./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--cisco--enic--enic.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 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-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--cisco--enic--enic.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 ef9feac5783defbec1c68aa73b872148d61ba505a4b616ef820c491686f1e5d0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-22 23:36:54,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:36:54,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:36:54,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:36:54,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:36:54,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:36:54,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:36:54,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:36:54,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:36:54,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:36:54,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:36:54,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:36:54,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:36:54,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:36:54,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:36:54,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:36:54,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:36:54,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:36:54,760 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:36:54,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:36:54,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:36:54,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:36:54,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:36:54,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:36:54,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:36:54,774 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:36:54,774 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:36:54,776 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:36:54,776 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:36:54,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:36:54,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:36:54,778 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:36:54,779 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:36:54,780 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:36:54,781 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:36:54,781 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:36:54,782 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:36:54,782 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:36:54,782 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:36:54,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:36:54,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:36:54,784 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 23:36:54,814 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:36:54,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:36:54,815 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 23:36:54,815 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 23:36:54,816 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:36:54,816 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:36:54,816 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 23:36:54,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:36:54,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:36:54,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:36:54,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:36:54,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:36:54,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:36:54,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:36:54,819 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:36:54,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:36:54,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:36:54,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 23:36:54,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 23:36:54,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 23:36:54,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:36:54,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:36:54,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:36:54,820 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 23:36:54,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:36:54,820 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 23:36:54,821 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 23:36:54,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:36:54,821 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 23:36:54,821 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef9feac5783defbec1c68aa73b872148d61ba505a4b616ef820c491686f1e5d0 [2021-11-22 23:36:55,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:36:55,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:36:55,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:36:55,034 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:36:55,035 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:36:55,036 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--cisco--enic--enic.ko-entry_point.cil.out.i [2021-11-22 23:36:55,078 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32f10cffe/1f2fda84438e4afeaa4cf04932b3b7a8/FLAG3d2d35ac2 [2021-11-22 23:36:55,760 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:36:55,762 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--cisco--enic--enic.ko-entry_point.cil.out.i [2021-11-22 23:36:55,810 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32f10cffe/1f2fda84438e4afeaa4cf04932b3b7a8/FLAG3d2d35ac2 [2021-11-22 23:36:55,871 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32f10cffe/1f2fda84438e4afeaa4cf04932b3b7a8 [2021-11-22 23:36:55,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:36:55,874 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:36:55,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:36:55,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:36:55,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:36:55,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:36:55" (1/1) ... [2021-11-22 23:36:55,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c77ebaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:36:55, skipping insertion in model container [2021-11-22 23:36:55,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:36:55" (1/1) ... [2021-11-22 23:36:55,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:36:56,009 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:36:56,633 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6552] [2021-11-22 23:36:56,634 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6553-6554] [2021-11-22 23:36:57,105 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-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--cisco--enic--enic.ko-entry_point.cil.out.i[197897,197910] [2021-11-22 23:37:00,504 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-22 23:37:00,517 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:37:00,567 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:37:00,678 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6552] [2021-11-22 23:37:00,678 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6553-6554] [2021-11-22 23:37:00,687 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-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--cisco--enic--enic.ko-entry_point.cil.out.i[197897,197910] [2021-11-22 23:37:01,105 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-22 23:37:01,110 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:37:01,336 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:37:01,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:01 WrapperNode [2021-11-22 23:37:01,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:37:01,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:37:01,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:37:01,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:37:01,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:01" (1/1) ... [2021-11-22 23:37:01,467 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:01" (1/1) ... [2021-11-22 23:37:04,871 INFO L137 Inliner]: procedures = 653, calls = 5094, calls flagged for inlining = 1477, calls inlined = 14636, statements flattened = 212149 [2021-11-22 23:37:04,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:37:04,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:37:04,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:37:04,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:37:04,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:01" (1/1) ... [2021-11-22 23:37:04,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:01" (1/1) ... [2021-11-22 23:37:06,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:01" (1/1) ... [2021-11-22 23:37:06,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:01" (1/1) ... [2021-11-22 23:37:07,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:01" (1/1) ... [2021-11-22 23:37:08,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:01" (1/1) ... [2021-11-22 23:37:08,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:01" (1/1) ... [2021-11-22 23:37:09,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:37:09,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:37:09,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:37:09,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:37:09,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:01" (1/1) ... [2021-11-22 23:37:09,226 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 23:37:09,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 23:37:09,250 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) [2021-11-22 23:37:09,255 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 [2021-11-22 23:37:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure enic_dev_open [2021-11-22 23:37:09,274 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_dev_open [2021-11-22 23:37:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-22 23:37:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-22 23:37:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-22 23:37:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure enic_probe [2021-11-22 23:37:09,274 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_probe [2021-11-22 23:37:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 23:37:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure enic_pp_preassociate_rr [2021-11-22 23:37:09,275 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_pp_preassociate_rr [2021-11-22 23:37:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-22 23:37:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 23:37:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 23:37:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2021-11-22 23:37:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-11-22 23:37:09,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-11-22 23:37:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 23:37:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:37:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 23:37:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-22 23:37:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-22 23:37:09,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-22 23:37:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure enic_dev_wait [2021-11-22 23:37:09,276 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_dev_wait [2021-11-22 23:37:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:37:09,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:37:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_rq_fill [2021-11-22 23:37:09,277 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_rq_fill [2021-11-22 23:37:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-22 23:37:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 23:37:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-22 23:37:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 23:37:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 23:37:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 23:37:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure enic_open [2021-11-22 23:37:09,278 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_open [2021-11-22 23:37:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 23:37:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure enic_pp_associate [2021-11-22 23:37:09,278 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_pp_associate [2021-11-22 23:37:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-22 23:37:09,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-22 23:37:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:37:11,219 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:37:11,221 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:50:20,949 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:50:21,066 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:50:21,066 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 23:50:21,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:50:21 BoogieIcfgContainer [2021-11-22 23:50:21,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:50:21,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 23:50:21,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 23:50:21,099 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 23:50:21,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:36:55" (1/3) ... [2021-11-22 23:50:21,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f37d7e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:50:21, skipping insertion in model container [2021-11-22 23:50:21,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:01" (2/3) ... [2021-11-22 23:50:21,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f37d7e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:50:21, skipping insertion in model container [2021-11-22 23:50:21,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:50:21" (3/3) ... [2021-11-22 23:50:21,102 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--cisco--enic--enic.ko-entry_point.cil.out.i [2021-11-22 23:50:21,107 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 23:50:21,107 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-22 23:50:21,227 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 23:50:21,242 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 [2021-11-22 23:50:21,244 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-22 23:50:21,610 INFO L276 IsEmpty]: Start isEmpty. Operand has 40624 states, 40578 states have (on average 1.445364483217507) internal successors, (58650), 40584 states have internal predecessors, (58650), 29 states have call successors, (29), 10 states have call predecessors, (29), 10 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2021-11-22 23:50:21,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-22 23:50:21,647 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:50:21,648 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 23:50:21,649 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting enic_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, enic_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, enic_probeErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-22 23:50:21,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:50:21,653 INFO L85 PathProgramCache]: Analyzing trace with hash -537593475, now seen corresponding path program 1 times [2021-11-22 23:50:21,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:50:21,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244382619] [2021-11-22 23:50:21,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:50:21,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:50:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:50:23,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:50:23,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:50:23,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244382619] [2021-11-22 23:50:23,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244382619] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:50:23,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:50:23,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 23:50:23,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137174787] [2021-11-22 23:50:23,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:50:23,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:50:23,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:50:23,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:50:23,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:50:23,145 INFO L87 Difference]: Start difference. First operand has 40624 states, 40578 states have (on average 1.445364483217507) internal successors, (58650), 40584 states have internal predecessors, (58650), 29 states have call successors, (29), 10 states have call predecessors, (29), 10 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:50:25,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:50:25,312 INFO L93 Difference]: Finished difference Result 111519 states and 161271 transitions. [2021-11-22 23:50:25,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:50:25,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-22 23:50:25,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:50:25,598 INFO L225 Difference]: With dead ends: 111519 [2021-11-22 23:50:25,599 INFO L226 Difference]: Without dead ends: 70629 [2021-11-22 23:50:25,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:50:25,723 INFO L933 BasicCegarLoop]: 58674 mSDtfsCounter, 43883 mSDsluCounter, 58553 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43883 SdHoareTripleChecker+Valid, 117227 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 23:50:25,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43883 Valid, 117227 Invalid, 11 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 23:50:25,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70629 states. [2021-11-22 23:50:27,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70629 to 70625. [2021-11-22 23:50:27,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70625 states, 70554 states have (on average 1.4432491425007796) internal successors, (101827), 70559 states have internal predecessors, (101827), 49 states have call successors, (49), 16 states have call predecessors, (49), 16 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2021-11-22 23:50:27,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70625 states to 70625 states and 101925 transitions. [2021-11-22 23:50:27,583 INFO L78 Accepts]: Start accepts. Automaton has 70625 states and 101925 transitions. Word has length 76 [2021-11-22 23:50:27,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:50:27,584 INFO L470 AbstractCegarLoop]: Abstraction has 70625 states and 101925 transitions. [2021-11-22 23:50:27,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:50:27,586 INFO L276 IsEmpty]: Start isEmpty. Operand 70625 states and 101925 transitions. [2021-11-22 23:50:27,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-22 23:50:27,630 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:50:27,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 23:50:27,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 23:50:27,630 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, enic_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, enic_probeErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-22 23:50:27,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:50:27,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1696894936, now seen corresponding path program 1 times [2021-11-22 23:50:27,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:50:27,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460384740] [2021-11-22 23:50:27,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:50:27,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:50:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:50:28,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:50:28,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:50:28,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460384740] [2021-11-22 23:50:28,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460384740] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:50:28,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:50:28,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 23:50:28,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608825451] [2021-11-22 23:50:28,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:50:28,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:50:28,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:50:28,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:50:28,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:50:28,669 INFO L87 Difference]: Start difference. First operand 70625 states and 101925 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)