./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f8c931-b5f7-471c-9a73-199b5c7849ab/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f8c931-b5f7-471c-9a73-199b5c7849ab/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f8c931-b5f7-471c-9a73-199b5c7849ab/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f8c931-b5f7-471c-9a73-199b5c7849ab/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f8c931-b5f7-471c-9a73-199b5c7849ab/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f8c931-b5f7-471c-9a73-199b5c7849ab/bin/uautomizer-w2VwFs6gM0 --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 004fcd1800da3fcc8c5839d85d0662ed24df5100e10ec8a5024be56f561eab28 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 16:23:06,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 16:23:06,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 16:23:06,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 16:23:06,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 16:23:06,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 16:23:06,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 16:23:06,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 16:23:06,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 16:23:06,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 16:23:06,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 16:23:06,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 16:23:06,432 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 16:23:06,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 16:23:06,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 16:23:06,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 16:23:06,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 16:23:06,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 16:23:06,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 16:23:06,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 16:23:06,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 16:23:06,464 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 16:23:06,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 16:23:06,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 16:23:06,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 16:23:06,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 16:23:06,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 16:23:06,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 16:23:06,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 16:23:06,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 16:23:06,481 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 16:23:06,482 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 16:23:06,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 16:23:06,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 16:23:06,488 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 16:23:06,488 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 16:23:06,489 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 16:23:06,489 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 16:23:06,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 16:23:06,490 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 16:23:06,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 16:23:06,492 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f8c931-b5f7-471c-9a73-199b5c7849ab/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 16:23:06,544 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 16:23:06,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 16:23:06,545 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 16:23:06,545 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 16:23:06,547 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 16:23:06,547 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 16:23:06,548 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 16:23:06,548 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 16:23:06,548 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 16:23:06,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 16:23:06,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 16:23:06,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 16:23:06,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 16:23:06,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 16:23:06,551 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 16:23:06,551 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 16:23:06,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 16:23:06,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 16:23:06,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 16:23:06,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:23:06,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 16:23:06,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 16:23:06,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 16:23:06,553 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 16:23:06,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 16:23:06,554 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 16:23:06,554 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 16:23:06,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 16:23:06,555 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 16:23:06,557 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f8c931-b5f7-471c-9a73-199b5c7849ab/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f8c931-b5f7-471c-9a73-199b5c7849ab/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 004fcd1800da3fcc8c5839d85d0662ed24df5100e10ec8a5024be56f561eab28 [2021-11-22 16:23:06,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 16:23:06,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 16:23:06,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 16:23:06,899 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 16:23:06,900 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 16:23:06,901 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f8c931-b5f7-471c-9a73-199b5c7849ab/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2021-11-22 16:23:06,983 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f8c931-b5f7-471c-9a73-199b5c7849ab/bin/uautomizer-w2VwFs6gM0/data/49194f45a/d76f06de20954e8e8c0411b9486249c6/FLAGfc224348a [2021-11-22 16:23:08,156 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 16:23:08,157 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f8c931-b5f7-471c-9a73-199b5c7849ab/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2021-11-22 16:23:08,252 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f8c931-b5f7-471c-9a73-199b5c7849ab/bin/uautomizer-w2VwFs6gM0/data/49194f45a/d76f06de20954e8e8c0411b9486249c6/FLAGfc224348a [2021-11-22 16:23:08,387 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f8c931-b5f7-471c-9a73-199b5c7849ab/bin/uautomizer-w2VwFs6gM0/data/49194f45a/d76f06de20954e8e8c0411b9486249c6 [2021-11-22 16:23:08,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 16:23:08,390 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 16:23:08,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 16:23:08,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 16:23:08,399 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 16:23:08,400 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:23:08" (1/1) ... [2021-11-22 16:23:08,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41745bf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:23:08, skipping insertion in model container [2021-11-22 16:23:08,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:23:08" (1/1) ... [2021-11-22 16:23:08,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 16:23:08,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 16:23:13,265 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f8c931-b5f7-471c-9a73-199b5c7849ab/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[452511,452524] [2021-11-22 16:23:13,268 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f8c931-b5f7-471c-9a73-199b5c7849ab/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[452656,452669] [2021-11-22 16:23:13,294 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:23:13,340 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 16:23:13,846 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f8c931-b5f7-471c-9a73-199b5c7849ab/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[452511,452524] [2021-11-22 16:23:13,847 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f8c931-b5f7-471c-9a73-199b5c7849ab/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[452656,452669] [2021-11-22 16:23:13,855 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:23:14,238 INFO L208 MainTranslator]: Completed translation [2021-11-22 16:23:14,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:23:14 WrapperNode [2021-11-22 16:23:14,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 16:23:14,241 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 16:23:14,241 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 16:23:14,241 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 16:23:14,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:23:14" (1/1) ... [2021-11-22 16:23:14,414 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:23:14" (1/1) ... [2021-11-22 16:23:26,262 INFO L137 Inliner]: procedures = 548, calls = 4413, calls flagged for inlining = 1224, calls inlined = 84522, statements flattened = 538534 [2021-11-22 16:23:26,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 16:23:26,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 16:23:26,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 16:23:26,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 16:23:26,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:23:14" (1/1) ... [2021-11-22 16:23:26,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:23:14" (1/1) ... [2021-11-22 16:23:30,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:23:14" (1/1) ... [2021-11-22 