./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-cisco-enic-enic.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 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-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-cisco-enic-enic.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 dbb2be61a1eb664d217dd34c641f2c1314cec21ca43537debb14552a18ba1a09 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 19:54:49,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 19:54:49,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 19:54:49,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 19:54:49,528 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 19:54:49,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 19:54:49,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 19:54:49,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 19:54:49,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 19:54:49,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 19:54:49,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 19:54:49,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 19:54:49,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 19:54:49,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 19:54:49,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 19:54:49,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 19:54:49,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 19:54:49,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 19:54:49,547 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 19:54:49,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 19:54:49,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 19:54:49,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 19:54:49,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 19:54:49,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 19:54:49,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 19:54:49,560 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 19:54:49,560 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 19:54:49,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 19:54:49,562 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 19:54:49,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 19:54:49,562 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 19:54:49,563 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 19:54:49,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 19:54:49,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 19:54:49,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 19:54:49,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 19:54:49,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 19:54:49,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 19:54:49,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 19:54:49,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 19:54:49,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 19:54:49,569 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 19:54:49,592 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 19:54:49,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 19:54:49,593 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 19:54:49,593 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 19:54:49,594 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 19:54:49,594 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 19:54:49,594 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 19:54:49,595 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 19:54:49,595 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 19:54:49,595 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 19:54:49,596 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 19:54:49,596 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 19:54:49,596 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 19:54:49,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 19:54:49,596 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 19:54:49,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 19:54:49,597 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 19:54:49,597 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 19:54:49,597 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 19:54:49,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 19:54:49,597 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 19:54:49,597 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 19:54:49,598 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 19:54:49,598 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 19:54:49,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 19:54:49,598 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 19:54:49,598 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 19:54:49,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 19:54:49,599 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 19:54:49,599 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbb2be61a1eb664d217dd34c641f2c1314cec21ca43537debb14552a18ba1a09 [2021-11-06 19:54:49,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 19:54:49,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 19:54:49,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 19:54:49,809 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 19:54:49,810 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 19:54:49,810 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-cisco-enic-enic.cil.i [2021-11-06 19:54:49,876 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e48f22af3/e4d1bdf2e12d4f65a06bf9cdaa62b1fe/FLAG952e9aa6b [2021-11-06 19:54:50,560 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 19:54:50,561 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-cisco-enic-enic.cil.i [2021-11-06 19:54:50,611 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e48f22af3/e4d1bdf2e12d4f65a06bf9cdaa62b1fe/FLAG952e9aa6b [2021-11-06 19:54:50,901 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e48f22af3/e4d1bdf2e12d4f65a06bf9cdaa62b1fe [2021-11-06 19:54:50,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 19:54:50,904 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 19:54:50,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 19:54:50,905 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 19:54:50,907 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 19:54:50,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:54:50" (1/1) ... [2021-11-06 19:54:50,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1943481e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:50, skipping insertion in model container [2021-11-06 19:54:50,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:54:50" (1/1) ... [2021-11-06 19:54:50,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 19:54:51,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 19:54:54,824 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-cisco-enic-enic.cil.i[516351,516364] [2021-11-06 19:54:54,827 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-cisco-enic-enic.cil.i[516498,516511] [2021-11-06 19:54:54,828 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-cisco-enic-enic.cil.i[516637,516650] [2021-11-06 19:54:54,828 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-cisco-enic-enic.cil.i[516795,516808] [2021-11-06 19:54:54,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 19:54:54,945 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 19:54:55,465 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-cisco-enic-enic.cil.i[516351,516364] [2021-11-06 19:54:55,466 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-cisco-enic-enic.cil.i[516498,516511] [2021-11-06 19:54:55,466 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-cisco-enic-enic.cil.i[516637,516650] [2021-11-06 19:54:55,466 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-cisco-enic-enic.cil.i[516795,516808] [2021-11-06 19:54:55,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 19:54:55,722 INFO L208 MainTranslator]: Completed translation [2021-11-06 19:54:55,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:55 WrapperNode [2021-11-06 19:54:55,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 19:54:55,724 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 19:54:55,724 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 19:54:55,724 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 19:54:55,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:55" (1/1) ... [2021-11-06 19:54:55,842 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:55" (1/1) ... [2021-11-06 19:54:58,473 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 19:54:58,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 19:54:58,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 19:54:58,474 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 19:54:58,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:55" (1/1) ... [2021-11-06 19:54:58,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:55" (1/1) ... [2021-11-06 19:54:59,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:55" (1/1) ... [2021-11-06 19:54:59,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:55" (1/1) ... [2021-11-06 19:55:00,605 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:55" (1/1) ... [2021-11-06 19:55:01,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:55" (1/1) ... [2021-11-06 19:55:01,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:55" (1/1) ... [2021-11-06 19:55:01,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 19:55:01,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 19:55:01,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 19:55:01,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 19:55:01,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:55" (1/1) ... [2021-11-06 19:55:01,835 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 19:55:01,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 19:55:01,855 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 