./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.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 e8e67529e4f1862dffb4b20b34b9723f96164119a4ebff5a58d56eaf6134a8d1 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 04:33:27,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 04:33:27,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 04:33:27,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 04:33:27,700 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 04:33:27,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 04:33:27,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 04:33:27,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 04:33:27,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 04:33:27,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 04:33:27,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 04:33:27,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 04:33:27,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 04:33:27,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 04:33:27,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 04:33:27,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 04:33:27,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 04:33:27,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 04:33:27,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 04:33:27,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 04:33:27,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 04:33:27,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 04:33:27,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 04:33:27,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 04:33:27,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 04:33:27,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 04:33:27,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 04:33:27,741 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 04:33:27,741 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 04:33:27,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 04:33:27,742 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 04:33:27,743 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 04:33:27,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 04:33:27,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 04:33:27,747 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 04:33:27,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 04:33:27,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 04:33:27,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 04:33:27,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 04:33:27,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 04:33:27,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 04:33:27,750 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 04:33:27,784 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 04:33:27,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 04:33:27,785 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 04:33:27,786 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 04:33:27,786 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 04:33:27,787 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 04:33:27,787 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 04:33:27,787 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 04:33:27,788 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 04:33:27,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 04:33:27,788 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 04:33:27,789 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 04:33:27,789 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 04:33:27,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 04:33:27,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 04:33:27,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 04:33:27,790 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 04:33:27,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 04:33:27,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 04:33:27,790 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 04:33:27,790 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 04:33:27,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:33:27,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 04:33:27,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 04:33:27,791 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 04:33:27,791 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 04:33:27,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 04:33:27,791 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 04:33:27,792 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 04:33:27,792 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 04:33:27,792 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 04:33:27,792 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8e67529e4f1862dffb4b20b34b9723f96164119a4ebff5a58d56eaf6134a8d1 [2021-12-16 04:33:28,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 04:33:28,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 04:33:28,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 04:33:28,049 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 04:33:28,049 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 04:33:28,050 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2021-12-16 04:33:28,127 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/624187df5/2b7bd67bddab4286aafad7a7c9d81919/FLAG687e477fd [2021-12-16 04:33:28,786 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 04:33:28,786 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2021-12-16 04:33:28,820 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/624187df5/2b7bd67bddab4286aafad7a7c9d81919/FLAG687e477fd [2021-12-16 04:33:29,091 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/624187df5/2b7bd67bddab4286aafad7a7c9d81919 [2021-12-16 04:33:29,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 04:33:29,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 04:33:29,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 04:33:29,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 04:33:29,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 04:33:29,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:33:29" (1/1) ... [2021-12-16 04:33:29,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bf5bbe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:33:29, skipping insertion in model container [2021-12-16 04:33:29,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:33:29" (1/1) ... [2021-12-16 04:33:29,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 04:33:29,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 04:33:30,609 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[283284,283297] [2021-12-16 04:33:30,660 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:33:30,708 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 04:33:30,951 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[283284,283297] [2021-12-16 04:33:30,969 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:33:31,041 INFO L208 MainTranslator]: Completed translation [2021-12-16 04:33:31,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:33:31 WrapperNode [2021-12-16 04:33:31,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 04:33:31,042 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 04:33:31,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 04:33:31,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 04:33:31,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:33:31" (1/1) ... [2021-12-16 04:33:31,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:33:31" (1/1) ... [2021-12-16 04:33:31,241 INFO L137 Inliner]: procedures = 215, calls = 1656, calls flagged for inlining = 108, calls inlined = 105, statements flattened = 3102 [2021-12-16 04:33:31,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 04:33:31,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 04:33:31,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 04:33:31,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 04:33:31,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:33:31" (1/1) ... [2021-12-16 04:33:31,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:33:31" (1/1) ... [2021-12-16 04:33:31,263 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:33:31" (1/1) ... [2021-12-16 04:33:31,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:33:31" (1/1) ... [2021-12-16 04:33:31,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:33:31" (1/1) ... [2021-12-16 04:33:31,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:33:31" (1/1) ... [2021-12-16 04:33:31,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:33:31" (1/1) ... [2021-12-16 04:33:31,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 04:33:31,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 04:33:31,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 04:33:31,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 04:33:31,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:33:31" (1/1) ... [2021-12-16 04:33:31,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:33:31,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:33:31,470 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-16 04:33:31,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-16 04:33:31,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-16 04:33:31,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-16 04:33:31,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-16 04:33:31,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-16 04:33:31,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-16 04:33:31,509 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-16 04:33:31,509 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-16 04:33:31,509 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-16 04:33:31,510 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-16 04:33:31,510 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-16 04:33:31,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-16 04:33:31,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-16 04:33:31,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 04:33:31,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 04:33:31,510 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-16 04:33:31,510 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-16 04:33:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-16 04:33:31,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-16 04:33:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-16 04:33:31,511 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-16 04:33:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-16 04:33:31,511 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-16 04:33:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-16 04:33:31,511 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-16 04:33:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-16 04:33:31,512 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-16 04:33:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-16 04:33:31,512 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-16 04:33:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-16 04:33:31,512 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-16 04:33:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 04:33:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_read_long [2021-12-16 04:33:31,513 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_read_long [2021-12-16 04:33:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 04:33:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-16 04:33:31,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-16 04:33:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-16 04:33:31,514 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-16 04:33:31,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 04:33:31,514 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-16 04:33:31,514 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-16 04:33:31,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 04:33:31,514 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_adap_init [2021-12-16 04:33:31,514 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_adap_init [2021-12-16 04:33:31,515 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-12-16 04:33:31,515 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-12-16 04:33:31,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2021-12-16 04:33:31,515 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2021-12-16 04:33:31,515 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_int_common [2021-12-16 04:33:31,515 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_int_common [2021-12-16 04:33:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-16 04:33:31,516 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-16 04:33:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-16 04:33:31,516 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-16 04:33:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-16 04:33:31,516 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-16 04:33:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_rcv_flush [2021-12-16 04:33:31,518 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_rcv_flush [2021-12-16 04:33:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_get_stats [2021-12-16 04:33:31,518 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_get_stats [2021-12-16 04:33:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-16 04:33:31,518 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-16 04:33:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_cam [2021-12-16 04:33:31,519 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_cam [2021-12-16 04:33:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-16 04:33:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_cmd_req [2021-12-16 04:33:31,519 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_cmd_req [2021-12-16 04:33:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_uninit [2021-12-16 04:33:31,519 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_uninit [2021-12-16 04:33:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-16 04:33:31,520 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-16 04:33:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-16 04:33:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-16 04:33:31,521 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-16 04:33:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_cpu [2021-12-16 04:33:31,521 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_cpu [2021-12-16 04:33:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-16 04:33:31,521 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-16 04:33:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 04:33:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure my_skb_align [2021-12-16 04:33:31,522 INFO L138 BoogieDeclarations]: Found implementation of procedure my_skb_align [2021-12-16 04:33:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-16 04:33:31,522 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-16 04:33:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-16 04:33:31,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-16 04:33:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-16 04:33:31,522 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-16 04:33:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_write_long [2021-12-16 04:33:31,523 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_write_long [2021-12-16 04:33:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-16 04:33:31,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-16 04:33:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-16 04:33:31,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-16 04:33:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 04:33:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-16 04:33:31,525 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-16 04:33:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-12-16 04:33:31,525 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-12-16 04:33:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-12-16 04:33:31,525 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-12-16 04:33:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 04:33:31,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 04:33:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-16 04:33:31,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-16 04:33:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 04:33:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-16 04:33:31,527 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-16 04:33:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_port_ctrl_req [2021-12-16 04:33:31,527 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_port_ctrl_req [2021-12-16 04:33:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 04:33:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_xmt_flush [2021-12-16 04:33:31,527 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_xmt_flush [2021-12-16 04:33:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-16 04:33:31,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-16 04:33:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 04:33:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_filters [2021-12-16 04:33:31,528 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_filters [2021-12-16 04:33:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-16 04:33:31,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-16 04:33:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_mac_address [2021-12-16 04:33:31,531 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_mac_address [2021-12-16 04:33:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_multicast_list [2021-12-16 04:33:31,531 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_multicast_list [2021-12-16 04:33:31,532 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_adap_state_rd [2021-12-16 04:33:31,532 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_adap_state_rd [2021-12-16 04:33:31,532 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-16 04:33:31,533 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-16 04:33:31,533 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-16 04:33:31,537 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-16 04:33:31,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 04:33:31,537 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_get_bars [2021-12-16 04:33:31,537 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_get_bars [2021-12-16 04:33:31,537 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-12-16 04:33:31,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-12-16 04:33:31,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 04:33:31,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 04:33:32,115 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 04:33:32,118 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 04:33:32,601 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-16 04:33:42,523 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 04:33:42,532 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 04:33:42,532 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 04:33:42,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:33:42 BoogieIcfgContainer [2021-12-16 04:33:42,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 04:33:42,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 04:33:42,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 04:33:42,538 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 04:33:42,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:33:29" (1/3) ... [2021-12-16 04:33:42,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a603318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:33:42, skipping insertion in model container [2021-12-16 04:33:42,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:33:31" (2/3) ... [2021-12-16 04:33:42,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a603318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:33:42, skipping insertion in model container [2021-12-16 04:33:42,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:33:42" (3/3) ... [2021-12-16 04:33:42,540 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2021-12-16 04:33:42,543 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 04:33:42,544 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 04:33:42,578 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 04:33:42,582 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 04:33:42,582 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 04:33:42,639 INFO L276 IsEmpty]: Start isEmpty. Operand has 1115 states, 780 states have (on average 1.3205128205128205) internal successors, (1030), 801 states have internal predecessors, (1030), 274 states have call successors, (274), 60 states have call predecessors, (274), 59 states have return successors, (268), 268 states have call predecessors, (268), 268 states have call successors, (268) [2021-12-16 04:33:42,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-12-16 04:33:42,660 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:33:42,661 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:33:42,661 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:33:42,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:33:42,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1612545232, now seen corresponding path program 1 times [2021-12-16 04:33:42,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:33:42,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489328610] [2021-12-16 04:33:42,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:33:42,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:33:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:33:43,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:33:43,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:33:43,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:33:43,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:33:43,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:33:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:33:43,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:33:43,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:33:43,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:33:43,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:33:43,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:33:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:33:43,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:33:43,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:33:43,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:33:43,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:33:43,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:33:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:33:43,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 04:33:43,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:33:43,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 04:33:43,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:33:43,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 04:33:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:33:43,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:33:43,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:33:43,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 04:33:43,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:33:43,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 04:33:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:33:43,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 04:33:43,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:33:43,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:33:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:33:43,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:33:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:33:43,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-16 04:33:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:33:43,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:33:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:33:43,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-16 04:33:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:33:43,492 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-16 04:33:43,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:33:43,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489328610] [2021-12-16 04:33:43,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489328610] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:33:43,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:33:43,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-16 04:33:43,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624954595] [2021-12-16 04:33:43,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:33:43,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 04:33:43,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:33:43,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 04:33:43,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-16 04:33:43,528 INFO L87 Difference]: Start difference. First operand has 1115 states, 780 states have (on average 1.3205128205128205) internal successors, (1030), 801 states have internal predecessors, (1030), 