./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 35987657 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-?-3598765 [2022-07-21 11:03:48,654 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:03:48,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:03:48,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:03:48,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:03:48,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:03:48,695 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:03:48,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:03:48,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:03:48,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:03:48,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:03:48,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:03:48,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:03:48,717 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:03:48,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:03:48,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:03:48,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:03:48,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:03:48,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:03:48,733 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:03:48,734 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:03:48,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:03:48,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:03:48,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:03:48,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:03:48,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:03:48,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:03:48,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:03:48,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:03:48,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:03:48,748 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:03:48,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:03:48,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:03:48,750 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:03:48,751 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:03:48,752 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:03:48,752 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:03:48,753 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:03:48,753 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:03:48,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:03:48,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:03:48,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:03:48,763 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 11:03:48,796 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:03:48,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:03:48,797 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:03:48,797 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:03:48,798 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:03:48,798 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:03:48,798 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:03:48,799 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:03:48,799 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:03:48,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:03:48,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 11:03:48,800 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:03:48,800 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:03:48,800 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:03:48,800 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:03:48,801 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:03:48,801 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:03:48,801 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:03:48,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:03:48,802 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:03:48,802 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:03:48,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:03:48,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:03:48,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:03:48,802 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:03:48,803 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 11:03:48,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 11:03:48,803 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:03:48,803 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:03:48,803 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:03:48,804 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26d71a6766df17a2d23a86b348a9251fef4bcae90cf6020641e74c486ac2b1eb [2022-07-21 11:03:49,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:03:49,161 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:03:49,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:03:49,165 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:03:49,167 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:03:49,169 INFO L432 ainManager$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 [2022-07-21 11:03:49,228 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc7c6f5d6/18a6ab7cfb62455e9024469464ce6a5f/FLAGf3f78ea79 [2022-07-21 11:03:49,916 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:03:49,917 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 [2022-07-21 11:03:49,981 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc7c6f5d6/18a6ab7cfb62455e9024469464ce6a5f/FLAGf3f78ea79 [2022-07-21 11:03:50,255 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc7c6f5d6/18a6ab7cfb62455e9024469464ce6a5f [2022-07-21 11:03:50,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:03:50,258 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:03:50,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:03:50,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:03:50,264 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:03:50,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:03:50" (1/1) ... [2022-07-21 11:03:50,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6644de84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:03:50, skipping insertion in model container [2022-07-21 11:03:50,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:03:50" (1/1) ... [2022-07-21 11:03:50,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:03:50,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:03:51,317 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] [2022-07-21 11:03:52,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:03:52,104 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:03:52,227 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] [2022-07-21 11:03:52,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:03:52,585 INFO L208 MainTranslator]: Completed translation [2022-07-21 11:03:52,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:03:52 WrapperNode [2022-07-21 11:03:52,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 11:03:52,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 11:03:52,588 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 11:03:52,588 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 11:03:52,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:03:52" (1/1) ... [2022-07-21 11:03:52,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:03:52" (1/1) ... [2022-07-21 11:03:52,865 INFO L137 Inliner]: procedures = 310, calls = 1780, calls flagged for inlining = 174, calls inlined = 157, statements flattened = 5104 [2022-07-21 11:03:52,866 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 11:03:52,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 11:03:52,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 11:03:52,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 11:03:52,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:03:52" (1/1) ... [2022-07-21 11:03:52,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:03:52" (1/1) ... [2022-07-21 11:03:52,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:03:52" (1/1) ... [2022-07-21 11:03:52,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:03:52" (1/1) ... [2022-07-21 11:03:53,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:03:52" (1/1) ... [2022-07-21 11:03:53,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:03:52" (1/1) ... [2022-07-21 11:03:53,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:03:52" (1/1) ... [2022-07-21 11:03:53,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 11:03:53,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 11:03:53,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 11:03:53,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 11:03:53,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:03:52" (1/1) ... [2022-07-21 11:03:53,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:03:53,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:03:53,156 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) [2022-07-21 11:03:53,183 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 [2022-07-21 11:03:53,198 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-21 11:03:53,198 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-21 11:03:53,198 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2022-07-21 11:03:53,198 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2022-07-21 11:03:53,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 11:03:53,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 11:03:53,199 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-21 11:03:53,199 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-21 11:03:53,199 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_dmac_soft_reset [2022-07-21 11:03:53,199 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_dmac_soft_reset [2022-07-21 11:03:53,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 11:03:53,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 11:03:53,200 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2022-07-21 11:03:53,200 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2022-07-21 11:03:53,200 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-21 11:03:53,200 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-21 11:03:53,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 11:03:53,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 11:03:53,201 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_remove [2022-07-21 11:03:53,201 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_remove [2022-07-21 11:03:53,201 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-21 11:03:53,201 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_eeprom_send_cmd [2022-07-21 11:03:53,201 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_eeprom_send_cmd [2022-07-21 11:03:53,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-21 11:03:53,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-21 11:03:53,202 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-21 11:03:53,202 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-21 11:03:53,202 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_free_rx_ring [2022-07-21 11:03:53,202 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_free_rx_ring [2022-07-21 11:03:53,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 11:03:53,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 11:03:53,202 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-21 11:03:53,202 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-21 11:03:53,203 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-21 11:03:53,203 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-21 11:03:53,203 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-21 11:03:53,204 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-21 11:03:53,204 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 11:03:53,204 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 11:03:53,204 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_reg_read [2022-07-21 11:03:53,204 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_reg_read [2022-07-21 11:03:53,204 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 11:03:53,204 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 11:03:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_set_mac_address [2022-07-21 11:03:53,205 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_set_mac_address [2022-07-21 11:03:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 11:03:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_get_stats [2022-07-21 11:03:53,205 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_get_stats [2022-07-21 11:03:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-07-21 11:03:53,206 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-07-21 11:03:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-21 11:03:53,206 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-21 11:03:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-07-21 11:03:53,206 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-07-21 11:03:53,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 11:03:53,207 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-21 11:03:53,207 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-21 11:03:53,208 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-21 11:03:53,208 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-21 11:03:53,208 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-21 11:03:53,208 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-21 11:03:53,208 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-21 11:03:53,208 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-21 11:03:53,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-21 11:03:53,209 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_open [2022-07-21 11:03:53,209 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_open [2022-07-21 11:03:53,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 11:03:53,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 11:03:53,209 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 11:03:53,209 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 11:03:53,210 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-07-21 11:03:53,210 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-07-21 11:03:53,210 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-21 11:03:53,210 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-21 11:03:53,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 11:03:53,210 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-21 11:03:53,210 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-21 11:03:53,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 11:03:53,211 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-21 11:03:53,211 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-21 11:03:53,211 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 11:03:53,211 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 11:03:53,211 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 11:03:53,211 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 11:03:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-21 11:03:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-21 11:03:53,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-21 11:03:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 11:03:53,212 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 11:03:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-21 11:03:53,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-21 11:03:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-21 11:03:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_eeprom_enable_access [2022-07-21 11:03:53,213 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_eeprom_enable_access [2022-07-21 11:03:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-07-21 11:03:53,213 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-07-21 11:03:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_reg_write [2022-07-21 11:03:53,213 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_reg_write [2022-07-21 11:03:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 11:03:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 11:03:53,214 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 11:03:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 11:03:53,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 11:03:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-21 11:03:53,214 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-21 11:03:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-07-21 11:03:53,215 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-07-21 11:03:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-21 11:03:53,215 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-21 11:03:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 11:03:53,215 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 11:03:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-21 11:03:53,215 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-21 11:03:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 11:03:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-21 11:03:53,216 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-21 11:03:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-07-21 11:03:53,216 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-07-21 11:03:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 11:03:53,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 11:03:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_set_multicast_list [2022-07-21 11:03:53,217 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_set_multicast_list [2022-07-21 11:03:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 11:03:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-21 11:03:53,217 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-21 11:03:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-21 11:03:53,217 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-21 11:03:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_alloc_rx_buffer [2022-07-21 11:03:53,218 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_alloc_rx_buffer [2022-07-21 11:03:53,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 11:03:53,218 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-21 11:03:53,218 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-21 11:03:53,218 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_stop_rx [2022-07-21 11:03:53,218 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_stop_rx [2022-07-21 11:03:53,218 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-21 11:03:53,219 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-21 11:03:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 11:03:53,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 11:03:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 11:03:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 11:03:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-21 11:03:53,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-21 11:03:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-07-21 11:03:53,220 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-07-21 11:03:53,220 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_isr [2022-07-21 11:03:53,220 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_isr [2022-07-21 11:03:53,220 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2022-07-21 11:03:53,220 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2022-07-21 11:03:53,220 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_do_ioctl [2022-07-21 11:03:53,220 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_do_ioctl [2022-07-21 11:03:53,220 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_poll_controller [2022-07-21 11:03:53,221 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_poll_controller [2022-07-21 11:03:53,221 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-21 11:03:53,221 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-21 11:03:53,221 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-07-21 11:03:53,221 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-07-21 11:03:53,221 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 11:03:53,221 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 11:03:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_stop_tx [2022-07-21 11:03:53,222 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_stop_tx [2022-07-21 11:03:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-21 11:03:53,222 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-21 11:03:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-21 11:03:53,222 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-21 11:03:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 11:03:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_free_tx_ring [2022-07-21 11:03:53,223 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_free_tx_ring [2022-07-21 11:03:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-07-21 11:03:53,223 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-07-21 11:03:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_pci_flush_write [2022-07-21 11:03:53,223 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_pci_flush_write [2022-07-21 11:03:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 11:03:53,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 11:03:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-21 11:03:53,224 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-21 11:03:54,026 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 11:03:54,028 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 11:03:54,239 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 11:03:57,231 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 11:03:57,246 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 11:03:57,246 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 11:03:57,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:03:57 BoogieIcfgContainer [2022-07-21 11:03:57,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 11:03:57,274 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 11:03:57,277 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 11:03:57,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 11:03:57,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:03:50" (1/3) ... [2022-07-21 11:03:57,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9bff72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:03:57, skipping insertion in model container [2022-07-21 11:03:57,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:03:52" (2/3) ... [2022-07-21 11:03:57,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9bff72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:03:57, skipping insertion in model container [2022-07-21 11:03:57,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:03:57" (3/3) ... [2022-07-21 11:03:57,282 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 [2022-07-21 11:03:57,294 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 11:03:57,295 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 11:03:57,378 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 11:03:57,383 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@19d88994, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@9d8afe9 [2022-07-21 11:03:57,383 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 11:03:57,392 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) [2022-07-21 11:03:57,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-21 11:03:57,406 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:03:57,407 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] [2022-07-21 11:03:57,408 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:03:57,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:03:57,412 INFO L85 PathProgramCache]: Analyzing trace with hash 497767634, now seen corresponding path program 1 times [2022-07-21 11:03:57,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:03:57,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634062623] [2022-07-21 11:03:57,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:03:57,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:03:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:03:57,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:03:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:03:57,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 11:03:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:03:57,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 11:03:57,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:03:57,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 11:03:57,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:03:57,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 11:03:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:03:57,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 11:03:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:03:57,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 11:03:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:03:57,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 11:03:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:03:57,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:03:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:03:57,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 11:03:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:03:57,996 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-21 11:03:57,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:03:57,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634062623] [2022-07-21 11:03:57,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634062623] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:03:57,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:03:57,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 11:03:57,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793093469] [2022-07-21 11:03:58,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:03:58,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 11:03:58,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:03:58,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 11:03:58,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 11:03:58,041 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) [2022-07-21 11:04:02,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:04:02,866 INFO L93 Difference]: Finished difference Result 5490 states and 8345 transitions. [2022-07-21 11:04:02,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:04:02,868 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 [2022-07-21 11:04:02,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:04:02,903 INFO L225 Difference]: With dead ends: 5490 [2022-07-21 11:04:02,904 INFO L226 Difference]: Without dead ends: 3626 [2022-07-21 11:04:02,918 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 [2022-07-21 11:04:02,920 INFO L413 NwaCegarLoop]: 2741 mSDtfsCounter, 3241 mSDsluCounter, 2525 mSDsCounter, 0 mSdLazyCounter, 2155 mSolverCounterSat, 1196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s 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, 4.5s IncrementalHoareTripleChecker+Time [2022-07-21 11:04:02,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3627 Valid, 5266 Invalid, 3351 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1196 Valid, 2155 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-07-21 11:04:02,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3626 states. [2022-07-21 11:04:03,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3626 to 3448. [2022-07-21 11:04:03,119 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) [2022-07-21 11:04:03,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3448 states to 3448 states and 4890 transitions. [2022-07-21 11:04:03,152 INFO L78 Accepts]: Start accepts. Automaton has 3448 states and 4890 transitions. Word has length 80 [2022-07-21 11:04:03,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:04:03,154 INFO L495 AbstractCegarLoop]: Abstraction has 3448 states and 4890 transitions. [2022-07-21 11:04:03,154 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) [2022-07-21 11:04:03,154 INFO L276 IsEmpty]: Start isEmpty. Operand 3448 states and 4890 transitions. [2022-07-21 11:04:03,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-21 11:04:03,164 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:04:03,164 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] [2022-07-21 11:04:03,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 11:04:03,165 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:04:03,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:04:03,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1152572705, now seen corresponding path program 1 times [2022-07-21 11:04:03,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:04:03,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164958757] [2022-07-21 11:04:03,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:04:03,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:04:03,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:03,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:04:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:03,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 11:04:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:03,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 11:04:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:03,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 11:04:03,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:03,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 11:04:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:03,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 11:04:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:03,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 11:04:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:03,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 11:04:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:03,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:04:03,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:03,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 11:04:03,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:03,523 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-21 11:04:03,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:04:03,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164958757] [2022-07-21 11:04:03,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164958757] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:04:03,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:04:03,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:04:03,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812198370] [2022-07-21 11:04:03,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:04:03,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:04:03,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:04:03,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:04:03,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:04:03,528 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) [2022-07-21 11:04:09,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:04:09,542 INFO L93 Difference]: Finished difference Result 10645 states and 15172 transitions. [2022-07-21 11:04:09,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 11:04:09,543 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 [2022-07-21 11:04:09,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:04:09,585 INFO L225 Difference]: With dead ends: 10645 [2022-07-21 11:04:09,585 INFO L226 Difference]: Without dead ends: 7218 [2022-07-21 11:04:09,601 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 [2022-07-21 11:04:09,602 INFO L413 NwaCegarLoop]: 2704 mSDtfsCounter, 3172 mSDsluCounter, 5558 mSDsCounter, 