./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.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 3fe54d83d46de95e8e0767545626d085bd64ef94fa067827f6d89c4bc8eb39d0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 15:00:38,587 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 15:00:38,590 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 15:00:38,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 15:00:38,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 15:00:38,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 15:00:38,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 15:00:38,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 15:00:38,640 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 15:00:38,644 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 15:00:38,645 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 15:00:38,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 15:00:38,650 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 15:00:38,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 15:00:38,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 15:00:38,656 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 15:00:38,656 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 15:00:38,658 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 15:00:38,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 15:00:38,664 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 15:00:38,665 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 15:00:38,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 15:00:38,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 15:00:38,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 15:00:38,670 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 15:00:38,677 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 15:00:38,678 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 15:00:38,678 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 15:00:38,679 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 15:00:38,679 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 15:00:38,680 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 15:00:38,680 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 15:00:38,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 15:00:38,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 15:00:38,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 15:00:38,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 15:00:38,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 15:00:38,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 15:00:38,686 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 15:00:38,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 15:00:38,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 15:00:38,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 15:00:38,696 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 15:00:38,729 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 15:00:38,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 15:00:38,730 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 15:00:38,731 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 15:00:38,731 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 15:00:38,732 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 15:00:38,732 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 15:00:38,732 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 15:00:38,733 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 15:00:38,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 15:00:38,734 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 15:00:38,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 15:00:38,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 15:00:38,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 15:00:38,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 15:00:38,743 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 15:00:38,743 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 15:00:38,743 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 15:00:38,744 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 15:00:38,744 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 15:00:38,744 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 15:00:38,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 15:00:38,745 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 15:00:38,745 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 15:00:38,745 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 15:00:38,745 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 15:00:38,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 15:00:38,746 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 15:00:38,746 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 15:00:38,746 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 15:00:38,746 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fe54d83d46de95e8e0767545626d085bd64ef94fa067827f6d89c4bc8eb39d0 [2022-07-21 15:00:39,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 15:00:39,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 15:00:39,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 15:00:39,102 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 15:00:39,104 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 15:00:39,106 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i [2022-07-21 15:00:39,172 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51a9d3363/44f8968e24e44cce9813e3c543a113a7/FLAG51300e0dc [2022-07-21 15:00:39,974 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 15:00:39,975 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i [2022-07-21 15:00:40,034 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51a9d3363/44f8968e24e44cce9813e3c543a113a7/FLAG51300e0dc [2022-07-21 15:00:40,490 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51a9d3363/44f8968e24e44cce9813e3c543a113a7 [2022-07-21 15:00:40,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 15:00:40,494 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 15:00:40,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 15:00:40,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 15:00:40,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 15:00:40,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:00:40" (1/1) ... [2022-07-21 15:00:40,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14a5a667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:00:40, skipping insertion in model container [2022-07-21 15:00:40,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:00:40" (1/1) ... [2022-07-21 15:00:40,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 15:00:40,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 15:00:43,363 WARN L230 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-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i[358326,358339] [2022-07-21 15:00:43,366 WARN L230 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-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i[358495,358508] [2022-07-21 15:00:43,368 WARN L230 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-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i[358662,358675] [2022-07-21 15:00:43,368 WARN L230 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-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i[358830,358843] [2022-07-21 15:00:43,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:00:43,450 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 15:00:43,858 WARN L230 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-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i[358326,358339] [2022-07-21 15:00:43,859 WARN L230 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-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i[358495,358508] [2022-07-21 15:00:43,875 WARN L230 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-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i[358662,358675] [2022-07-21 15:00:43,877 WARN L230 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-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i[358830,358843] [2022-07-21 15:00:43,884 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:00:44,168 INFO L208 MainTranslator]: Completed translation [2022-07-21 15:00:44,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:00:44 WrapperNode [2022-07-21 15:00:44,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 15:00:44,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 15:00:44,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 15:00:44,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 15:00:44,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:00:44" (1/1) ... [2022-07-21 