./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b 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_linux-kernel-locking-spinlock_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 73f101526b33e5f10b251e7a447b1a9d4ad6e1a0a49c040c0e548967272c8fbb --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 11:30:26,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 11:30:26,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 11:30:26,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 11:30:26,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 11:30:26,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 11:30:26,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 11:30:26,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 11:30:26,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 11:30:26,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 11:30:26,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 11:30:26,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 11:30:26,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 11:30:26,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 11:30:26,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 11:30:26,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 11:30:26,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 11:30:26,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 11:30:26,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 11:30:26,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 11:30:26,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 11:30:26,401 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 11:30:26,402 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 11:30:26,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 11:30:26,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 11:30:26,409 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 11:30:26,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 11:30:26,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 11:30:26,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 11:30:26,412 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 11:30:26,412 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 11:30:26,413 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 11:30:26,414 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 11:30:26,415 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 11:30:26,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 11:30:26,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 11:30:26,417 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 11:30:26,417 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 11:30:26,418 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 11:30:26,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 11:30:26,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 11:30:26,420 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 11:30:26,448 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 11:30:26,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 11:30:26,449 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 11:30:26,449 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 11:30:26,451 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 11:30:26,451 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 11:30:26,451 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 11:30:26,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 11:30:26,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 11:30:26,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 11:30:26,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 11:30:26,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 11:30:26,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 11:30:26,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 11:30:26,453 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 11:30:26,453 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 11:30:26,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 11:30:26,454 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 11:30:26,454 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 11:30:26,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 11:30:26,454 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 11:30:26,454 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 11:30:26,455 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 11:30:26,455 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 11:30:26,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 11:30:26,455 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 11:30:26,455 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 11:30:26,456 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 11:30:26,457 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 11:30:26,457 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73f101526b33e5f10b251e7a447b1a9d4ad6e1a0a49c040c0e548967272c8fbb [2021-11-04 11:30:26,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 11:30:26,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 11:30:26,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 11:30:26,674 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 11:30:26,675 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 11:30:26,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i [2021-11-04 11:30:26,731 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d637992c0/48be63e05f0d4772a66ce6ac14930dd4/FLAG69ff20d48 [2021-11-04 11:30:27,615 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 11:30:27,616 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i [2021-11-04 11:30:27,686 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d637992c0/48be63e05f0d4772a66ce6ac14930dd4/FLAG69ff20d48 [2021-11-04 11:30:27,732 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d637992c0/48be63e05f0d4772a66ce6ac14930dd4 [2021-11-04 11:30:27,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 11:30:27,735 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 11:30:27,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 11:30:27,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 11:30:27,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 11:30:27,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 11:30:27" (1/1) ... [2021-11-04 11:30:27,744 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8407acc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:30:27, skipping insertion in model container [2021-11-04 11:30:27,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 11:30:27" (1/1) ... [2021-11-04 11:30:27,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 11:30:27,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 11:30:32,509 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_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[564438,564451] [2021-11-04 11:30:32,512 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_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[564607,564620] [2021-11-04 11:30:32,512 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_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[564774,564787] [2021-11-04 11:30:32,512 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_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[564942,564955] [2021-11-04 11:30:32,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 11:30:32,586 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 11:30:33,107 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_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[564438,564451] [2021-11-04 11:30:33,108 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_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[564607,564620] [2021-11-04 11:30:33,108 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_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[564774,564787] [2021-11-04 11:30:33,108 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_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[564942,564955] [2021-11-04 11:30:33,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 11:30:33,472 INFO L208 MainTranslator]: Completed translation [2021-11-04 11:30:33,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:30:33 WrapperNode [2021-11-04 11:30:33,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 11:30:33,474 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 11:30:33,474 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 11:30:33,474 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 11:30:33,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:30:33" (1/1) ... [2021-11-04 11:30:33,616 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:30:33" (1/1) ... [2021-11-04 11:30:36,763 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 11:30:36,764 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 11:30:36,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 11:30:36,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 11:30:36,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:30:33" (1/1) ... [2021-11-04 11:30:36,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:30:33" (1/1) ... [2021-11-04 11:30:37,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:30:33" (1/1) ... [2021-11-04 11:30:37,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:30:33" (1/1) ... [2021-11-04 11:30:39,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:30:33" (1/1) ... [2021-11-04 11:30:40,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:30:33" (1/1) ... [2021-11-04 11:30:40,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:30:33" (1/1) ... [2021-11-04 11:30:40,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 11:30:40,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 11:30:40,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 11:30:40,983 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 11:30:40,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:30:33" (1/1) ... [2021-11-04 11:30:40,990 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 11:30:41,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 11:30:41,016 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) [2021-11-04 11:30:41,041 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 [2021-11-04 11:30:41,061 INFO L130 BoogieDeclarations]: Found specification of procedure enic_notify_timer [2021-11-04 11:30:41,062 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_notify_timer [2021-11-04 11:30:41,062 INFO L130 BoogieDeclarations]: Found specification of procedure enic_dev_open [2021-11-04 11:30:41,062 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_dev_open [2021-11-04 11:30:41,062 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-04 11:30:41,062 INFO L130 BoogieDeclarations]: Found specification of procedure enic_probe [2021-11-04 11:30:41,063 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_probe [2021-11-04 11:30:41,063 INFO L130 BoogieDeclarations]: Found specification of procedure enic_pp_preassociate_rr [2021-11-04 11:30:41,063 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_pp_preassociate_rr [2021-11-04 11:30:41,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 11:30:41,063 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-11-04 11:30:41,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-11-04 11:30:41,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 11:30:41,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_4_2 [2021-11-04 11:30:41,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_4_2 [2021-11-04 11:30:41,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-04 11:30:41,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-04 11:30:41,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 11:30:41,064 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-04 11:30:41,064 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-04 11:30:41,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-04 11:30:41,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 11:30:41,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 11:30:41,065 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_rq_fill [2021-11-04 11:30:41,065 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_rq_fill [2021-11-04 11:30:41,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 11:30:41,065 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-04 11:30:41,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 11:30:41,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 11:30:41,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 11:30:41,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_4 [2021-11-04 11:30:41,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_4 [2021-11-04 11:30:41,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 11:30:41,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 11:30:41,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 11:30:41,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_86 [2021-11-04 11:30:41,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_86 [2021-11-04 11:30:41,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_9_2 [2021-11-04 11:30:41,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_9_2 [2021-11-04 11:30:41,067 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-04 11:30:41,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-04 11:30:41,068 INFO L130 BoogieDeclarations]: Found specification of procedure enic_dev_wait [2021-11-04 11:30:41,068 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_dev_wait [2021-11-04 11:30:41,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 11:30:41,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 11:30:41,068 INFO L130 BoogieDeclarations]: Found specification of procedure enic_open [2021-11-04 11:30:41,069 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_open [2021-11-04 11:30:41,069 INFO L130 BoogieDeclarations]: Found specification of procedure enic_pp_associate [2021-11-04 11:30:41,069 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_pp_associate [2021-11-04 11:30:41,069 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-04 11:30:41,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-04 11:30:41,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 11:43:04,976 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_pci_pci_instance_3_switch_break: call ULTIMATE.dealloc(ldv_pci_pci_instance_3_~#ldv_3_resource_pm_message~0.base, ldv_pci_pci_instance_3_~#ldv_3_resource_pm_message~0.offset);havoc ldv_pci_pci_instance_3_~#ldv_3_resource_pm_message~0.base, ldv_pci_pci_instance_3_~#ldv_3_resource_pm_message~0.offset; [2021-11-04 11:43:04,978 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 11:43:04,978 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L13137: #t~ret2597 := main_#res; [2021-11-04 11:43:04,979 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_16_returnLabel: main_#res := 0; [2021-11-04 11:43:05,322 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 11:43:05,323 INFO L299 CfgBuilder]: Removed 22088 assume(true) statements. [2021-11-04 11:43:05,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 11:43:05 BoogieIcfgContainer [2021-11-04 11:43:05,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 11:43:05,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 11:43:05,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 11:43:05,353 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 11:43:05,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 11:30:27" (1/3) ... [2021-11-04 11:43:05,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c1140cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 11:43:05, skipping insertion in model container [2021-11-04 11:43:05,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:30:33" (2/3) ... [2021-11-04 11:43:05,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c1140cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 11:43:05, skipping insertion in model container [2021-11-04 11:43:05,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 11:43:05" (3/3) ... [2021-11-04 11:43:05,357 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i [2021-11-04 11:43:05,361 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 11:43:05,361 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 239 error locations. [2021-11-04 11:43:05,480 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 11:43:05,485 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 [2021-11-04 11:43:05,486 INFO L340 AbstractCegarLoop]: Starting to check reachability of 239 error locations. [2021-11-04 11:43:05,819 INFO L276 IsEmpty]: Start isEmpty. Operand has 28820 states, 28530 states have (on average 1.4478093235191027) internal successors, (41306), 28768 states have internal predecessors, (41306), 34 states have call successors, (34), 17 states have call predecessors, (34), 17 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2021-11-04 11:43:05,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-04 11:43:05,823 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 11:43:05,824 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] [2021-11-04 11:43:05,825 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION === [enic_openErr0ASSERT_VIOLATIONERROR_FUNCTION, enic_openErr1ASSERT_VIOLATIONERROR_FUNCTION, enic_openErr2ASSERT_VIOLATIONERROR_FUNCTION (and 236 more)] === [2021-11-04 11:43:05,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 11:43:05,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1831395833, now seen corresponding path program 1 times [2021-11-04 11:43:05,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 11:43:05,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956028142] [2021-11-04 11:43:05,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 11:43:05,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 11:43:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 11:43:07,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 11:43:07,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 11:43:07,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956028142] [2021-11-04 11:43:07,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956028142] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 11:43:07,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 11:43:07,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 11:43:07,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952837328] [2021-11-04 11:43:07,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 11:43:07,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 11:43:07,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 11:43:07,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 11:43:07,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 11:43:07,225 INFO L87 Difference]: Start difference. First operand has 28820 states, 28530 states have (on average 1.4478093235191027) internal successors, (41306), 28768 states have internal predecessors, (41306), 34 states have call successors, (34), 17 states have call predecessors, (34), 17 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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)