0 mSdLazyCounter, 5001 mSolverCounterSat, 1167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s 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, 5.7s IncrementalHoareTripleChecker+Time [2022-07-21 11:04:09,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3572 Valid, 8262 Invalid, 6168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1167 Valid, 5001 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-07-21 11:04:09,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7218 states. [2022-07-21 11:04:09,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7218 to 6934. [2022-07-21 11:04:09,897 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) [2022-07-21 11:04:09,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6934 states to 6934 states and 9845 transitions. [2022-07-21 11:04:09,926 INFO L78 Accepts]: Start accepts. Automaton has 6934 states and 9845 transitions. Word has length 85 [2022-07-21 11:04:09,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:04:09,928 INFO L495 AbstractCegarLoop]: Abstraction has 6934 states and 9845 transitions. [2022-07-21 11:04:09,929 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) [2022-07-21 11:04:09,929 INFO L276 IsEmpty]: Start isEmpty. Operand 6934 states and 9845 transitions. [2022-07-21 11:04:09,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2022-07-21 11:04:09,967 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:04:09,968 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] [2022-07-21 11:04:09,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 11:04:09,968 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:04:09,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:04:09,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1563537257, now seen corresponding path program 1 times [2022-07-21 11:04:09,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:04:09,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955544720] [2022-07-21 11:04:09,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:04:09,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:04:10,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:04:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 11:04:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 11:04:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 11:04:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 11:04:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 11:04:10,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 11:04:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 11:04:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:04:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 11:04:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 11:04:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:04:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:04:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:04:10,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 11:04:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-21 11:04:10,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 11:04:10,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 11:04:10,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 11:04:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:04:10,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 11:04:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 11:04:10,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:04:10,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 11:04:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:04:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:04:10,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 11:04:10,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 11:04:10,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 11:04:10,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 11:04:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:04:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:04:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 11:04:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-21 11:04:10,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-21 11:04:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 11:04:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:04:10,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-21 11:04:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 11:04:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-21 11:04:10,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:04:10,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-21 11:04:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 11:04:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 11:04:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 11:04:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-21 11:04:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-21 11:04:10,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 11:04:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-21 11:04:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:04:10,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-21 11:04:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-21 11:04:10,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-07-21 11:04:10,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-21 11:04:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-21 11:04:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-21 11:04:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:10,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-21 11:04:10,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 11:04:10,958 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) [2022-07-21 11:04:10,964 INFO L158 Benchmark]: Toolchain (without parser) took 20705.53ms. Allocated memory was 56.6MB in the beginning and 685.8MB in the end (delta: 629.1MB). Free memory was 34.7MB in the beginning and 559.7MB in the end (delta: -525.0MB). Peak memory consumption was 103.7MB. Max. memory is 16.1GB. [2022-07-21 11:04:10,965 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 56.6MB. Free memory was 37.9MB in the beginning and 37.9MB in the end (delta: 29.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 11:04:10,966 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2326.76ms. Allocated memory was 56.6MB in the beginning and 159.4MB in the end (delta: 102.8MB). Free memory was 34.6MB in the beginning and 98.5MB in the end (delta: -63.9MB). Peak memory consumption was 73.2MB. Max. memory is 16.1GB. [2022-07-21 11:04:10,968 INFO L158 Benchmark]: Boogie Procedure Inliner took 278.16ms. Allocated memory is still 159.4MB. Free memory was 98.5MB in the beginning and 70.3MB in the end (delta: 28.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-07-21 11:04:10,968 INFO L158 Benchmark]: Boogie Preprocessor took 257.83ms. Allocated memory is still 159.4MB. Free memory was 70.3MB in the beginning and 71.8MB in the end (delta: -1.5MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. [2022-07-21 11:04:10,968 INFO L158 Benchmark]: RCFGBuilder took 4123.17ms. Allocated memory was 159.4MB in the beginning and 318.8MB in the end (delta: 159.4MB). Free memory was 71.8MB in the beginning and 95.1MB in the end (delta: -23.4MB). Peak memory consumption was 136.7MB. Max. memory is 16.1GB. [2022-07-21 11:04:10,969 INFO L158 Benchmark]: TraceAbstraction took 13689.30ms. Allocated memory was 499.1MB in the beginning and 685.8MB in the end (delta: 186.6MB). Free memory was 405.6MB in the beginning and 559.7MB in the end (delta: -154.0MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2022-07-21 11:04:10,970 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 56.6MB. Free memory was 37.9MB in the beginning and 37.9MB in the end (delta: 29.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2326.76ms. Allocated memory was 56.6MB in the beginning and 159.4MB in the end (delta: 102.8MB). Free memory was 34.6MB in the beginning and 98.5MB in the end (delta: -63.9MB). Peak memory consumption was 73.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 278.16ms. Allocated memory is still 159.4MB. Free memory was 98.5MB in the beginning and 70.3MB in the end (delta: 28.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 257.83ms. Allocated memory is still 159.4MB. Free memory was 70.3MB in the beginning and 71.8MB in the end (delta: -1.5MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. * RCFGBuilder took 4123.17ms. Allocated memory was 159.4MB in the beginning and 318.8MB in the end (delta: 159.4MB). Free memory was 71.8MB in the beginning and 95.1MB in the end (delta: -23.4MB). Peak memory consumption was 136.7MB. Max. memory is 16.1GB. * TraceAbstraction took 13689.30ms. Allocated memory was 499.1MB in the beginning and 685.8MB in the end (delta: 186.6MB). Free memory was 405.6MB in the beginning and 559.7MB in the end (delta: -154.0MB). Peak memory consumption was 31.7MB. 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. [2022-07-21 11:04:11,020 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-?-3598765 [2022-07-21 11:04:12,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:04:12,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:04:12,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:04:12,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:04:12,850 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:04:12,853 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:04:12,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:04:12,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:04:12,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:04:12,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:04:12,866 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:04:12,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:04:12,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:04:12,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:04:12,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:04:12,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:04:12,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:04:12,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:04:12,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:04:12,883 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:04:12,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:04:12,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:04:12,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:04:12,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:04:12,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:04:12,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:04:12,895 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:04:12,895 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:04:12,896 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:04:12,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:04:12,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:04:12,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:04:12,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:04:12,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:04:12,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:04:12,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:04:12,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:04:12,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:04:12,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:04:12,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:04:12,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:04:12,912 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 11:04:12,935 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:04:12,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:04:12,936 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:04:12,936 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:04:12,937 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:04:12,937 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:04:12,938 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:04:12,938 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:04:12,938 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:04:12,939 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:04:12,939 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:04:12,939 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:04:12,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:04:12,940 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:04:12,940 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 11:04:12,940 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 11:04:12,940 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 11:04:12,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:04:12,941 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:04:12,941 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:04:12,941 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:04:12,941 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:04:12,941 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:04:12,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:04:12,942 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:04:12,942 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:04:12,942 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:04:12,942 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 11:04:12,942 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 11:04:12,943 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:04:12,943 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:04:12,943 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:04:12,943 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 11:04:12,943 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26d71a6766df17a2d23a86b348a9251fef4bcae90cf6020641e74c486ac2b1eb [2022-07-21 11:04:13,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:04:13,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:04:13,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:04:13,298 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:04:13,299 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:04:13,300 INFO L432 ainManager$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 [2022-07-21 11:04:13,356 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/022eb4575/d95602bd86e247ab8414ef34fa452ade/FLAG164b8e38c [2022-07-21 11:04:14,024 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:04:14,024 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 [2022-07-21 11:04:14,065 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/022eb4575/d95602bd86e247ab8414ef34fa452ade/FLAG164b8e38c [2022-07-21 11:04:14,376 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/022eb4575/d95602bd86e247ab8414ef34fa452ade [2022-07-21 11:04:14,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:04:14,378 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:04:14,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:04:14,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:04:14,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:04:14,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:04:14" (1/1) ... [2022-07-21 11:04:14,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dc531ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:04:14, skipping insertion in model container [2022-07-21 11:04:14,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:04:14" (1/1) ... [2022-07-21 11:04:14,388 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:04:14,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:04:15,373 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] [2022-07-21 11:04:16,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:04:16,276 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 11:04:16,320 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:04:16,427 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] [2022-07-21 11:04:16,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:04:16,620 