/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 17:24:58,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 17:24:58,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 17:24:58,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 17:24:58,473 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 17:24:58,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 17:24:58,480 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 17:24:58,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 17:24:58,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 17:24:58,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 17:24:58,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 17:24:58,500 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 17:24:58,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 17:24:58,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 17:24:58,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 17:24:58,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 17:24:58,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 17:24:58,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 17:24:58,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 17:24:58,528 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 17:24:58,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 17:24:58,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 17:24:58,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 17:24:58,536 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 17:24:58,545 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 17:24:58,545 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 17:24:58,546 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 17:24:58,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 17:24:58,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 17:24:58,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 17:24:58,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 17:24:58,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 17:24:58,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 17:24:58,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 17:24:58,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 17:24:58,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 17:24:58,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 17:24:58,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 17:24:58,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 17:24:58,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 17:24:58,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 17:24:58,562 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 17:24:58,626 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 17:24:58,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 17:24:58,632 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 17:24:58,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 17:24:58,633 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 17:24:58,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 17:24:58,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 17:24:58,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 17:24:58,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 17:24:58,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 17:24:58,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 17:24:58,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 17:24:58,636 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 17:24:58,636 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 17:24:58,636 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 17:24:58,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 17:24:58,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 17:24:58,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 17:24:58,637 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 17:24:58,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 17:24:58,638 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 17:24:58,638 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 17:24:58,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 17:24:58,639 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 17:24:58,639 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 17:24:58,639 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 17:24:59,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 17:24:59,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 17:24:59,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 17:24:59,106 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 17:24:59,106 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 17:24:59,107 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2020-12-22 17:24:59,206 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bda02c959/e0e7e4b09e2f45a4813a5649464b2331/FLAGd2a7edb70 [2020-12-22 17:25:00,584 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 17:25:00,585 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2020-12-22 17:25:00,658 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bda02c959/e0e7e4b09e2f45a4813a5649464b2331/FLAGd2a7edb70 [2020-12-22 17:25:00,741 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bda02c959/e0e7e4b09e2f45a4813a5649464b2331 [2020-12-22 17:25:00,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 17:25:00,747 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 17:25:00,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 17:25:00,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 17:25:00,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 17:25:00,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:25:00" (1/1) ... [2020-12-22 17:25:00,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c842510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:25:00, skipping insertion in model container [2020-12-22 17:25:00,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:25:00" (1/1) ... [2020-12-22 17:25:00,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 17:25:01,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 17:25:07,180 WARN L226 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-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519506,519519] [2020-12-22 17:25:07,185 WARN L226 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-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519651,519664] [2020-12-22 17:25:07,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 17:25:07,356 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 17:25:08,116 WARN L226 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-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519506,519519] [2020-12-22 17:25:08,116 WARN L226 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-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519651,519664] [2020-12-22 17:25:08,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 17:25:09,699 INFO L208 MainTranslator]: Completed translation [2020-12-22 17:25:09,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:25:09 WrapperNode [2020-12-22 17:25:09,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 17:25:09,702 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 17:25:09,702 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 17:25:09,702 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 17:25:09,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:25:09" (1/1) ... [2020-12-22 17:25:09,999 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:25:09" (1/1) ... [2020-12-22 17:25:20,456 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 17:25:20,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 17:25:20,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 17:25:20,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 17:25:20,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:25:09" (1/1) ... [2020-12-22 17:25:20,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:25:09" (1/1) ... [2020-12-22 17:25:22,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:25:09" (1/1) ... [2020-12-22 17:25:22,167 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:25:09" (1/1) ... [2020-12-22 17:25:25,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:25:09" (1/1) ... [2020-12-22 17:25:26,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:25:09" (1/1) ... [2020-12-22 17:25:27,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:25:09" (1/1) ... [2020-12-22 17:25:28,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 17:25:28,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 17:25:28,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 17:25:28,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 17:25:28,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:25:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 17:25:28,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 17:25:28,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 17:25:28,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 17:25:28,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 17:25:28,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 17:25:28,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 17:25:28,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 17:25:28,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 17:25:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 17:25:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 17:25:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 17:25:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 17:25:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 17:25:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 17:25:28,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 17:25:28,286 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy