/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain IntervalDomain -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sfc-sfc.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 02:23:39,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 02:23:39,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 02:23:39,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 02:23:39,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 02:23:39,601 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 02:23:39,604 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 02:23:39,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 02:23:39,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 02:23:39,613 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 02:23:39,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 02:23:39,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 02:23:39,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 02:23:39,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 02:23:39,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 02:23:39,622 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 02:23:39,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 02:23:39,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 02:23:39,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 02:23:39,630 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 02:23:39,631 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 02:23:39,632 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 02:23:39,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 02:23:39,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 02:23:39,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 02:23:39,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 02:23:39,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 02:23:39,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 02:23:39,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 02:23:39,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 02:23:39,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 02:23:39,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 02:23:39,646 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 02:23:39,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 02:23:39,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 02:23:39,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 02:23:39,648 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 02:23:39,648 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 02:23:39,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 02:23:39,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 02:23:39,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 02:23:39,650 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 02:23:39,683 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 02:23:39,683 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 02:23:39,684 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 02:23:39,684 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 02:23:39,684 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 02:23:39,685 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 02:23:39,685 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 02:23:39,685 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 02:23:39,685 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 02:23:39,685 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 02:23:39,686 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 02:23:39,686 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 02:23:39,686 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 02:23:39,686 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 02:23:39,686 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 02:23:39,686 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 02:23:39,686 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 02:23:39,687 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 02:23:39,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 02:23:39,687 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 02:23:39,687 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 02:23:39,687 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 02:23:39,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 02:23:39,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 02:23:39,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 02:23:39,688 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 02:23:39,688 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 02:23:39,688 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 02:23:39,688 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 02:23:39,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 02:23:39,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 02:23:39,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 02:23:39,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 02:23:39,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 02:23:39,689 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 02:23:39,689 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 02:23:39,690 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 02:23:39,690 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 02:23:39,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 02:23:39,690 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 02:23:39,690 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 02:23:39,690 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-04-01 02:23:39,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 02:23:39,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 02:23:39,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 02:23:39,925 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 02:23:39,926 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 02:23:39,927 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sfc-sfc.cil.i [2023-04-01 02:23:41,117 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 02:23:42,559 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 02:23:42,560 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sfc-sfc.cil.i [2023-04-01 02:23:42,739 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eca5e9bc2/0eac38aa0c0947fd90a9731e3457920d/FLAG7a98fadcf [2023-04-01 02:23:42,757 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eca5e9bc2/0eac38aa0c0947fd90a9731e3457920d [2023-04-01 02:23:42,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 02:23:42,762 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 02:23:42,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 02:23:42,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 02:23:42,768 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 02:23:42,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 02:23:42" (1/1) ... [2023-04-01 02:23:42,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@331108df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 02:23:42, skipping insertion in model container [2023-04-01 02:23:42,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 02:23:42" (1/1) ... [2023-04-01 02:23:42,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 02:23:43,283 INFO L178 MainTranslator]: Built tables and reachable declarations