./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.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 0ed43de24ffaa93b1a37c00c78c0cdaa1e1005aa52f2fbac965e933337484318 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 11:51:29,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 11:51:29,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 11:51:29,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 11:51:29,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 11:51:29,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 11:51:29,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 11:51:29,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 11:51:29,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 11:51:29,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 11:51:29,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 11:51:29,303 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 11:51:29,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 11:51:29,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 11:51:29,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 11:51:29,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 11:51:29,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 11:51:29,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 11:51:29,315 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 11:51:29,319 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 11:51:29,321 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 11:51:29,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 11:51:29,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 11:51:29,323 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 11:51:29,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 11:51:29,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 11:51:29,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 11:51:29,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 11:51:29,328 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 11:51:29,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 11:51:29,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 11:51:29,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 11:51:29,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 11:51:29,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 11:51:29,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 11:51:29,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 11:51:29,334 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 11:51:29,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 11:51:29,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 11:51:29,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 11:51:29,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 11:51:29,336 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 11:51:29,367 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 11:51:29,367 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 11:51:29,368 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 11:51:29,368 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 11:51:29,369 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 11:51:29,369 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 11:51:29,369 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 11:51:29,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 11:51:29,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 11:51:29,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 11:51:29,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 11:51:29,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 11:51:29,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 11:51:29,371 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 11:51:29,371 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 11:51:29,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 11:51:29,371 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 11:51:29,372 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 11:51:29,372 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 11:51:29,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 11:51:29,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 11:51:29,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 11:51:29,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 11:51:29,372 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 11:51:29,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 11:51:29,373 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 11:51:29,373 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 11:51:29,373 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 11:51:29,373 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 11:51:29,373 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ed43de24ffaa93b1a37c00c78c0cdaa1e1005aa52f2fbac965e933337484318 [2021-11-04 11:51:29,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 11:51:29,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 11:51:29,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 11:51:29,580 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 11:51:29,581 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 11:51:29,582 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i [2021-11-04 11:51:29,619 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f1412520/68766160c34b4cc6b4c2333f6ad98e1a/FLAG2605ecc19 [2021-11-04 11:51:30,354 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 11:51:30,355 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i [2021-11-04 11:51:30,407 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f1412520/68766160c34b4cc6b4c2333f6ad98e1a/FLAG2605ecc19 [2021-11-04 11:51:30,660 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f1412520/68766160c34b4cc6b4c2333f6ad98e1a [2021-11-04 11:51:30,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 11:51:30,663 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 11:51:30,664 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 11:51:30,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 11:51:30,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 11:51:30,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 11:51:30" (1/1) ... [2021-11-04 11:51:30,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@283a838f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:51:30, skipping insertion in model container [2021-11-04 11:51:30,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 11:51:30" (1/1) ... [2021-11-04 11:51:30,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 11:51:30,775 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 11:51:33,720 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[458925,458938] [2021-11-04 11:51:33,722 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[459070,459083] [2021-11-04 11:51:33,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 11:51:33,782 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 11:51:34,088 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[458925,458938] [2021-11-04 11:51:34,089 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[459070,459083] [2021-11-04 11:51:34,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 11:51:34,318 INFO L208 MainTranslator]: Completed translation [2021-11-04 11:51:34,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:51:34 WrapperNode [2021-11-04 11:51:34,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 11:51:34,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 11:51:34,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 11:51:34,320 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 11:51:34,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:51:34" (1/1) ... [2021-11-04 11:51:34,440 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:51:34" (1/1) ... [2021-11-04 11:51:46,096 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 11:51:46,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 11:51:46,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 11:51:46,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 11:51:46,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:51:34" (1/1) ... [2021-11-04 11:51:46,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:51:34" (1/1) ... [2021-11-04 11:51:47,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:51:34" (1/1) ... [2021-11-04 11:51:47,698 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:51:34" (1/1) ... [2021-11-04 11:51:50,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:51:34" (1/1) ... [2021-11-04 11:51:51,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:51:34" (1/1) ... [2021-11-04 11:51:52,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:51:34" (1/1) ... [2021-11-04 11:51:53,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 11:51:53,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 11:51:53,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 11:51:53,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 11:51:53,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:51:34" (1/1) ... [2021-11-04 11:51:53,458 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 11:51:53,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 11:51:53,484 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 11:51:53,486 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 11:51:53,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 11:51:53,532 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2021-11-04 11:51:53,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 11:51:53,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 11:51:53,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 11:51:53,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 11:51:53,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 11:51:53,533 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-04 11:51:53,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 11:51:53,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 11:51:53,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 11:51:53,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 11:51:53,533 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-04 