15:00:44,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:00:44" (1/1) ... [2022-07-21 15:00:44,505 INFO L137 Inliner]: procedures = 502, calls = 2414, calls flagged for inlining = 253, calls inlined = 226, statements flattened = 5584 [2022-07-21 15:00:44,505 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 15:00:44,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 15:00:44,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 15:00:44,508 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 15:00:44,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:00:44" (1/1) ... [2022-07-21 15:00:44,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:00:44" (1/1) ... [2022-07-21 15:00:44,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:00:44" (1/1) ... [2022-07-21 15:00:44,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:00:44" (1/1) ... [2022-07-21 15:00:44,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:00:44" (1/1) ... [2022-07-21 15:00:44,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:00:44" (1/1) ... [2022-07-21 15:00:44,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:00:44" (1/1) ... [2022-07-21 15:00:44,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 15:00:44,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 15:00:44,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 15:00:44,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 15:00:44,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:00:44" (1/1) ... [2022-07-21 15:00:44,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 15:00:44,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 15:00:44,893 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) [2022-07-21 15:00:44,915 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 [2022-07-21 15:00:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-07-21 15:00:44,931 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-07-21 15:00:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 15:00:44,931 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 15:00:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2022-07-21 15:00:44,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2022-07-21 15:00:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure desc_set_buf_addr [2022-07-21 15:00:44,932 INFO L138 BoogieDeclarations]: Found implementation of procedure desc_set_buf_addr [2022-07-21 15:00:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-21 15:00:44,932 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-21 15:00:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 15:00:44,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 15:00:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_interrupt [2022-07-21 15:00:44,933 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_interrupt [2022-07-21 15:00:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-21 15:00:44,933 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-21 15:00:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_rx_refill [2022-07-21 15:00:44,933 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_rx_refill [2022-07-21 15:00:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 15:00:44,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 15:00:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2022-07-21 15:00:44,934 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2022-07-21 15:00:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-21 15:00:44,934 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-21 15:00:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-21 15:00:44,934 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-21 15:00:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_poll_controller [2022-07-21 15:00:44,935 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_poll_controller [2022-07-21 15:00:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-07-21 15:00:44,935 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-07-21 15:00:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_set_mac_addr [2022-07-21 15:00:44,936 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_set_mac_addr [2022-07-21 15:00:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_unlock [2022-07-21 15:00:44,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_unlock [2022-07-21 15:00:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_tx_timeout [2022-07-21 15:00:44,936 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_tx_timeout [2022-07-21 15:00:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-21 15:00:44,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-21 15:00:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-21 15:00:44,937 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-21 15:00:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 15:00:44,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 15:00:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-07-21 15:00:44,938 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-07-21 15:00:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 15:00:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-21 15:00:44,938 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-21 15:00:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 15:00:44,939 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 15:00:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-21 15:00:44,939 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-21 15:00:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure desc_set_buf_addr_and_size [2022-07-21 15:00:44,940 INFO L138 BoogieDeclarations]: Found implementation of procedure desc_set_buf_addr_and_size [2022-07-21 15:00:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-21 15:00:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 15:00:44,941 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 15:00:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_probe [2022-07-21 15:00:44,941 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_probe [2022-07-21 15:00:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-21 15:00:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-21 15:00:44,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-21 15:00:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 15:00:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure desc_set_buf_len [2022-07-21 15:00:44,942 INFO L138 BoogieDeclarations]: Found implementation of procedure desc_set_buf_len [2022-07-21 15:00:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 15:00:44,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 15:00:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 15:00:44,943 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 15:00:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-21 15:00:44,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-21 15:00:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-21 15:00:44,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-21 15:00:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_suspend [2022-07-21 15:00:44,944 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_suspend [2022-07-21 15:00:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_lock [2022-07-21 15:00:44,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_lock [2022-07-21 15:00:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_open [2022-07-21 15:00:44,945 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_open [2022-07-21 15:00:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure desc_get_buf_len [2022-07-21 15:00:44,945 INFO L138 BoogieDeclarations]: Found implementation of procedure desc_get_buf_len [2022-07-21 15:00:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-07-21 15:00:44,945 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-07-21 15:00:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 15:00:44,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 15:00:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 15:00:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-21 15:00:44,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-21 15:00:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-07-21 15:00:44,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-07-21 15:00:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-07-21 15:00:44,947 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-07-21 15:00:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 15:00:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_pmt [2022-07-21 15:00:44,948 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_pmt [2022-07-21 15:00:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-21 15:00:44,948 