32:02,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:32:02,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006085220] [2022-07-12 12:32:02,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:32:02,607 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:32:02,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:32:02,608 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:32:02,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 12:32:04,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:32:04,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 3413 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-12 12:32:04,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:32:05,733 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 320 proven. 6 refuted. 0 times theorem prover too weak. 1487 trivial. 0 not checked. [2022-07-12 12:32:05,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 12:32:06,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 43 proven. 10 refuted. 0 times theorem prover too weak. 1760 trivial. 0 not checked. [2022-07-12 12:32:06,908 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:32:06,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006085220] [2022-07-12 12:32:06,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006085220] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 12:32:06,909 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 12:32:06,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-07-12 12:32:06,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117276078] [2022-07-12 12:32:06,909 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 12:32:06,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 12:32:06,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:32:06,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 12:32:06,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-07-12 12:32:06,912 INFO L87 Difference]: Start difference. First operand 23913 states and 33926 transitions. Second operand has 12 states, 12 states have (on average 40.166666666666664) internal successors, (482), 10 states have internal predecessors, (482), 6 states have call successors, (178), 3 states have call predecessors, (178), 5 states have return successors, (178), 8 states have call predecessors, (178), 6 states have call successors, (178) [2022-07-12 12:32:11,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:32:22,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:32:22,138 INFO L93 Difference]: Finished difference Result 67242 states and 96968 transitions. [2022-07-12 12:32:22,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-12 12:32:22,139 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 40.166666666666664) internal successors, (482), 10 states have internal predecessors, (482), 6 states have call successors, (178), 3 states have call predecessors, (178), 5 states have return successors, (178), 8 states have call predecessors, (178), 6 states have call successors, (178) Word has length 749 [2022-07-12 12:32:22,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:32:22,270 INFO L225 Difference]: With dead ends: 67242 [2022-07-12 12:32:22,270 INFO L226 Difference]: Without dead ends: 43380 [2022-07-12 12:32:22,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1522 GetRequests, 1493 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=215, Invalid=715, Unknown=0, NotChecked=0, Total=930 [2022-07-12 12:32:22,325 INFO L413 NwaCegarLoop]: 4680 mSDtfsCounter, 5678 mSDsluCounter, 32166 mSDsCounter, 0 mSdLazyCounter, 1947 mSolverCounterSat, 1797 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5909 SdHoareTripleChecker+Valid, 36846 SdHoareTripleChecker+Invalid, 3745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1797 IncrementalHoareTripleChecker+Valid, 1947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-07-12 12:32:22,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5909 Valid, 36846 Invalid, 3745 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1797 Valid, 1947 Invalid, 1 Unknown, 0 Unchecked, 12.3s Time] [2022-07-12 12:32:22,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43380 states. [2022-07-12 12:32:23,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43380 to 31362. [2022-07-12 12:32:23,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31362 states, 22004 states have (on average 1.3220323577531359) internal successors, (29090), 22346 states have internal predecessors, (29090), 7613 states have call successors, (7613), 1721 states have call predecessors, (7613), 1744 states have return successors, (7746), 7556 states have call predecessors, (7746), 7612 states have call successors, (7746) [2022-07-12 12:32:23,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31362 states to 31362 states and 44449 transitions. [2022-07-12 12:32:23,705 INFO L78 Accepts]: Start accepts. Automaton has 31362 states and 44449 transitions. Word has length 749 [2022-07-12 12:32:23,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:32:23,706 INFO L495 AbstractCegarLoop]: Abstraction has 31362 states and 44449 transitions. [2022-07-12 12:32:23,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 40.166666666666664) internal successors, (482), 10 states have internal predecessors, (482), 6 states have call successors, (178), 3 states have call predecessors, (178), 5 states have return successors, (178), 8 states have call predecessors, (178), 6 states have call successors, (178) [2022-07-12 12:32:23,706 INFO L276 IsEmpty]: Start isEmpty. Operand 31362 states and 44449 transitions. [2022-07-12 12:32:23,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 750 [2022-07-12 12:32:23,785 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:32:23,785 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 16, 16, 16, 14, 14, 14, 10, 10, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:32:23,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-07-12 12:32:23,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:32:23,997 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:32:23,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:32:23,998 INFO L85 PathProgramCache]: Analyzing trace with hash -235595233, now seen corresponding path program 1 times [2022-07-12 12:32:23,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:32:24,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [211493922] [2022-07-12 12:32:24,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:32:24,000 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:32:24,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:32:24,001 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:32:24,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-12 12:32:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:32:26,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 3413 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 12:32:26,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:32:26,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 1622 trivial. 