11:51:53,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 11:51:53,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 11:51:53,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 11:51:53,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 11:51:53,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 11:52:13,513 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-04 11:52:13,514 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-04 11:52:13,514 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-04 11:52:13,515 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#2: ldv_switch_4_#res := 0; [2021-11-04 11:52:13,516 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-04 11:52:13,520 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-04 11:52:13,521 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-04 11:52:13,521 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-04 11:52:13,521 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-04 11:52:13,521 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-04 11:52:13,526 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 11:52:13,542 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break: ldv_switch_4_#res := 0; [2021-11-04 11:52:13,677 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 11:52:13,677 INFO L299 CfgBuilder]: Removed 88288 assume(true) statements. [2021-11-04 11:52:13,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 11:52:13 BoogieIcfgContainer [2021-11-04 11:52:13,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 11:52:13,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 11:52:13,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 11:52:13,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 11:52:13,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 11:51:30" (1/3) ... [2021-11-04 11:52:13,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3735965e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 11:52:13, skipping insertion in model container [2021-11-04 11:52:13,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:51:34" (2/3) ... [2021-11-04 11:52:13,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3735965e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 11:52:13, skipping insertion in model container [2021-11-04 11:52:13,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 11:52:13" (3/3) ... [2021-11-04 11:52:13,734 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i [2021-11-04 11:52:13,737 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 11:52:13,738 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 184 error locations. [2021-11-04 11:52:14,164 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 11:52:14,168 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 11:52:14,168 INFO L340 AbstractCegarLoop]: Starting to check reachability of 184 error locations. [2021-11-04 11:52:14,698 INFO L276 IsEmpty]: Start isEmpty. Operand has 66501 states, 66317 states have (on average 1.2883875929248911) internal successors, (85442), 66500 states have internal predecessors, (85442), 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) [2021-11-04 11:52:14,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-04 11:52:14,715 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 11:52:14,715 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 11:52:14,716 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 181 more)] === [2021-11-04 11:52:14,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 11:52:14,719 INFO L85 PathProgramCache]: Analyzing trace with hash -2004797123, now seen corresponding path program 1 times [2021-11-04 11:52:14,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 11:52:14,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125935514] [2021-11-04 11:52:14,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 11:52:14,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 11:52:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 11:52:15,357 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 11:52:15,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 11:52:15,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125935514] [2021-11-04 11:52:15,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125935514] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 11:52:15,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 11:52:15,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 11:52:15,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758897450] [2021-11-04 11:52:15,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 11:52:15,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 11:52:15,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 11:52:15,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 11:52:15,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 11:52:15,450 INFO L87 Difference]: Start difference. First operand has 66501 states, 66317 states have (on average 1.2883875929248911) internal successors, (85442), 66500 states have internal predecessors, (85442), 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) Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-11-04 11:52:17,565 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:53:10,049 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:54:20,160 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:54:49,278 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 [] [2021-11-04 11:58:31,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 11:58:31,570 INFO L93 Difference]: Finished difference Result 185414 states and 237614 transitions. [2021-11-04 11:58:31,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 11:58:31,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) Word has length 79 [2021-11-04 11:58:31,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 11:58:32,185 INFO L225 Difference]: With dead ends: 185414 [2021-11-04 11:58:32,185 INFO L226 Difference]: Without dead ends: 115320 [2021-11-04 11:58:32,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.79ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 11:58:32,376 INFO L933 BasicCegarLoop]: 2022 mSDtfsCounter, 68020 mSDsluCounter, 82340 mSDsCounter, 0 mSdLazyCounter, 160803 mSolverCounterSat, 21 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 321464.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 68020 SdHoareTripleChecker+Valid, 4042 SdHoareTripleChecker+Invalid, 160828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 513.49ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 160803 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 367857.21ms IncrementalHoareTripleChecker+Time [2021-11-04 11:58:32,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68020 Valid, 4042 Invalid, 160828 Unknown, 0 Unchecked, 513.49ms Time], IncrementalHoareTripleChecker [21 Valid, 160803 Invalid, 4 Unknown, 0 Unchecked, 367857.21ms Time] [2021-11-04 11:58:32,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115320 states. [2021-11-04 11:58:34,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115320 to 114888. [2021-11-04 11:58:34,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114888 states, 114704 states have (on average 1.2445599107267402) internal successors, (142756), 114887 states have internal predecessors, (142756), 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) [2021-11-04 11:58:34,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114888 states to 114888 states and 142756 transitions. [2021-11-04 11:58:34,880 INFO L78 Accepts]: Start accepts. Automaton has 114888 states and 142756 transitions. Word has length 79 [2021-11-04 11:58:34,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 11:58:34,884 INFO L470 AbstractCegarLoop]: Abstraction has 114888 states and 142756 transitions. [2021-11-04 11:58:34,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-11-04 11:58:34,886 INFO L276 IsEmpty]: Start isEmpty. Operand 114888 states and 142756 transitions. [2021-11-04 11:58:34,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-04 11:58:34,891 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 11:58:34,891 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 11:58:34,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 11:58:34,891 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 181 more)] === [2021-11-04 11:58:34,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 11:58:34,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1590367362, now seen corresponding path program 1 times [2021-11-04 11:58:34,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 11:58:34,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10671206] [2021-11-04 11:58:34,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 11:58:34,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 11:58:35,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 11:58:35,572 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 11:58:35,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 11:58:35,573 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10671206] [2021-11-04 11:58:35,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10671206] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 11:58:35,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 11:58:35,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 11:58:35,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806414226] [2021-11-04 11:58:35,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 11:58:35,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 11:58:35,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 11:58:35,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 11:58:35,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 11:58:35,580 INFO L87 Difference]: Start difference. First operand 114888 states and 142756 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2021-11-04 11:58:37,671 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:01:05,108 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:01:45,120 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:01:50,157 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