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-21 15:00:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 15:00:44,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 15:00:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 15:00:44,949 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_free_tx_skbufs [2022-07-21 15:00:44,949 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_free_tx_skbufs [2022-07-21 15:00:44,949 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 15:00:44,949 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 15:00:44,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 15:00:44,949 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-21 15:00:44,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-21 15:00:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2022-07-21 15:00:44,950 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2022-07-21 15:00:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-21 15:00:44,950 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-21 15:00:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-07-21 15:00:44,951 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-07-21 15:00:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 15:00:44,953 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 15:00:44,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-21 15:00:44,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-21 15:00:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2022-07-21 15:00:44,955 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2022-07-21 15:00:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-21 15:00:44,956 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-21 15:00:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-21 15:00:44,957 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-21 15:00:44,962 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-21 15:00:44,963 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-21 15:00:44,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 15:00:44,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 15:00:44,963 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_mac_disable [2022-07-21 15:00:44,963 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_mac_disable [2022-07-21 15:00:44,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 15:00:44,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 15:00:44,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 15:00:44,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 15:00:44,964 INFO L130 BoogieDeclarations]: Found specification of procedure desc_init_tx_desc [2022-07-21 15:00:44,964 INFO L138 BoogieDeclarations]: Found implementation of procedure desc_init_tx_desc [2022-07-21 15:00:44,964 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-21 15:00:44,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-21 15:00:44,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 15:00:44,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 15:00:44,965 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-07-21 15:00:44,965 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-07-21 15:00:44,965 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-21 15:00:44,965 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-21 15:00:44,965 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-21 15:00:44,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-21 15:00:44,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-21 15:00:44,966 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2022-07-21 15:00:44,966 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2022-07-21 15:00:44,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 15:00:44,966 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 15:00:44,966 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-07-21 15:00:44,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-07-21 15:00:44,967 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-07-21 15:00:44,967 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-07-21 15:00:44,967 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-07-21 15:00:44,967 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-07-21 15:00:44,967 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_mac_enable [2022-07-21 15:00:44,967 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_mac_enable [2022-07-21 15:00:44,967 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-21 15:00:44,968 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-21 15:00:44,968 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-21 15:00:44,968 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-21 15:00:44,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 15:00:44,968 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_stop [2022-07-21 15:00:44,968 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_stop [2022-07-21 15:00:44,968 INFO L130 BoogieDeclarations]: Found specification of procedure desc_set_tx_owner [2022-07-21 15:00:44,968 INFO L138 BoogieDeclarations]: Found implementation of procedure desc_set_tx_owner [2022-07-21 15:00:44,969 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-21 15:00:44,969 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-21 15:00:44,969 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq [2022-07-21 15:00:44,969 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq [2022-07-21 15:00:44,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 15:00:44,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 15:00:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-21 15:00:44,970 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-21 15:00:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-21 15:00:44,970 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-21 15:00:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 15:00:44,970 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 15:00:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-07-21 15:00:44,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-07-21 15:00:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-21 15:00:44,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-21 15:00:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-07-21 15:00:44,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-07-21 15:00:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_set_flow_ctrl [2022-07-21 15:00:44,971 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_set_flow_ctrl [2022-07-21 15:00:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-21 15:00:44,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-21 15:00:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_resume [2022-07-21 15:00:44,972 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_resume [2022-07-21 15:00:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-07-21 15:00:44,972 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-07-21 15:00:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-21 15:00:44,972 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-21 15:00:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 15:00:44,972 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 15:00:44,973 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2022-07-21 15:00:44,973 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2022-07-21 15:00:44,973 INFO L130 BoogieDeclarations]: Found specification of procedure desc_get_tx_fs [2022-07-21 15:00:44,973 INFO L138 BoogieDeclarations]: Found implementation of procedure desc_get_tx_fs [2022-07-21 15:00:44,973 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-21 15:00:44,973 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-21 15:00:44,973 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_set_rx_mode [2022-07-21 15:00:44,973 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_set_rx_mode [2022-07-21 15:00:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-21 15:00:44,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-21 15:00:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 15:00:44,974 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 15:00:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 15:00:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 15:00:44,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 15:00:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-07-21 15:00:44,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-07-21 15:00:44,975 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-21 15:00:44,975 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-21 15:00:44,975 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-21 15:00:44,975 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-21 