./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-cisco-enic-enic.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 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-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-cisco-enic-enic.cil.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 4c7dacdb83136a121d00fa327d1c2830046f2fd343e670a23a7fced247adecf0 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-03 00:02:45,959 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 00:02:45,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 00:02:45,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 00:02:45,999 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 00:02:46,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 00:02:46,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 00:02:46,006 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 00:02:46,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 00:02:46,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 00:02:46,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 00:02:46,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 00:02:46,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 00:02:46,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 00:02:46,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 00:02:46,019 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 00:02:46,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 00:02:46,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 00:02:46,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 00:02:46,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 00:02:46,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 00:02:46,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 00:02:46,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 00:02:46,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 00:02:46,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 00:02:46,038 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 00:02:46,038 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 00:02:46,040 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 00:02:46,040 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 00:02:46,041 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 00:02:46,041 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 00:02:46,042 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 00:02:46,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 00:02:46,045 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 00:02:46,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 00:02:46,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 00:02:46,047 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 00:02:46,047 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 00:02:46,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 00:02:46,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 00:02:46,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 00:02:46,051 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-03 00:02:46,082 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 00:02:46,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 00:02:46,083 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-03 00:02:46,083 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-03 00:02:46,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 00:02:46,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 00:02:46,085 INFO L138 SettingsManager]: * Use SBE=true [2021-11-03 00:02:46,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 00:02:46,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 00:02:46,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 00:02:46,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 00:02:46,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 00:02:46,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 00:02:46,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 00:02:46,087 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 00:02:46,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 00:02:46,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 00:02:46,088 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 00:02:46,088 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 00:02:46,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 00:02:46,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 00:02:46,088 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 00:02:46,089 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 00:02:46,089 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-03 00:02:46,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 00:02:46,089 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-03 00:02:46,089 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-03 00:02:46,090 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 00:02:46,090 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 00:02:46,090 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c7dacdb83136a121d00fa327d1c2830046f2fd343e670a23a7fced247adecf0 [2021-11-03 00:02:46,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 00:02:46,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 00:02:46,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 00:02:46,354 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 00:02:46,355 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 00:02:46,356 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-cisco-enic-enic.cil.i [2021-11-03 00:02:46,426 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83de29756/1e26550c4ce3452cb559f8d05f153b45/FLAGb42aa9481 [2021-11-03 00:02:47,218 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 00:02:47,219 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-cisco-enic-enic.cil.i [2021-11-03 00:02:47,296 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83de29756/1e26550c4ce3452cb559f8d05f153b45/FLAGb42aa9481 [2021-11-03 00:02:47,442 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83de29756/1e26550c4ce3452cb559f8d05f153b45 [2021-11-03 00:02:47,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 00:02:47,445 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 00:02:47,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 00:02:47,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 00:02:47,450 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 00:02:47,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:02:47" (1/1) ... [2021-11-03 00:02:47,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ea6b618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:02:47, skipping insertion in model container [2021-11-03 00:02:47,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:02:47" (1/1) ... [2021-11-03 00:02:47,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 00:02:47,684 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 00:02:51,883 WARN L228 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-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-cisco-enic-enic.cil.i[525646,525659] [2021-11-03 00:02:51,886 WARN L228 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-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-cisco-enic-enic.cil.i[525812,525825] [2021-11-03 00:02:51,887 WARN L228 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-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-cisco-enic-enic.cil.i[525976,525989] [2021-11-03 00:02:51,887 WARN L228 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-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-cisco-enic-enic.cil.i[526141,526154] [2021-11-03 00:02:51,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 00:02:52,014 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 00:02:52,587 WARN L228 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-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-cisco-enic-enic.cil.i[525646,525659] [2021-11-03 00:02:52,589 WARN L228 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-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-cisco-enic-enic.cil.i[525812,525825] [2021-11-03 00:02:52,589 WARN L228 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-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-cisco-enic-enic.cil.i[525976,525989] [2021-11-03 00:02:52,589 WARN L228 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-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-cisco-enic-enic.cil.i[526141,526154] [2021-11-03 00:02:52,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 00:02:52,899 INFO L208 MainTranslator]: Completed translation [2021-11-03 00:02:52,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:02:52 WrapperNode [2021-11-03 00:02:52,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 00:02:52,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 00:02:52,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 00:02:52,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 