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:04:16,751 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] [2022-07-21 11:04:16,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:04:17,162 INFO L208 MainTranslator]: Completed translation [2022-07-21 11:04:17,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:04:17 WrapperNode [2022-07-21 11:04:17,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 11:04:17,164 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 11:04:17,164 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 11:04:17,164 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 11:04:17,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:04:17" (1/1) ... [2022-07-21 11:04:17,274 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:04:17" (1/1) ... [2022-07-21 11:04:17,410 INFO L137 Inliner]: procedures = 324, calls = 1780, calls flagged for inlining = 174, calls inlined = 157, statements flattened = 4537 [2022-07-21 11:04:17,411 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 11:04:17,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 11:04:17,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 11:04:17,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 11:04:17,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:04:17" (1/1) ... [2022-07-21 11:04:17,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:04:17" (1/1) ... [2022-07-21 11:04:17,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:04:17" (1/1) ... [2022-07-21 11:04:17,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:04:17" (1/1) ... [2022-07-21 11:04:17,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:04:17" (1/1) ... [2022-07-21 11:04:17,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:04:17" (1/1) ... [2022-07-21 11:04:17,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:04:17" (1/1) ... [2022-07-21 11:04:17,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 11:04:17,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 11:04:17,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 11:04:17,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 11:04:17,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:04:17" (1/1) ... [2022-07-21 11:04:17,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:04:17,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:04:17,648 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) [2022-07-21 11:04:17,670 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 [2022-07-21 11:04:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 11:04:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-21 11:04:17,684 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-21 11:04:17,684 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2022-07-21 11:04:17,684 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2022-07-21 11:04:17,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 11:04:17,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 11:04:17,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 11:04:17,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 11:04:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 11:04:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-21 11:04:17,685 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-21 11:04:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_dmac_soft_reset [2022-07-21 11:04:17,685 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_dmac_soft_reset [2022-07-21 11:04:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 11:04:17,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 11:04:17,686 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2022-07-21 11:04:17,686 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2022-07-21 11:04:17,686 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-21 11:04:17,686 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-21 11:04:17,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 11:04:17,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 11:04:17,687 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_remove [2022-07-21 11:04:17,687 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_remove [2022-07-21 11:04:17,687 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-21 11:04:17,687 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_eeprom_send_cmd [2022-07-21 11:04:17,687 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_eeprom_send_cmd [2022-07-21 11:04:17,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-21 11:04:17,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-21 11:04:17,688 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-21 11:04:17,688 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-21 11:04:17,688 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_free_rx_ring [2022-07-21 11:04:17,688 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_free_rx_ring [2022-07-21 11:04:17,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 11:04:17,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 11:04:17,689 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-21 11:04:17,689 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-21 11:04:17,689 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-21 11:04:17,689 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-21 11:04:17,690 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-21 11:04:17,690 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-21 11:04:17,690 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 11:04:17,690 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 11:04:17,690 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_reg_read [2022-07-21 11:04:17,690 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_reg_read [2022-07-21 11:04:17,690 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 11:04:17,691 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 11:04:17,691 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_set_mac_address [2022-07-21 11:04:17,691 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_set_mac_address [2022-07-21 11:04:17,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 11:04:17,691 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_get_stats [2022-07-21 11:04:17,691 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_get_stats [2022-07-21 11:04:17,691 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-07-21 11:04:17,691 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-07-21 11:04:17,691 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-21 11:04:17,691 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-21 11:04:17,692 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-07-21 11:04:17,692 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-07-21 11:04:17,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 11:04:17,692 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-21 11:04:17,692 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-21 11:04:17,692 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-21 11:04:17,692 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-21 11:04:17,692 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-21 11:04:17,692 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-21 11:04:17,692 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-21 11:04:17,692 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-21 11:04:17,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-21 11:04:17,693 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_open [2022-07-21 11:04:17,693 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_open [2022-07-21 11:04:17,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 11:04:17,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 11:04:17,693 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 11:04:17,693 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 11:04:17,693 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-07-21 11:04:17,693 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-07-21 11:04:17,693 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-21 11:04:17,693 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-21 11:04:17,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 11:04:17,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 11:04:17,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 11:04:17,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 11:04:17,694 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-21 11:04:17,694 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-21 11:04:17,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 11:04:17,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 11:04:17,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 11:04:17,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 11:04:17,694 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-21 11:04:17,694 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-21 11:04:17,695 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 11:04:17,695 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 11:04:17,695 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 11:04:17,695 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 11:04:17,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-21 11:04:17,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-21 11:04:17,695 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 11:04:17,695 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 11:04:17,695 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-21 11:04:17,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-21 11:04:17,695 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_eeprom_enable_access [2022-07-21 11:04:17,695 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_eeprom_enable_access [2022-07-21 11:04:17,696 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-07-21 11:04:17,696 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-07-21 11:04:17,696 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_reg_write [2022-07-21 11:04:17,696 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_reg_write [2022-07-21 11:04:17,696 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 11:04:17,696 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 11:04:17,696 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 11:04:17,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 11:04:17,696 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-21 11:04:17,696 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-21 11:04:17,696 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-07-21 11:04:17,697 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-07-21 11:04:17,697 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-21 11:04:17,697 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-21 11:04:17,697 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 11:04:17,697 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 11:04:17,697 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-21 11:04:17,697 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-21 11:04:17,697 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-21 11:04:17,697 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-21 11:04:17,697 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-07-21 11:04:17,697 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-07-21 11:04:17,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 11:04:17,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-21 11:04:17,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 11:04:17,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-21 11:04:17,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 11:04:17,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 11:04:17,698 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_set_multicast_list [2022-07-21 11:04:17,698 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_set_multicast_list [2022-07-21 11:04:17,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 11:04:17,698 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-21 11:04:17,698 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-21 11:04:17,698 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-21 11:04:17,698 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-21 11:04:17,698 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_alloc_rx_buffer [2022-07-21 11:04:17,698 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_alloc_rx_buffer [2022-07-21 11:04:17,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 11:04:17,699 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-21 11:04:17,699 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-21 11:04:17,699 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_stop_rx [2022-07-21 11:04:17,699 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_stop_rx [2022-07-21 11:04:17,699 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-21 11:04:17,699 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-21 11:04:17,699 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 11:04:17,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 11:04:17,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 11:04:17,699 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 11:04:17,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-21 11:04:17,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-21 11:04:17,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-21 11:04:17,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-21 11:04:17,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 11:04:17,700 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-07-21 11:04:17,700 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-07-21 11:04:17,700 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_isr [2022-07-21 11:04:17,700 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_isr [2022-07-21 11:04:17,700 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2022-07-21 11:04:17,700 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2022-07-21 11:04:17,700 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_do_ioctl [2022-07-21 11:04:17,700 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_do_ioctl [2022-07-21 11:04:17,701 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_poll_controller [2022-07-21 11:04:17,701 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_poll_controller [2022-07-21 11:04:17,701 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-21 11:04:17,701 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-21 11:04:17,701 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-07-21 11:04:17,701 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-07-21 11:04:17,701 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 11:04:17,701 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 11:04:17,701 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_stop_tx [2022-07-21 11:04:17,702 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_stop_tx [2022-07-21 11:04:17,702 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-21 11:04:17,702 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-21 11:04:17,702 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-21 11:04:17,702 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-21 11:04:17,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 11:04:17,702 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_free_tx_ring [2022-07-21 11:04:17,702 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_free_tx_ring [2022-07-21 11:04:17,702 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-07-21 11:04:17,702 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-07-21 11:04:17,702 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_pci_flush_write [2022-07-21 11:04:17,703 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_pci_flush_write [2022-07-21 11:04:17,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 11:04:17,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 11:04:17,703 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-21 11:04:17,703 