15:00:44,975 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-07-21 15:00:44,975 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-07-21 15:00:44,975 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2022-07-21 15:00:44,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2022-07-21 15:00:44,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-21 15:00:44,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-21 15:00:44,976 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-21 15:00:44,976 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-21 15:00:44,976 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-07-21 15:00:44,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-07-21 15:00:44,976 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2022-07-21 15:00:44,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2022-07-21 15:00:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2022-07-21 15:00:44,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2022-07-21 15:00:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-21 15:00:44,977 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-21 15:00:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-07-21 15:00:44,977 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-07-21 15:00:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-21 15:00:44,977 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-21 15:00:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_remove [2022-07-21 15:00:44,978 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_remove [2022-07-21 15:00:44,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 15:00:44,981 INFO L130 BoogieDeclarations]: Found specification of procedure desc_get_buf_addr [2022-07-21 15:00:44,981 INFO L138 BoogieDeclarations]: Found implementation of procedure desc_get_buf_addr [2022-07-21 15:00:44,982 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-07-21 15:00:44,982 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-07-21 15:00:44,982 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2022-07-21 15:00:44,982 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2022-07-21 15:00:44,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-21 15:00:44,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-21 15:00:44,982 INFO L130 BoogieDeclarations]: Found specification of procedure desc_get_tx_ls [2022-07-21 15:00:44,983 INFO L138 BoogieDeclarations]: Found implementation of procedure desc_get_tx_ls [2022-07-21 15:00:45,850 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 15:00:45,853 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 15:00:46,514 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 15:05:13,688 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-21 15:05:13,744 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 15:05:13,766 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 15:05:13,770 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2022-07-21 15:05:13,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:05:13 BoogieIcfgContainer [2022-07-21 15:05:13,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 15:05:13,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 15:05:13,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 15:05:13,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 15:05:13,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 03:00:40" (1/3) ... [2022-07-21 15:05:13,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78a7eae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:05:13, skipping insertion in model container [2022-07-21 15:05:13,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:00:44" (2/3) ... [2022-07-21 15:05:13,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78a7eae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:05:13, skipping insertion in model container [2022-07-21 15:05:13,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:05:13" (3/3) ... [2022-07-21 15:05:13,786 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i [2022-07-21 15:05:13,799 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 15:05:13,800 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-21 15:05:13,920 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 15:05:13,927 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@436605ef, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@743cb379 [2022-07-21 15:05:13,928 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-21 15:05:13,941 INFO L276 IsEmpty]: Start isEmpty. Operand has 2210 states, 1564 states have (on average 1.3203324808184143) internal successors, (2065), 1585 states have internal predecessors, (2065), 528 states have call successors, (528), 116 states have call predecessors, (528), 115 states have return successors, (521), 516 states have call predecessors, (521), 521 states have call successors, (521) [2022-07-21 15:05:13,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-21 15:05:13,960 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:05:13,961 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 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] [2022-07-21 15:05:13,961 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:05:13,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:05:13,966 INFO L85 PathProgramCache]: Analyzing trace with hash -842714519, now seen corresponding path program 1 times [2022-07-21 15:05:13,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:05:13,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180553824] [2022-07-21 15:05:13,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:05:13,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:05:15,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 15:05:15,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:05:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 15:05:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:05:15,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 15:05:15,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:05:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 15:05:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:05:15,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 15:05:15,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:05:15,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 15:05:15,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:05:15,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 15:05:15,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:05:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 15:05:15,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:05:15,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 15:05:15,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:05:15,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 15:05:15,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:05:15,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 15:05:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:05:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 15:05:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:05:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-21 15:05:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:05:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 15:05:15,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-21 15:05:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:05:15,846 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-07-21 15:05:15,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:05:15,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180553824] [2022-07-21 15:05:15,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180553824] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:05:15,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:05:15,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 15:05:15,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785402162] [2022-07-21 15:05:15,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:05:15,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:05:15,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:05:15,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:05:15,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:05:15,887 INFO L87 Difference]: Start difference. First operand has 2210 states, 1564 states have (on average 1.3203324808184143) internal successors, (2065), 1585 states have internal predecessors, (2065), 528 states have call successors, (528), 116 states have call predecessors, (528), 115 states have return successors, (521), 516 states have call predecessors, (521), 521 states have call successors, (521) Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16)