274 states have call successors, (274), 60 states have call predecessors, (274), 59 states have return successors, (268), 268 states have call predecessors, (268), 268 states have call successors, (268) Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (22), 7 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-16 04:33:46,133 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:33:50,756 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:33:54,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:33:56,804 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:33:58,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:34:00,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:34:03,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:34:05,052 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:34:07,066 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:34:12,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:34:15,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:34:17,468 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:34:21,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:34:23,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:34:25,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:34:27,442 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:34:29,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:34:31,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:34:33,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:34:35,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:34:38,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:34:38,856 INFO L93 Difference]: Finished difference Result 3602 states and 5282 transitions. [2021-12-16 04:34:38,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-16 04:34:38,860 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (22), 7 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 153 [2021-12-16 04:34:38,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:34:38,887 INFO L225 Difference]: With dead ends: 3602 [2021-12-16 04:34:38,887 INFO L226 Difference]: Without dead ends: 2450 [2021-12-16 04:34:38,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-16 04:34:38,900 INFO L933 BasicCegarLoop]: 1646 mSDtfsCounter, 3922 mSDsluCounter, 4015 mSDsCounter, 0 mSdLazyCounter, 4456 mSolverCounterSat, 3324 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4191 SdHoareTripleChecker+Valid, 5661 SdHoareTripleChecker+Invalid, 7797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3324 IncrementalHoareTripleChecker+Valid, 4456 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.7s IncrementalHoareTripleChecker+Time [2021-12-16 04:34:38,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4191 Valid, 5661 Invalid, 7797 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3324 Valid, 4456 Invalid, 17 Unknown, 0 Unchecked, 54.7s Time] [2021-12-16 04:34:38,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2450 states. [2021-12-16 04:34:39,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2450 to 2177. [2021-12-16 04:34:39,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2177 states, 1527 states have (on average 1.3077930582842174) internal successors, (1997), 1553 states have internal predecessors, (1997), 532 states have call successors, (532), 118 states have call predecessors, (532), 117 states have return successors, (533), 531 states have call predecessors, (533), 531 states have call successors, (533) [2021-12-16 04:34:39,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2177 states to 2177 states and 3062 transitions. [2021-12-16 04:34:39,090 INFO L78 Accepts]: Start accepts. Automaton has 2177 states and 3062 transitions. Word has length 153 [2021-12-16 04:34:39,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:34:39,091 INFO L470 AbstractCegarLoop]: Abstraction has 2177 states and 3062 transitions. [2021-12-16 04:34:39,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (22), 7 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-16 04:34:39,091 INFO L276 IsEmpty]: Start isEmpty. Operand 2177 states and 3062 transitions. [2021-12-16 04:34:39,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-12-16 04:34:39,103 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:34:39,103 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:34:39,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 04:34:39,104 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:34:39,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:34:39,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1282953709, now seen corresponding path program 1 times [2021-12-16 04:34:39,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:34:39,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731320100] [2021-12-16 04:34:39,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:34:39,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:34:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:34:39,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:34:39,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:34:39,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:34:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:34:39,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:34:39,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:34:39,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:34:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:34:39,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:34:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:34:39,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:34:39,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:34:39,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:34:39,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:34:39,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:34:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:34:39,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:34:39,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:34:39,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-16 04:34:39,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:34:39,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-16 04:34:39,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:34:39,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-16 04:34:39,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:34:39,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:34:39,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:34:39,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-16 04:34:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:34:39,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-16 04:34:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:34:39,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-16 04:34:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:34:39,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:34:39,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:34:39,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:34:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:34:39,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-16 04:34:39,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:34:39,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:34:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:34:39,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-16 04:34:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:34:39,489 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-16 04:34:39,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:34:39,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731320100] [2021-12-16 04:34:39,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731320100] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:34:39,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:34:39,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-16 04:34:39,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667826674] [2021-12-16 04:34:39,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:34:39,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 04:34:39,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:34:39,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 04:34:39,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-16 04:34:39,492 INFO L87 Difference]: Start difference. First operand 2177 states and 3062 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (22), 7 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17)