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-21 11:04:18,475 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 11:04:18,478 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 11:04:18,935 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 11:04:53,081 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 11:04:53,096 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 11:04:53,096 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 11:04:53,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:04:53 BoogieIcfgContainer [2022-07-21 11:04:53,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 11:04:53,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 11:04:53,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 11:04:53,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 11:04:53,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:04:14" (1/3) ... [2022-07-21 11:04:53,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6276a2e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:04:53, skipping insertion in model container [2022-07-21 11:04:53,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:04:17" (2/3) ... [2022-07-21 11:04:53,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6276a2e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:04:53, skipping insertion in model container [2022-07-21 11:04:53,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:04:53" (3/3) ... [2022-07-21 11:04:53,107 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 [2022-07-21 11:04:53,119 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 11:04:53,120 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 11:04:53,197 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 11:04:53,202 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@6cfebf49, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@468cbb87 [2022-07-21 11:04:53,202 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 11:04:53,212 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) [2022-07-21 11:04:53,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-21 11:04:53,232 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:04:53,233 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] [2022-07-21 11:04:53,233 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:04:53,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:04:53,238 INFO L85 PathProgramCache]: Analyzing trace with hash 934868167, now seen corresponding path program 1 times [2022-07-21 11:04:53,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:04:53,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [443194757] [2022-07-21 11:04:53,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:04:53,253 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:04:53,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:04:53,256 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) [2022-07-21 11:04:53,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 11:04:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:54,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 1046 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 11:04:54,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:04:54,308 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-21 11:04:54,308 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:04:54,309 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:04:54,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [443194757] [2022-07-21 11:04:54,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [443194757] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:04:54,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:04:54,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:04:54,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464019126] [2022-07-21 11:04:54,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:04:54,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:04:54,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:04:54,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:04:54,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:04:54,355 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) [2022-07-21 11:04:54,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:04:54,581 INFO L93 Difference]: Finished difference Result 3216 states and 4662 transitions. [2022-07-21 11:04:54,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:04:54,585 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 [2022-07-21 11:04:54,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:04:54,614 INFO L225 Difference]: With dead ends: 3216 [2022-07-21 11:04:54,614 INFO L226 Difference]: Without dead ends: 1571 [2022-07-21 11:04:54,626 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 [2022-07-21 11:04:54,629 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 [2022-07-21 11:04:54,630 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] [2022-07-21 11:04:54,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1571 states. [2022-07-21 11:04:54,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1571 to 1571. [2022-07-21 11:04:54,793 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) [2022-07-21 11:04:54,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 2241 transitions. [2022-07-21 11:04:54,807 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 2241 transitions. Word has length 80 [2022-07-21 11:04:54,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:04:54,810 INFO L495 AbstractCegarLoop]: Abstraction has 1571 states and 2241 transitions. [2022-07-21 11:04:54,811 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) [2022-07-21 11:04:54,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 2241 transitions. [2022-07-21 11:04:54,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-21 11:04:54,820 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:04:54,821 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] [2022-07-21 11:04:54,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-21 11:04:55,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:04:55,036 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:04:55,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:04:55,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1121554641, now seen corresponding path program 1 times [2022-07-21 11:04:55,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:04:55,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1510223057] [2022-07-21 11:04:55,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:04:55,039 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:04:55,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:04:55,042 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) [2022-07-21 11:04:55,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 11:04:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:55,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 11:04:55,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:04:56,015 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-21 11:04:56,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:04:56,146 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-21 11:04:56,147 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:04:56,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1510223057] [2022-07-21 11:04:56,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1510223057] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:04:56,147 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:04:56,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-21 11:04:56,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057645661] [2022-07-21 11:04:56,148 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:04:56,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:04:56,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:04:56,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:04:56,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:04:56,150 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) [2022-07-21 11:04:56,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:04:56,434 INFO L93 Difference]: Finished difference Result 3119 states and 4451 transitions. [2022-07-21 11:04:56,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 11:04:56,436 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 [2022-07-21 11:04:56,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:04:56,445 INFO L225 Difference]: With dead ends: 3119 [2022-07-21 11:04:56,446 INFO L226 Difference]: Without dead ends: 1574 [2022-07-21 11:04:56,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-07-21 11:04:56,453 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 [2022-07-21 11:04:56,454 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] [2022-07-21 11:04:56,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2022-07-21 11:04:56,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1574. [2022-07-21 11:04:56,499 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) [2022-07-21 11:04:56,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 2244 transitions. [2022-07-21 11:04:56,510 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 2244 transitions. Word has length 81 [2022-07-21 11:04:56,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:04:56,511 INFO L495 AbstractCegarLoop]: Abstraction has 1574 states and 2244 transitions. [2022-07-21 11:04:56,511 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) [2022-07-21 11:04:56,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 2244 transitions. [2022-07-21 11:04:56,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-21 11:04:56,513 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:04:56,513 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] [2022-07-21 11:04:56,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 11:04:56,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:04:56,728 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:04:56,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:04:56,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1225041735, now seen corresponding path program 2 times [2022-07-21 11:04:56,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:04:56,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [53392835] [2022-07-21 11:04:56,730 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 11:04:56,730 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:04:56,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:04:56,731 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) [2022-07-21 11:04:56,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 11:04:57,512 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 11:04:57,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 11:04:57,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:04:57,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:04:57,605 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-07-21 11:04:57,605 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:04:57,606 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:04:57,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [53392835] [2022-07-21 11:04:57,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [53392835] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:04:57,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:04:57,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:04:57,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746636767] [2022-07-21 11:04:57,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:04:57,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:04:57,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:04:57,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:04:57,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:04:57,607 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) [2022-07-21 11:04:57,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:04:57,877 INFO L93 Difference]: Finished difference Result 4638 states and 6620 transitions. [2022-07-21 11:04:57,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:04:57,878 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 [2022-07-21 11:04:57,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:04:57,897 INFO L225 Difference]: With dead ends: 4638 [2022-07-21 11:04:57,898 INFO L226 Difference]: Without dead ends: 3094 [2022-07-21 11:04:57,906 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 [2022-07-21 11:04:57,907 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 [2022-07-21 11:04:57,908 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] [2022-07-21 11:04:57,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3094 states. [2022-07-21 11:04:58,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3094 to 3094. [2022-07-21 11:04:58,079 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) [2022-07-21 11:04:58,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3094 states to 3094 states and 4414 transitions. [2022-07-21 11:04:58,100 INFO L78 Accepts]: Start accepts. Automaton has 3094 states and 4414 transitions. Word has length 84 [2022-07-21 11:04:58,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:04:58,101 INFO L495 AbstractCegarLoop]: Abstraction has 3094 states and 4414 transitions. [2022-07-21 11:04:58,101 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) [2022-07-21 11:04:58,101 INFO L276 IsEmpty]: Start isEmpty. Operand 3094 states and 4414 transitions. [2022-07-21 11:04:58,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-21 11:04:58,104 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:04:58,104 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] [2022-07-21 11:04:58,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 11:04:58,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:04:58,320 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:04:58,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:04:58,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1801508975, now seen corresponding path program 1 times [2022-07-21 11:04:58,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:04:58,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [763414958] [2022-07-21 11:04:58,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:04:58,323 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:04:58,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:04:58,324 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) [2022-07-21 11:04:58,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 11:04:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:04:59,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 11:04:59,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:04:59,347 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-07-21 11:04:59,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:04:59,348 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:04:59,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [763414958] [2022-07-21 11:04:59,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [763414958] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:04:59,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:04:59,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 11:04:59,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166283132] [2022-07-21 11:04:59,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:04:59,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:04:59,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:04:59,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:04:59,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:04:59,349 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) [2022-07-21 11:04:59,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:04:59,832 INFO L93 Difference]: Finished difference Result 9219 states and 13174 transitions. [2022-07-21 11:04:59,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:04:59,833 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 [2022-07-21 11:04:59,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:04:59,874 INFO L225 Difference]: With dead ends: 9219 [2022-07-21 11:04:59,874 INFO L226 Difference]: Without dead ends: 6150 [2022-07-21 11:04:59,891 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 [2022-07-21 11:04:59,893 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 [2022-07-21 11:04:59,894 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] [2022-07-21 11:04:59,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6150 states. [2022-07-21 11:05:00,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6150 to 6150. [2022-07-21 11:05:00,141 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) [2022-07-21 11:05:00,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6150 states to 6150 states and 8783 transitions. [2022-07-21 11:05:00,230 INFO L78 Accepts]: Start accepts. Automaton has 6150 states and 8783 transitions. Word has length 89 [2022-07-21 11:05:00,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:05:00,231 INFO L495 AbstractCegarLoop]: Abstraction has 6150 states and 8783 transitions. [2022-07-21 11:05:00,231 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) [2022-07-21 11:05:00,231 INFO L276 IsEmpty]: Start isEmpty. Operand 6150 states and 8783 transitions. [2022-07-21 11:05:00,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2022-07-21 11:05:00,259 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:05:00,260 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] [2022-07-21 11:05:00,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 11:05:00,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:05:00,480 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:05:00,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:05:00,481 INFO L85 PathProgramCache]: Analyzing trace with hash -420332833, now seen corresponding path program 1 times [2022-07-21 11:05:00,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:05:00,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [66281704] [2022-07-21 11:05:00,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:05:00,484 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:05:00,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:05:00,486 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) [2022-07-21 11:05:00,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 11:05:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:05:02,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 2428 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:05:02,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:05:02,222 INFO L134 CoverageAnalysis]: Checked inductivity of 964 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 920 trivial. 0 not checked. [2022-07-21 11:05:02,223 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:05:02,223 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:05:02,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [66281704] [2022-07-21 11:05:02,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [66281704] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:05:02,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:05:02,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:05:02,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246855934] [2022-07-21 11:05:02,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:05:02,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:05:02,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:05:02,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:05:02,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:05:02,226 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) [2022-07-21 11:05:02,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:05:02,903 INFO L93 Difference]: Finished difference Result 17146 states and 24421 transitions. [2022-07-21 11:05:02,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:05:02,904 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 [2022-07-21 11:05:02,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:05:02,987 INFO L225 Difference]: With dead ends: 17146 [2022-07-21 11:05:02,987 INFO L226 Difference]: Without dead ends: 11026 [2022-07-21 11:05:03,071 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 [2022-07-21 11:05:03,072 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 [2022-07-21 11:05:03,072 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] [2022-07-21 11:05:03,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11026 states. [2022-07-21 11:05:03,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11026 to 10966. [2022-07-21 11:05:03,473 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) [2022-07-21 11:05:03,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10966 states to 10966 states and 15604 transitions. [2022-07-21 11:05:03,523 INFO L78 Accepts]: Start accepts. Automaton has 10966 states and 15604 transitions. Word has length 471 [2022-07-21 11:05:03,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:05:03,524 INFO L495 AbstractCegarLoop]: Abstraction has 10966 states and 15604 transitions. [2022-07-21 11:05:03,525 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) [2022-07-21 11:05:03,526 INFO L276 IsEmpty]: Start isEmpty. Operand 10966 states and 15604 transitions. [2022-07-21 11:05:03,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2022-07-21 11:05:03,653 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:05:03,653 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] [2022-07-21 11:05:03,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-21 11:05:03,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:05:03,865 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:05:03,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:05:03,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1063400336, now seen corresponding path program 1 times [2022-07-21 11:05:03,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:05:03,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511499134] [2022-07-21 11:05:03,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:05:03,868 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:05:03,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:05:03,883 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) [2022-07-21 11:05:03,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 11:05:05,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:05:05,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 2556 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:05:05,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:05:05,803 INFO L134 CoverageAnalysis]: Checked inductivity of 970 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 926 trivial. 0 not checked. [2022-07-21 11:05:05,803 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:05:05,804 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:05:05,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511499134] [2022-07-21 11:05:05,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1511499134] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:05:05,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:05:05,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:05:05,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592539172] [2022-07-21 11:05:05,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:05:05,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:05:05,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:05:05,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:05:05,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:05:05,807 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) [2022-07-21 11:05:06,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:05:06,488 INFO L93 Difference]: Finished difference Result 28123 states and 40036 transitions. [2022-07-21 11:05:06,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:05:06,492 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 [2022-07-21 11:05:06,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:05:06,613 INFO L225 Difference]: With dead ends: 28123 [2022-07-21 11:05:06,614 INFO L226 Difference]: Without dead ends: 17187 [2022-07-21 11:05:06,665 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 [2022-07-21 11:05:06,667 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 [2022-07-21 11:05:06,667 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] [2022-07-21 11:05:06,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17187 states. [2022-07-21 11:05:07,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17187 to 17179. [2022-07-21 11:05:07,387 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) [2022-07-21 11:05:07,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17179 states to 17179 states and 24458 transitions. [2022-07-21 11:05:07,476 INFO L78 Accepts]: Start accepts. Automaton has 17179 states and 24458 transitions. Word has length 517 [2022-07-21 11:05:07,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:05:07,476 INFO L495 AbstractCegarLoop]: Abstraction has 17179 states and 24458 transitions. [2022-07-21 11:05:07,477 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) [2022-07-21 11:05:07,477 INFO L276 IsEmpty]: Start isEmpty. Operand 17179 states and 24458 transitions. [2022-07-21 11:05:07,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2022-07-21 11:05:07,526 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:05:07,527 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] [2022-07-21 11:05:07,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-21 11:05:07,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:05:07,745 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:05:07,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:05:07,745 INFO L85 PathProgramCache]: Analyzing trace with hash 775553112, now seen corresponding path program 1 times [2022-07-21 11:05:07,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:05:07,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1002718719] [2022-07-21 11:05:07,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:05:07,748 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:05:07,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:05:07,750 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) [2022-07-21 11:05:07,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-21 11:05:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:05:09,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 2654 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:05:09,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:05:09,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1180 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 950 trivial. 0 not checked. [2022-07-21 11:05:09,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:05:09,851 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:05:09,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1002718719] [2022-07-21 11:05:09,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1002718719] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:05:09,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:05:09,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:05:09,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364295292] [2022-07-21 11:05:09,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:05:09,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:05:09,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:05:09,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:05:09,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:05:09,854 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) [2022-07-21 11:05:10,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:05:10,687 INFO L93 Difference]: Finished difference Result 41041 states and 58352 transitions. [2022-07-21 11:05:10,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:05:10,688 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 [2022-07-21 11:05:10,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:05:10,814 INFO L225 Difference]: With dead ends: 41041 [2022-07-21 11:05:10,814 INFO L226 Difference]: Without dead ends: 23913 [2022-07-21 11:05:10,881 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 [2022-07-21 11:05:10,882 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, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 11:05:10,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2007 Valid, 5916 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 11:05:10,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23913 states. [2022-07-21 11:05:11,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23913 to 23849. [2022-07-21 11:05:11,841 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) [2022-07-21 11:05:11,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23849 states to 23849 states and 33846 transitions. [2022-07-21 11:05:11,955 INFO L78 Accepts]: Start accepts. Automaton has 23849 states and 33846 transitions. Word has length 552 [2022-07-21 11:05:11,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:05:11,956 INFO L495 AbstractCegarLoop]: Abstraction has 23849 states and 33846 transitions. [2022-07-21 11:05:11,957 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) [2022-07-21 11:05:11,957 INFO L276 IsEmpty]: Start isEmpty. Operand 23849 states and 33846 transitions. [2022-07-21 11:05:12,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2022-07-21 11:05:12,155 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:05:12,156 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] [2022-07-21 11:05:12,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-21 11:05:12,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:05:12,357 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:05:12,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:05:12,358 INFO L85 PathProgramCache]: Analyzing trace with hash 272930517, now seen corresponding path program 1 times [2022-07-21 11:05:12,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:05:12,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [532816923] [2022-07-21 11:05:12,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:05:12,361 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:05:12,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:05:12,363 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) [2022-07-21 11:05:12,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-21 11:05:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:05:14,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 2732 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 11:05:14,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:05:14,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 1118 trivial. 