0 not checked. [2022-07-12 12:32:26,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:32:26,347 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:32:26,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [211493922] [2022-07-12 12:32:26,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [211493922] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:32:26,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:32:26,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:32:26,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609257654] [2022-07-12 12:32:26,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:32:26,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:32:26,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:32:26,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:32:26,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:32:26,350 INFO L87 Difference]: Start difference. First operand 31362 states and 44449 transitions. Second operand has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 3 states have call successors, (97), 2 states have call predecessors, (97), 2 states have return successors, (96), 3 states have call predecessors, (96), 3 states have call successors, (96) [2022-07-12 12:32:27,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:32:27,415 INFO L93 Difference]: Finished difference Result 62502 states and 88596 transitions. [2022-07-12 12:32:27,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 12:32:27,416 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 3 states have call successors, (97), 2 states have call predecessors, (97), 2 states have return successors, (96), 3 states have call predecessors, (96), 3 states have call successors, (96) Word has length 749 [2022-07-12 12:32:27,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:32:27,652 INFO L225 Difference]: With dead ends: 62502 [2022-07-12 12:32:27,653 INFO L226 Difference]: Without dead ends: 31538 [2022-07-12 12:32:27,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 749 GetRequests, 746 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:32:27,704 INFO L413 NwaCegarLoop]: 2239 mSDtfsCounter, 26 mSDsluCounter, 4466 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 6705 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:32:27,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 6705 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 12:32:27,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31538 states. [2022-07-12 12:32:28,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31538 to 31394. [2022-07-12 12:32:28,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31394 states, 22028 states have (on average 1.3213183221354639) internal successors, (29106), 22370 states have internal predecessors, (29106), 7621 states have call successors, (7621), 1721 states have call predecessors, (7621), 1744 states have return successors, (7754), 7564 states have call predecessors, (7754), 7620 states have call successors, (7754) [2022-07-12 12:32:28,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31394 states to 31394 states and 44481 transitions. [2022-07-12 12:32:28,757 INFO L78 Accepts]: Start accepts. Automaton has 31394 states and 44481 transitions. Word has length 749 [2022-07-12 12:32:28,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:32:28,758 INFO L495 AbstractCegarLoop]: Abstraction has 31394 states and 44481 transitions. [2022-07-12 12:32:28,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 3 states have call successors, (97), 2 states have call predecessors, (97), 2 states have return successors, (96), 3 states have call predecessors, (96), 3 states have call successors, (96) [2022-07-12 12:32:28,758 INFO L276 IsEmpty]: Start isEmpty. Operand 31394 states and 44481 transitions. [2022-07-12 12:32:28,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 750 [2022-07-12 12:32:28,805 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:32:28,806 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 16, 16, 16, 14, 14, 14, 10, 10, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:32:28,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-12 12:32:29,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:32:29,007 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:32:29,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:32:29,007 INFO L85 PathProgramCache]: Analyzing trace with hash -2052465123, now seen corresponding path program 1 times [2022-07-12 12:32:29,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:32:29,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064614562] [2022-07-12 12:32:29,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:32:29,010 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:32:29,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:32:29,011 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:32:29,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-12 12:32:31,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:32:31,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 3415 conjuncts, 25 conjunts are in the unsatisfiable core [2022-07-12 12:32:31,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:32:31,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 341 proven. 6 refuted. 0 times theorem prover too weak. 1466 trivial. 0 not checked. [2022-07-12 12:32:31,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 12:32:32,435 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 1794 trivial. 0 not checked. [2022-07-12 12:32:32,435 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:32:32,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064614562] [2022-07-12 12:32:32,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2064614562] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 12:32:32,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 12:32:32,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-07-12 12:32:32,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117343870] [2022-07-12 12:32:32,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:32:32,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:32:32,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:32:32,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:32:32,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 12:32:32,438 INFO L87 Difference]: Start difference. First operand 31394 states and 44481 transitions. Second operand has 5 states, 5 states have (on average 58.4) internal successors, (292), 5 states have internal predecessors, (292), 2 states have call successors, (97), 2 states have call predecessors, (97), 1 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2022-07-12 12:32:34,361 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:32:35,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:32:35,482 INFO L93 Difference]: Finished difference Result 64400 states and 91492 transitions. [2022-07-12 12:32:35,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:32:35,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 58.4) internal successors, (292), 5 states have internal predecessors, (292), 2 states have call successors, (97), 2 states have call predecessors, (97), 1 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) Word has length 749 [2022-07-12 12:32:35,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:32:35,589 INFO L225 Difference]: With dead ends: 64400 [2022-07-12 12:32:35,590 INFO L226 Difference]: Without dead ends: 33404 [2022-07-12 12:32:35,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1499 GetRequests, 1487 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-07-12 12:32:35,651 INFO L413 NwaCegarLoop]: 2621 mSDtfsCounter, 558 mSDsluCounter, 7197 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 9818 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-12 12:32:35,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 9818 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-12 12:32:35,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33404 states. [2022-07-12 12:32:36,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33404 to 31418. [2022-07-12 12:32:36,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31418 states, 22052 states have (on average 1.3209686196263377) internal successors, (29130), 22394 states have internal predecessors, (29130), 7621 states have call successors, (7621), 1721 states have call predecessors, (7621), 1744 states have return successors, (7754), 7564 states have call predecessors, (7754), 7620 states have call successors, (7754) [2022-07-12 12:32:36,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31418 states to 31418 states and 44505 transitions. [2022-07-12 12:32:36,764 INFO L78 Accepts]: Start accepts. Automaton has 31418 states and 44505 transitions. Word has length 749 [2022-07-12 12:32:36,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:32:36,765 INFO L495 AbstractCegarLoop]: Abstraction has 31418 states and 44505 transitions. [2022-07-12 12:32:36,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 58.4) internal successors, (292), 5 states have internal predecessors, (292), 2 states have call successors, (97), 2 states have call predecessors, (97), 1 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2022-07-12 12:32:36,766 INFO L276 IsEmpty]: Start isEmpty. Operand 31418 states and 44505 transitions. [2022-07-12 12:32:36,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2022-07-12 12:32:36,814 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:32:36,815 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 16, 16, 16, 14, 14, 14, 10, 10, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:32:36,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-12 12:32:37,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:32:37,028 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:32:37,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:32:37,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1273217471, now seen corresponding path program 1 times [2022-07-12 12:32:37,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:32:37,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [171908412] [2022-07-12 12:32:37,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:32:37,031 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:32:37,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:32:37,032 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:32:37,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-12 12:32:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:32:39,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 3475 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 12:32:39,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:32:40,065 INFO L356 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2022-07-12 12:32:40,066 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 21 [2022-07-12 12:32:40,487 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 1570 trivial. 0 not checked. [2022-07-12 12:32:40,488 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:32:40,488 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:32:40,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [171908412] [2022-07-12 12:32:40,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [171908412] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:32:40,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:32:40,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 12:32:40,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495844395] [2022-07-12 12:32:40,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:32:40,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 12:32:40,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:32:40,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 12:32:40,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:32:40,491 INFO L87 Difference]: Start difference. First operand 31418 states and 44505 transitions. Second operand has 6 states, 6 states have (on average 52.0) internal successors, (312), 6 states have internal predecessors, (312), 3 states have call successors, (97), 3 states have call predecessors, (97), 3 states have return successors, (96), 3 states have call predecessors, (96), 3 states have call successors, (96) [2022-07-12 12:32:43,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:32:45,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:32:48,802 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:32:57,680 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:32:59,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:33:01,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:33:10,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:33:12,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:33:16,178 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:33:18,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:33:21,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:33:23,115 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:33:25,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:33:28,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:33:30,243 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:33:32,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:33:34,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:33:38,658 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:33:40,672 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:33:42,756 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:33:44,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:33:45,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:33:45,217 INFO L93 Difference]: Finished difference Result 65816 states and 93198 transitions. [2022-07-12 12:33:45,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 12:33:45,219 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 52.0) internal successors, (312), 6 states have internal predecessors, (312), 3 states have call successors, (97), 3 states have call predecessors, (97), 3 states have return successors, (96), 3 states have call predecessors, (96), 3 states have call successors, (96) Word has length 759 [2022-07-12 