00:02:52,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:02:52" (1/1) ... [2021-11-03 00:02:53,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:02:52" (1/1) ... [2021-11-03 00:02:56,282 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 00:02:56,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 00:02:56,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 00:02:56,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 00:02:56,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:02:52" (1/1) ... [2021-11-03 00:02:56,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:02:52" (1/1) ... [2021-11-03 00:02:57,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:02:52" (1/1) ... [2021-11-03 00:02:57,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:02:52" (1/1) ... [2021-11-03 00:02:58,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:02:52" (1/1) ... [2021-11-03 00:02:59,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:02:52" (1/1) ... [2021-11-03 00:02:59,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:02:52" (1/1) ... [2021-11-03 00:03:00,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 00:03:00,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 00:03:00,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 00:03:00,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 00:03:00,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:02:52" (1/1) ... [2021-11-03 00:03:00,232 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 00:03:00,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 00:03:00,256 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) [2021-11-03 00:03:00,282 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 [2021-11-03 00:03:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure enic_dev_open [2021-11-03 00:03:00,300 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_dev_open [2021-11-03 00:03:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-03 00:03:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure enic_probe [2021-11-03 00:03:00,301 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_probe [2021-11-03 00:03:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 00:03:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure enic_pp_preassociate_rr [2021-11-03 00:03:00,301 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_pp_preassociate_rr [2021-11-03 00:03:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-03 00:03:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-03 00:03:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 00:03:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-11-03 00:03:00,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-11-03 00:03:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 00:03:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 00:03:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-03 00:03:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-03 00:03:00,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-03 00:03:00,303 INFO L130 BoogieDeclarations]: Found specification of procedure enic_dev_wait [2021-11-03 00:03:00,303 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_dev_wait [2021-11-03 00:03:00,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 00:03:00,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 00:03:00,303 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_rq_fill [2021-11-03 00:03:00,303 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_rq_fill [2021-11-03 00:03:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 00:03:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 00:03:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-03 00:03:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 00:03:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 00:03:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 00:03:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure enic_open [2021-11-03 00:03:00,305 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_open [2021-11-03 00:03:00,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 00:03:00,305 INFO L130 BoogieDeclarations]: Found specification of procedure enic_pp_associate [2021-11-03 00:03:00,305 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_pp_associate [2021-11-03 00:03:00,305 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-03 00:03:00,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-03 00:03:00,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 00:15:39,920 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-03 00:15:39,920 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-03 00:15:39,921 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-03 00:15:39,921 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-03 00:15:39,925 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 00:15:39,926 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-03 00:15:40,255 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 00:15:40,256 INFO L299 CfgBuilder]: Removed 20450 assume(true) statements. [2021-11-03 00:15:40,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:15:40 BoogieIcfgContainer [2021-11-03 00:15:40,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 00:15:40,284 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 00:15:40,284 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 00:15:40,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 00:15:40,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:02:47" (1/3) ... [2021-11-03 00:15:40,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@769f886f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:15:40, skipping insertion in model container [2021-11-03 00:15:40,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:02:52" (2/3) ... [2021-11-03 00:15:40,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@769f886f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:15:40, skipping insertion in model container [2021-11-03 00:15:40,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:15:40" (3/3) ... [2021-11-03 00:15:40,293 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-cisco-enic-enic.cil.i [2021-11-03 00:15:40,298 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 00:15:40,298 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-03 00:15:40,405 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 00:15:40,411 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 [2021-11-03 00:15:40,411 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-03 00:15:40,905 INFO L276 IsEmpty]: Start isEmpty. Operand has 27233 states, 27192 states have (on average 1.4480729626360693) internal successors, (39376), 27197 states have internal predecessors, (39376), 25 states have call successors, (25), 10 states have call predecessors, (25), 10 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-03 00:15:40,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-03 00:15:40,913 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:15:40,913 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] [2021-11-03 00:15:40,914 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 00:15:40,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:15:40,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1392546468, now seen corresponding path program 1 times [2021-11-03 00:15:40,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:15:40,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628905422] [2021-11-03 00:15:40,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:15:40,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:15:41,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:15:42,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 00:15:42,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:15:42,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628905422] [2021-11-03 00:15:42,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628905422] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:15:42,099 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:15:42,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:15:42,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844554849] [2021-11-03 00:15:42,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:15:42,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:15:42,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:15:42,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:15:42,206 INFO L87 Difference]: Start difference. First operand has 27233 states, 27192 states have (on average 1.4480729626360693) internal successors, (39376), 27197 states have internal predecessors, (39376), 25 states have call successors, (25), 10 states have call predecessors, (25), 10 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 00:15:44,417 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:16:05,931 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15