16:23:30,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:23:14" (1/1) ... [2021-11-22 16:23:38,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:23:14" (1/1) ... [2021-11-22 16:23:39,915 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:23:14" (1/1) ... [2021-11-22 16:23:41,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:23:14" (1/1) ... [2021-11-22 16:23:44,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 16:23:44,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 16:23:44,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 16:23:44,691 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 16:23:44,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:23:14" (1/1) ... [2021-11-22 16:23:44,713 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:23:44,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f8c931-b5f7-471c-9a73-199b5c7849ab/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:23:44,743 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f8c931-b5f7-471c-9a73-199b5c7849ab/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 16:23:44,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f8c931-b5f7-471c-9a73-199b5c7849ab/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 16:23:44,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_122 [2021-11-22 16:23:44,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_122 [2021-11-22 16:23:44,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_107 [2021-11-22 16:23:44,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_107 [2021-11-22 16:23:44,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_5 [2021-11-22 16:23:44,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_5 [2021-11-22 16:23:44,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_5_2 [2021-11-22 16:23:44,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_5_2 [2021-11-22 16:23:44,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 16:23:44,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-22 16:23:44,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 16:23:44,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 16:23:44,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 16:23:44,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-22 16:23:44,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-22 16:23:44,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 16:23:44,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 16:23:44,805 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-22 16:23:44,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-22 16:23:44,806 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_rx [2021-11-22 16:23:44,806 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_rx [2021-11-22 16:23:44,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 16:23:44,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 16:23:44,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-22 16:23:44,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 16:23:44,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 16:23:44,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 16:23:44,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 16:23:44,807 INFO L130 BoogieDeclarations]: Found specification of procedure rx_oom_timer [2021-11-22 16:23:44,808 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_oom_timer [2021-11-22 16:23:44,808 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_timer [2021-11-22 16:23:44,808 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_timer [2021-11-22 16:23:44,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 16:23:44,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_10_2 [2021-11-22 16:23:44,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_10_2 [2021-11-22 16:23:44,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 16:23:46,239 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 16:23:46,241 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 16:26:27,405 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_pci_pci_instance_2_switch_break#1: call ULTIMATE.dealloc(ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0#1.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0#1.offset);havoc ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0#1.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0#1.offset; [2021-11-22 16:26:27,411 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L12303: #t~ret1749#1 := main_#res#1;assume { :end_inline_main } true; [2021-11-22 16:26:27,418 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-22 16:26:27,436 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_16_returnLabel#1: assume { :end_inline_ldv_entry_EMGentry_16 } true;main_#res#1 := 0; [2021-11-22 16:26:27,481 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 16:26:28,364 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 16:26:28,365 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 16:26:28,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:26:28 BoogieIcfgContainer [2021-11-22 16:26:28,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 16:26:28,499 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 16:26:28,499 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 16:26:28,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 16:26:28,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:23:08" (1/3) ... [2021-11-22 16:26:28,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34e4086c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:26:28, skipping insertion in model container [2021-11-22 16:26:28,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:23:14" (2/3) ... [2021-11-22 16:26:28,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34e4086c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:26:28, skipping insertion in model container [2021-11-22 16:26:28,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:26:28" (3/3) ... [2021-11-22 16:26:28,510 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2021-11-22 16:26:28,516 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 16:26:28,517 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 40 error locations. [2021-11-22 16:26:28,955 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 16:26:28,964 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 [2021-11-22 16:26:28,964 INFO L340 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2021-11-22 16:26:30,507 INFO L276 IsEmpty]: Start isEmpty. Operand has 129085 states, 129000 states have (on average 1.2101627906976744) internal successors, (156111), 129040 states have internal predecessors, (156111), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) [2021-11-22 16:26:30,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-22 16:26:30,532 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:26:30,533 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] [2021-11-22 16:26:30,533 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [boomerang_rxErr0ASSERT_VIOLATIONERROR_FUNCTION, boomerang_rxErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2021-11-22 16:26:30,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:26:30,540 INFO L85 PathProgramCache]: Analyzing trace with hash 583352118, now seen corresponding path program 1 times [2021-11-22 16:26:30,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:26:30,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644372100] [2021-11-22 16:26:30,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:26:30,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:26:31,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:26:32,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:26:32,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:26:32,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644372100] [2021-11-22 16:26:32,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644372100] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:26:32,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:26:32,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 16:26:32,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571100078] [2021-11-22 16:26:32,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:26:32,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:26:32,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:26:32,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:26:32,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:26:32,587 INFO L87 Difference]: Start difference. First operand has 129085 states, 129000 states have (on average 1.2101627906976744) internal successors, (156111), 129040 states have internal predecessors, (156111), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 2 states have internal predecessors, (72), 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) [2021-11-22 16:26:38,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:26:38,826 INFO L93 Difference]: Finished difference Result 258131 states and 312348 transitions. [2021-11-22 16:26:38,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:26:38,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 2 states have internal predecessors, (72), 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 72 [2021-11-22 16:26:38,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:26:39,410 INFO L225 Difference]: With dead ends: 258131 [2021-11-22 16:26:39,414 INFO L226 Difference]: Without dead ends: 118680 [2021-11-22 16:26:39,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:26:39,746 INFO L933 BasicCegarLoop]: 155895 mSDtfsCounter, 155869 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155869 SdHoareTripleChecker+Valid, 155895 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 16:26:39,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155869 Valid, 155895 Invalid, 81 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [39 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 16:26:40,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118680 states.