12:33:45,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:33:45,308 INFO L225 Difference]: With dead ends: 65816 [2022-07-12 12:33:45,309 INFO L226 Difference]: Without dead ends: 34796 [2022-07-12 12:33:45,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 759 GetRequests, 753 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:33:45,361 INFO L413 NwaCegarLoop]: 2730 mSDtfsCounter, 623 mSDsluCounter, 9593 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 1 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 12323 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 468 IncrementalHoareTripleChecker+Unchecked, 63.3s IncrementalHoareTripleChecker+Time [2022-07-12 12:33:45,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 12323 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 495 Invalid, 20 Unknown, 468 Unchecked, 63.3s Time] [2022-07-12 12:33:45,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34796 states. [2022-07-12 12:33:46,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34796 to 34356. [2022-07-12 12:33:46,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34356 states, 24268 states have (on average 1.3235124443711883) internal successors, (32119), 24684 states have internal predecessors, (32119), 8135 states have call successors, (8135), 1921 states have call predecessors, (8135), 1952 states have return successors, (8326), 8028 states have call predecessors, (8326), 8134 states have call successors, (8326) [2022-07-12 12:33:46,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34356 states to 34356 states and 48580 transitions. [2022-07-12 12:33:46,763 INFO L78 Accepts]: Start accepts. Automaton has 34356 states and 48580 transitions. Word has length 759 [2022-07-12 12:33:46,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:33:46,763 INFO L495 AbstractCegarLoop]: Abstraction has 34356 states and 48580 transitions. [2022-07-12 12:33:46,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 52.0) internal successors, (312), 6 states have internal predecessors, (312), 3 states have call successors, (97), 3 states have call predecessors, (97), 3 states have return successors, (96), 3 states have call predecessors, (96), 3 states have call successors, (96) [2022-07-12 12:33:46,764 INFO L276 IsEmpty]: Start isEmpty. Operand 34356 states and 48580 transitions. [2022-07-12 12:33:46,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2022-07-12 12:33:46,811 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:33:46,811 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 16, 16, 16, 14, 14, 14, 10, 10, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:33:46,881 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-07-12 12:33:47,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:33:47,012 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:33:47,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:33:47,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1458326017, now seen corresponding path program 1 times [2022-07-12 12:33:47,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:33:47,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1456701134] [2022-07-12 12:33:47,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:33:47,014 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:33:47,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:33:47,016 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:33:47,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-12 12:33:49,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:33:49,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 3475 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 12:33:49,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:33:49,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 460 proven. 0 refuted. 0 times theorem prover too weak. 1353 trivial. 0 not checked. [2022-07-12 12:33:49,600 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:33:49,600 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:33:49,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1456701134] [2022-07-12 12:33:49,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1456701134] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:33:49,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:33:49,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 12:33:49,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477414295] [2022-07-12 12:33:49,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:33:49,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 12:33:49,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:33:49,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 12:33:49,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:33:49,603 INFO L87 Difference]: Start difference. First operand 34356 states and 48580 transitions. Second operand has 6 states, 6 states have (on average 54.666666666666664) internal successors, (328), 5 states have internal predecessors, (328), 2 states have call successors, (101), 2 states have call predecessors, (101), 3 states have return successors, (100), 3 states have call predecessors, (100), 2 states have call successors, (100) [2022-07-12 12:33:51,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:33:51,377 INFO L93 Difference]: Finished difference Result 81178 states and 116741 transitions. [2022-07-12 12:33:51,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 12:33:51,379 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 54.666666666666664) internal successors, (328), 5 states have internal predecessors, (328), 2 states have call successors, (101), 2 states have call predecessors, (101), 3 states have return successors, (100), 3 states have call predecessors, (100), 2 states have call successors, (100) Word has length 759 [2022-07-12 12:33:51,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:33:51,509 INFO L225 Difference]: With dead ends: 81178 [2022-07-12 12:33:51,509 INFO L226 Difference]: Without dead ends: 47220 [2022-07-12 12:33:51,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 759 GetRequests, 754 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:33:51,575 INFO L413 NwaCegarLoop]: 3148 mSDtfsCounter, 616 mSDsluCounter, 11804 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 14952 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:33:51,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 14952 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 12:33:51,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47220 states. [2022-07-12 12:33:53,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47220 to 34396. [2022-07-12 12:33:53,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34396 states, 24300 states have (on average 1.3230864197530865) internal successors, (32151), 24716 states have internal predecessors, (32151), 8135 states have call successors, (8135), 1921 states have call predecessors, (8135), 1960 states have return successors, (8346), 8036 states have call predecessors, (8346), 8134 states have call successors, (8346) [2022-07-12 12:33:53,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34396 