0 not checked. [2022-07-21 11:05:14,261 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:05:14,261 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:05:14,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [532816923] [2022-07-21 11:05:14,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [532816923] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:05:14,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:05:14,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 11:05:14,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693180402] [2022-07-21 11:05:14,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:05:14,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 11:05:14,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:05:14,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 11:05:14,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 11:05:14,265 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) [2022-07-21 11:05:15,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:05:15,980 INFO L93 Difference]: Finished difference Result 55601 states and 78910 transitions. [2022-07-21 11:05:15,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:05:15,980 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 [2022-07-21 11:05:15,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:05:16,139 INFO L225 Difference]: With dead ends: 55601 [2022-07-21 11:05:16,140 INFO L226 Difference]: Without dead ends: 31803 [2022-07-21 11:05:16,219 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 [2022-07-21 11:05:16,220 INFO L413 NwaCegarLoop]: 4170 mSDtfsCounter, 2351 mSDsluCounter, 5984 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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 [2022-07-21 11:05:16,220 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] [2022-07-21 11:05:16,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31803 states. [2022-07-21 11:05:17,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31803 to 23857. [2022-07-21 11:05:17,421 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) [2022-07-21 11:05:17,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23857 states to 23857 states and 33850 transitions. [2022-07-21 11:05:17,511 INFO L78 Accepts]: Start accepts. Automaton has 23857 states and 33850 transitions. Word has length 575 [2022-07-21 11:05:17,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:05:17,511 INFO L495 AbstractCegarLoop]: Abstraction has 23857 states and 33850 transitions. [2022-07-21 11:05:17,512 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) [2022-07-21 11:05:17,512 INFO L276 IsEmpty]: Start isEmpty. Operand 23857 states and 33850 transitions. [2022-07-21 11:05:17,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2022-07-21 11:05:17,572 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:05:17,572 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] [2022-07-21 11:05:17,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-21 11:05:17,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:05:17,792 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:05:17,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:05:17,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1315275553, now seen corresponding path program 1 times [2022-07-21 11:05:17,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:05:17,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339952323] [2022-07-21 11:05:17,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:05:17,795 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:05:17,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:05:17,796 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) [2022-07-21 11:05:17,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-21 11:05:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:05:19,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 3325 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 11:05:19,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:05:20,170 INFO L134 CoverageAnalysis]: Checked inductivity of 1777 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 1615 trivial. 0 not checked. [2022-07-21 11:05:20,170 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:05:20,170 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:05:20,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1339952323] [2022-07-21 11:05:20,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1339952323] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:05:20,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:05:20,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:05:20,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922675624] [2022-07-21 11:05:20,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:05:20,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:05:20,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:05:20,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:05:20,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:05:20,173 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) [2022-07-21 11:05:22,535 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 [] [2022-07-21 11:05:23,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:05:23,605 INFO L93 Difference]: Finished difference Result 52515 states and 75221 transitions. [2022-07-21 11:05:23,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 11:05:23,606 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 [2022-07-21 11:05:23,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:05:23,746 INFO L225 Difference]: With dead ends: 52515 [2022-07-21 11:05:23,747 INFO L226 Difference]: Without dead ends: 28709 [2022-07-21 11:05:23,831 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 [2022-07-21 11:05:23,834 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, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-21 11:05:23,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1369 Valid, 14147 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 33 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-07-21 11:05:23,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28709 states. [2022-07-21 11:05:25,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28709 to 23897. [2022-07-21 11:05:25,085 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) [2022-07-21 11:05:25,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23897 states to 23897 states and 33910 transitions. [2022-07-21 11:05:25,184 INFO L78 Accepts]: Start accepts. Automaton has 23897 states and 33910 transitions. Word has length 709 [2022-07-21 11:05:25,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:05:25,186 INFO L495 AbstractCegarLoop]: Abstraction has 23897 states and 33910 transitions. [2022-07-21 11:05:25,186 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) [2022-07-21 11:05:25,187 INFO L276 IsEmpty]: Start isEmpty. Operand 23897 states and 33910 transitions. [2022-07-21 11:05:25,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 730 [2022-07-21 11:05:25,247 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:05:25,248 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] [2022-07-21 11:05:25,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-21 11:05:25,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:05:25,476 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:05:25,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:05:25,476 INFO L85 PathProgramCache]: Analyzing trace with hash -2113028057, now seen corresponding path program 1 times [2022-07-21 11:05:25,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:05:25,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1632785266] [2022-07-21 11:05:25,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:05:25,479 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:05:25,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:05:25,481 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) [2022-07-21 11:05:25,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-21 11:05:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:05:27,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 3370 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-21 11:05:27,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:05:28,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1781 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 1621 trivial. 0 not checked. [2022-07-21 11:05:28,191 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:05:28,191 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:05:28,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1632785266] [2022-07-21 11:05:28,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1632785266] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:05:28,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:05:28,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 11:05:28,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463286106] [2022-07-21 11:05:28,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:05:28,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 11:05:28,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:05:28,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 11:05:28,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 11:05:28,194 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) [2022-07-21 11:05:30,473 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 [] [2022-07-21 11:05:31,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:05:31,549 INFO L93 Difference]: Finished difference Result 49559 states and 70551 transitions. [2022-07-21 11:05:31,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 11:05:31,550 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 [2022-07-21 11:05:31,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:05:31,797 INFO L225 Difference]: With dead ends: 49559 [2022-07-21 11:05:31,797 INFO L226 Difference]: Without dead ends: 25713 [2022-07-21 11:05:31,851 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 [2022-07-21 11:05:31,852 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 [2022-07-21 11:05:31,852 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] [2022-07-21 11:05:31,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25713 states. [2022-07-21 11:05:32,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25713 to 23913. [2022-07-21 11:05:32,765 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) [2022-07-21 11:05:32,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23913 states to 23913 states and 33926 transitions. [2022-07-21 11:05:32,872 INFO L78 Accepts]: Start accepts. Automaton has 23913 states and 33926 transitions. Word has length 729 [2022-07-21 11:05:32,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:05:32,873 INFO L495 AbstractCegarLoop]: Abstraction has 23913 states and 33926 transitions. [2022-07-21 11:05:32,873 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) [2022-07-21 11:05:32,873 INFO L276 IsEmpty]: Start isEmpty. Operand 23913 states and 33926 transitions. [2022-07-21 11:05:32,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 750 [2022-07-21 11:05:32,925 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:05:32,926 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] [2022-07-21 11:05:33,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-21 11:05:33,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:05:33,148 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:05:33,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:05:33,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1145833885, now seen corresponding path program 1 times [2022-07-21 11:05:33,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:05:33,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [976035337] [2022-07-21 11:05:33,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:05:33,152 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:05:33,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:05:33,154 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) [2022-07-21 11:05:33,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-21 11:05:35,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:05:35,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 3413 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-21 11:05:35,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:05:36,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 320 proven. 6 refuted. 0 times theorem prover too weak. 1487 trivial. 0 not checked. [2022-07-21 11:05:36,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:05:37,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 43 proven. 10 refuted. 0 times theorem prover too weak. 1760 trivial. 0 not checked. [2022-07-21 11:05:37,531 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:05:37,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [976035337] [2022-07-21 11:05:37,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [976035337] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:05:37,532 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:05:37,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-07-21 11:05:37,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157134390] [2022-07-21 11:05:37,532 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:05:37,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 11:05:37,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:05:37,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 11:05:37,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-07-21 11:05:37,643 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) [2022-07-21 11:05:41,825 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 [] [2022-07-21 11:05:51,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:05:51,907 INFO L93 Difference]: Finished difference Result 67242 states and 96968 transitions. [2022-07-21 11:05:51,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-21 11:05:51,908 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 [2022-07-21 11:05:51,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:05:52,040 INFO L225 Difference]: With dead ends: 67242 [2022-07-21 11:05:52,040 INFO L226 Difference]: Without dead ends: 43380 [2022-07-21 11:05:52,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1522 GetRequests, 1493 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=215, Invalid=715, Unknown=0, NotChecked=0, Total=930 [2022-07-21 11:05:52,093 INFO L413 NwaCegarLoop]: 4680 mSDtfsCounter, 5678 mSDsluCounter, 32166 mSDsCounter, 0 mSdLazyCounter, 1947 mSolverCounterSat, 1797 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s 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, 11.7s IncrementalHoareTripleChecker+Time [2022-07-21 11:05:52,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5909 Valid, 36846 Invalid, 3745 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1797 Valid, 1947 Invalid, 1 Unknown, 0 Unchecked, 11.7s Time] [2022-07-21 11:05:52,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43380 states. [2022-07-21 11:05:53,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43380 to 31362. [2022-07-21 11:05:53,343 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) [2022-07-21 11:05:53,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31362 states to 31362 states and 44449 transitions. [2022-07-21 11:05:53,673 INFO L78 Accepts]: Start accepts. Automaton has 31362 states and 44449 transitions. Word has length 749 [2022-07-21 11:05:53,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:05:53,677 INFO L495 AbstractCegarLoop]: Abstraction has 31362 states and 44449 transitions. [2022-07-21 11:05:53,677 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) [2022-07-21 11:05:53,677 INFO L276 IsEmpty]: Start isEmpty. Operand 31362 states and 44449 transitions. [2022-07-21 11:05:53,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 750 [2022-07-21 11:05:53,739 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:05:53,740 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] [2022-07-21 11:05:53,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-21 11:05:53,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:05:53,956 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:05:53,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:05:53,957 INFO L85 PathProgramCache]: Analyzing trace with hash -235595233, now seen corresponding path program 1 times [2022-07-21 11:05:53,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:05:53,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [302784490] [2022-07-21 11:05:53,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:05:53,960 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:05:53,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:05:53,961 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) [2022-07-21 11:05:53,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-21 11:05:56,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:05:56,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 3413 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 11:05:56,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:05:56,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 1622 trivial. 