states to 34396 states and 48632 transitions. [2022-07-12 12:33:53,184 INFO L78 Accepts]: Start accepts. Automaton has 34396 states and 48632 transitions. Word has length 759 [2022-07-12 12:33:53,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:33:53,185 INFO L495 AbstractCegarLoop]: Abstraction has 34396 states and 48632 transitions. [2022-07-12 12:33:53,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 54.666666666666664) internal successors, (328), 5 states have internal predecessors, (328), 2 states have call successors, (101), 2 states have call predecessors, (101), 3 states have return successors, (100), 3 states have call predecessors, (100), 2 states have call successors, (100) [2022-07-12 12:33:53,185 INFO L276 IsEmpty]: Start isEmpty. Operand 34396 states and 48632 transitions. [2022-07-12 12:33:53,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 763 [2022-07-12 12:33:53,235 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:33:53,236 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 16, 16, 16, 14, 14, 14, 10, 10, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:33:53,306 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-07-12 12:33:53,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:33:53,437 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:33:53,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:33:53,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1963541631, now seen corresponding path program 1 times [2022-07-12 12:33:53,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:33:53,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [189915566] [2022-07-12 12:33:53,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:33:53,440 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:33:53,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:33:53,441 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:33:53,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-12 12:33:55,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:33:55,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 3484 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:33:55,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:33:55,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 457 proven. 0 refuted. 0 times theorem prover too weak. 1356 trivial. 0 not checked. [2022-07-12 12:33:55,928 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:33:55,928 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:33:55,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [189915566] [2022-07-12 12:33:55,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [189915566] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:33:55,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:33:55,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:33:55,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659259789] [2022-07-12 12:33:55,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:33:55,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:33:55,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:33:55,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:33:55,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:33:55,931 INFO L87 Difference]: Start difference. First operand 34396 states and 48632 transitions. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 2 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (100), 2 states have call predecessors, (100), 2 states have call successors, (100) [2022-07-12 12:33:57,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:33:57,235 INFO L93 Difference]: Finished difference Result 68490 states and 96938 transitions. [2022-07-12 12:33:57,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:33:57,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 2 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (100), 2 states have call predecessors, (100), 2 states have call successors, (100) Word has length 762 [2022-07-12 12:33:57,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:33:57,368 INFO L225 Difference]: With dead ends: 68490 [2022-07-12 12:33:57,368 INFO L226 Difference]: Without dead ends: 34492 [2022-07-12 12:33:57,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 761 GetRequests, 760 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:33:57,449 INFO L413 NwaCegarLoop]: 2239 mSDtfsCounter, 3 mSDsluCounter, 2235 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4474 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:33:57,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4474 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 12:33:57,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34492 states. [2022-07-12 12:33:58,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34492 to 34420. [2022-07-12 12:33:58,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34420 states, 24324 states have (on average 1.3227676369018253) internal successors, (32175), 24740 states have internal predecessors, (32175), 8135 states have call successors, (8135), 1921 states have call predecessors, (8135), 1960 states have return successors, (8346), 8036 states have call predecessors, (8346), 8134 states have call successors, (8346) [2022-07-12 12:33:58,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34420 states to 34420 states and 48656 transitions. [2022-07-12 12:33:58,809 INFO L78 Accepts]: Start accepts. Automaton has 34420 states and 48656 transitions. Word has length 762 [2022-07-12 12:33:58,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:33:58,810 INFO L495 AbstractCegarLoop]: Abstraction has 34420 states and 48656 transitions. [2022-07-12 12:33:58,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 2 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (100), 2 states have call predecessors, (100), 2 states have call successors, (100) [2022-07-12 12:33:58,810 INFO L276 IsEmpty]: Start isEmpty. Operand 34420 states and 48656 transitions. [2022-07-12 12:33:58,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 762 [2022-07-12 12:33:58,871 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:33:58,871 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 10, 10, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:33:58,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-12 12:33:59,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:33:59,089 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:33:59,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:33:59,089 INFO L85 PathProgramCache]: Analyzing trace with hash -794178793, now seen corresponding path program 1 times [2022-07-12 12:33:59,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:33:59,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891781200] [2022-07-12 12:33:59,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:33:59,091 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:33:59,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:33:59,092 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:33:59,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process