0 not checked. [2022-07-21 11:05:56,462 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:05:56,462 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:05:56,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [302784490] [2022-07-21 11:05:56,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [302784490] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:05:56,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:05:56,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 11:05:56,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371813517] [2022-07-21 11:05:56,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:05:56,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 11:05:56,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:05:56,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 11:05:56,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 11:05:56,465 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) [2022-07-21 11:05:57,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:05:57,429 INFO L93 Difference]: Finished difference Result 62502 states and 88596 transitions. [2022-07-21 11:05:57,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 11:05:57,430 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 [2022-07-21 11:05:57,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:05:57,663 INFO L225 Difference]: With dead ends: 62502 [2022-07-21 11:05:57,663 INFO L226 Difference]: Without dead ends: 31538 [2022-07-21 11:05:57,717 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 [2022-07-21 11:05:57,718 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 [2022-07-21 11:05:57,718 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] [2022-07-21 11:05:57,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31538 states. [2022-07-21 11:05:58,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31538 to 31394. [2022-07-21 11:05:58,654 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) [2022-07-21 11:05:58,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31394 states to 31394 states and 44481 transitions. [2022-07-21 11:05:58,857 INFO L78 Accepts]: Start accepts. Automaton has 31394 states and 44481 transitions. Word has length 749 [2022-07-21 11:05:58,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:05:58,858 INFO L495 AbstractCegarLoop]: Abstraction has 31394 states and 44481 transitions. [2022-07-21 11:05:58,858 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) [2022-07-21 11:05:58,858 INFO L276 IsEmpty]: Start isEmpty. Operand 31394 states and 44481 transitions. [2022-07-21 11:05:58,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 750 [2022-07-21 11:05:58,922 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:05:58,922 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] [2022-07-21 11:05:58,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-21 11:05:59,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:05:59,126 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:05:59,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:05:59,127 INFO L85 PathProgramCache]: Analyzing trace with hash -2052465123, now seen corresponding path program 1 times [2022-07-21 11:05:59,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:05:59,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1193906090] [2022-07-21 11:05:59,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:05:59,129 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:05:59,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:05:59,130 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) [2022-07-21 11:05:59,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-21 11:06:01,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:06:01,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 3415 conjuncts, 25 conjunts are in the unsatisfiable core [2022-07-21 11:06:01,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:06:02,011 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 341 proven. 6 refuted. 0 times theorem prover too weak. 1466 trivial. 0 not checked. [2022-07-21 11:06:02,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:06:02,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 1794 trivial. 0 not checked. [2022-07-21 11:06:02,682 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:06:02,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1193906090] [2022-07-21 11:06:02,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1193906090] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 11:06:02,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 11:06:02,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-07-21 11:06:02,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697776171] [2022-07-21 11:06:02,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:06:02,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:06:02,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:06:02,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:06:02,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 11:06:02,686 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) [2022-07-21 11:06:05,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:06:05,128 INFO L93 Difference]: Finished difference Result 64400 states and 91492 transitions. [2022-07-21 11:06:05,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:06:05,130 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 [2022-07-21 11:06:05,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:06:05,255 INFO L225 Difference]: With dead ends: 64400 [2022-07-21 11:06:05,256 INFO L226 Difference]: Without dead ends: 33404 [2022-07-21 11:06:05,320 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 [2022-07-21 11:06:05,321 INFO L413 NwaCegarLoop]: 2621 mSDtfsCounter, 558 mSDsluCounter, 7197 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 11:06:05,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 9818 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 11:06:05,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33404 states. [2022-07-21 11:06:06,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33404 to 31418. [2022-07-21 11:06:06,419 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) [2022-07-21 11:06:06,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31418 states to 31418 states and 44505 transitions. [2022-07-21 11:06:06,516 INFO L78 Accepts]: Start accepts. Automaton has 31418 states and 44505 transitions. Word has length 749 [2022-07-21 11:06:06,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:06:06,516 INFO L495 AbstractCegarLoop]: Abstraction has 31418 states and 44505 transitions. [2022-07-21 11:06:06,517 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) [2022-07-21 11:06:06,517 INFO L276 IsEmpty]: Start isEmpty. Operand 31418 states and 44505 transitions. [2022-07-21 11:06:06,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2022-07-21 11:06:06,563 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:06:06,563 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] [2022-07-21 11:06:06,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-21 11:06:06,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:06:06,772 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:06:06,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:06:06,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1273217471, now seen corresponding path program 1 times [2022-07-21 11:06:06,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:06:06,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627164409] [2022-07-21 11:06:06,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:06:06,775 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:06:06,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:06:06,776 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) [2022-07-21 11:06:06,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-21 11:06:08,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:06:09,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 3475 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 11:06:09,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:06:09,597 INFO L356 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2022-07-21 11:06:09,597 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 [2022-07-21 11:06:13,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 1570 trivial. 0 not checked. [2022-07-21 11:06:13,919 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:06:13,919 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:06:13,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1627164409] [2022-07-21 11:06:13,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1627164409] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:06:13,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:06:13,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:06:13,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837041896] [2022-07-21 11:06:13,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:06:13,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:06:13,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:06:13,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:06:13,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=18, Unknown=2, NotChecked=0, Total=30 [2022-07-21 11:06:13,922 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) [2022-07-21 11:06:17,013 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:06:19,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:06:22,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:06:23,778 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:06:30,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:06:35,507 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:06:37,510 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:06:39,515 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:06:48,700 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:06:50,710 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:06:52,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:06:55,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:06:57,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:07:00,079 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:07:02,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:07:04,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:07:05,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:07:07,649 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:07:09,660 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:07:11,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:07:13,808 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:07:15,722 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:07:19,091 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:07:21,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:07:23,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:07:25,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:07:25,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:07:25,749 INFO L93 Difference]: Finished difference Result 65816 states and 93198 transitions. [2022-07-21 11:07:25,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 11:07:25,751 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 [2022-07-21 11:07:25,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:07:25,863 INFO L225 Difference]: With dead ends: 65816 [2022-07-21 11:07:25,863 INFO L226 Difference]: Without dead ends: 34796 [2022-07-21 11:07:25,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 759 GetRequests, 753 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=15, Invalid=25, Unknown=2, NotChecked=0, Total=42 [2022-07-21 11:07:25,926 INFO L413 NwaCegarLoop]: 2730 mSDtfsCounter, 623 mSDsluCounter, 9262 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 1 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 11992 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 961 IncrementalHoareTripleChecker+Unchecked, 68.4s IncrementalHoareTripleChecker+Time [2022-07-21 11:07:25,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 11992 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 496 Invalid, 19 Unknown, 961 Unchecked, 68.4s Time] [2022-07-21 11:07:25,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34796 states. [2022-07-21 11:07:27,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34796 to 34356. [2022-07-21 11:07:27,187 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) [2022-07-21 11:07:27,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34356 states to 34356 states and 48580 transitions. [2022-07-21 11:07:27,314 INFO L78 Accepts]: Start accepts. Automaton has 34356 states and 48580 transitions. Word has length 759 [2022-07-21 11:07:27,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:07:27,315 INFO L495 AbstractCegarLoop]: Abstraction has 34356 states and 48580 transitions. [2022-07-21 11:07:27,315 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) [2022-07-21 11:07:27,315 INFO L276 IsEmpty]: Start isEmpty. Operand 34356 states and 48580 transitions. [2022-07-21 11:07:27,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2022-07-21 11:07:27,368 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:07:27,368 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] [2022-07-21 11:07:27,458 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-07-21 11:07:27,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:07:27,569 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:07:27,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:07:27,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1458326017, now seen corresponding path program 1 times [2022-07-21 11:07:27,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:07:27,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1811383548] [2022-07-21 11:07:27,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:07:27,572 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:07:27,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:07:27,574 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) [2022-07-21 11:07:27,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-21 11:07:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:07:30,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 3475 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 11:07:30,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:07:30,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 460 proven. 0 refuted. 0 times theorem prover too weak. 1353 trivial. 0 not checked. [2022-07-21 11:07:30,429 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:07:30,429 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:07:30,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1811383548] [2022-07-21 11:07:30,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1811383548] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:07:30,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:07:30,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:07:30,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666981760] [2022-07-21 11:07:30,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:07:30,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:07:30,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:07:30,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:07:30,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:07:30,432 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) [2022-07-21 11:07:32,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:07:32,324 INFO L93 Difference]: Finished difference Result 81178 states and 116741 transitions. [2022-07-21 11:07:32,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 11:07:32,326 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 [2022-07-21 11:07:32,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:07:32,458 INFO L225 Difference]: With dead ends: 81178 [2022-07-21 11:07:32,458 INFO L226 Difference]: Without dead ends: 47220 [2022-07-21 11:07:32,528 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 [2022-07-21 11:07:32,529 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 [2022-07-21 11:07:32,529 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] [2022-07-21 11:07:32,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47220 states.