19:55:01,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-06 19:55:01,889 INFO L130 BoogieDeclarations]: Found specification of procedure enic_notify_timer [2021-11-06 19:55:01,890 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_notify_timer [2021-11-06 19:55:01,890 INFO L130 BoogieDeclarations]: Found specification of procedure enic_dev_open [2021-11-06 19:55:01,890 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_dev_open [2021-11-06 19:55:01,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_4 [2021-11-06 19:55:01,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_4 [2021-11-06 19:55:01,890 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-06 19:55:01,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_18 [2021-11-06 19:55:01,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_18 [2021-11-06 19:55:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure enic_probe [2021-11-06 19:55:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_probe [2021-11-06 19:55:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 19:55:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure enic_pp_preassociate_rr [2021-11-06 19:55:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_pp_preassociate_rr [2021-11-06 19:55:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 19:55:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 19:55:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 19:55:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-11-06 19:55:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-11-06 19:55:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_9_2 [2021-11-06 19:55:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_9_2 [2021-11-06 19:55:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 19:55:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_4_2 [2021-11-06 19:55:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_4_2 [2021-11-06 19:55:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-06 19:55:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-06 19:55:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 19:55:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 19:55:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-06 19:55:01,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-06 19:55:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure enic_dev_wait [2021-11-06 19:55:01,893 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_dev_wait [2021-11-06 19:55:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-06 19:55:01,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-06 19:55:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 19:55:01,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 19:55:01,894 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_rq_fill [2021-11-06 19:55:01,894 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_rq_fill [2021-11-06 19:55:01,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 19:55:01,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 19:55:01,894 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-06 19:55:01,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 19:55:01,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 19:55:01,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 19:55:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure enic_open [2021-11-06 19:55:01,895 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_open [2021-11-06 19:55:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 19:55:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure enic_pp_associate [2021-11-06 19:55:01,895 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_pp_associate [2021-11-06 19:55:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 19:55:01,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 19:55:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 20:08:36,218 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_pci_pci_instance_3_switch_break: call ULTIMATE.dealloc(ldv_pci_pci_instance_3_~#ldv_3_resource_pm_message~0.base, ldv_pci_pci_instance_3_~#ldv_3_resource_pm_message~0.offset);havoc ldv_pci_pci_instance_3_~#ldv_3_resource_pm_message~0.base, ldv_pci_pci_instance_3_~#ldv_3_resource_pm_message~0.offset; [2021-11-06 20:08:36,219 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 20:08:36,219 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L13115: #t~ret2533 := main_#res; [2021-11-06 20:08:36,220 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_16_returnLabel: main_#res := 0; [2021-11-06 20:08:39,686 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 20:08:39,686 INFO L299 CfgBuilder]: Removed 20392 assume(true) statements. [2021-11-06 20:08:39,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:08:39 BoogieIcfgContainer [2021-11-06 20:08:39,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 20:08:39,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 20:08:39,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 20:08:39,720 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 20:08:39,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:54:50" (1/3) ... [2021-11-06 20:08:39,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20bce6cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:08:39, skipping insertion in model container [2021-11-06 20:08:39,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:55" (2/3) ... [2021-11-06 20:08:39,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20bce6cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:08:39, skipping insertion in model container [2021-11-06 20:08:39,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:08:39" (3/3) ... [2021-11-06 20:08:39,722 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-usb-dev_drivers-net-ethernet-cisco-enic-enic.cil.i [2021-11-06 20:08:39,726 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 20:08:39,729 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-06 20:08:39,813 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 20:08:39,819 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 [2021-11-06 20:08:39,819 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-06 20:08:40,070 INFO L276 IsEmpty]: Start isEmpty. Operand has 27059 states, 27005 states have (on average 1.4480651731160896) internal successors, (39105), 27007 states have internal predecessors, (39105), 34 states have call successors, (34), 17 states have call predecessors, (34), 17 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2021-11-06 20:08:40,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-06 20:08:40,073 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:08:40,074 INFO L513 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] [2021-11-06 20:08:40,074 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 20:08:40,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:08:40,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1854207478, now seen corresponding path program 1 times [2021-11-06 20:08:40,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:08:40,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440007087] [2021-11-06 20:08:40,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:08:40,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:08:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:08:40,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:08:40,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:08:40,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440007087] [2021-11-06 20:08:40,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440007087] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:08:40,970 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:08:40,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 20:08:40,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659265156] [2021-11-06 20:08:40,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 20:08:40,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:08:40,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 20:08:40,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 20:08:41,027 INFO L87 Difference]: Start difference. First operand has 27059 states, 27005 states have (on average 1.4480651731160896) internal successors, (39105), 27007 states have internal predecessors, (39105), 34 states have call successors, (34), 17 states have call predecessors, (34), 17 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-11-06 20:08:42,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:08:42,042 INFO L93 Difference]: Finished difference Result 53920 states and 78064 transitions. [2021-11-06 20:08:42,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 20:08:42,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 22 [2021-11-06 20:08:42,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:08:42,230 INFO L225 Difference]: With dead ends: 53920 [2021-11-06 20:08:42,230 INFO L226 Difference]: Without dead ends: 26778 [2021-11-06 20:08:42,355 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 20:08:42,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26778 states. [2021-11-06 20:08:42,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26778 to 26778. [2021-11-06 20:08:43,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26778 states, 26726 states have (on average 1.439085534685325) internal successors, (38461), 26726 states have internal predecessors, (38461), 34 states have call successors, (34), 17 states have call predecessors, (34), 17 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2021-11-06 20:08:43,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26778 states to 26778 states and 38529 transitions. [2021-11-06 20:08:43,163 INFO L78 Accepts]: Start accepts. Automaton has 26778 states and 38529 transitions. Word has length 22 [2021-11-06 20:08:43,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:08:43,164 INFO L470 AbstractCegarLoop]: Abstraction has 26778 states and 38529 transitions. [2021-11-06 20:08:43,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-11-06 20:08:43,165 INFO L276 IsEmpty]: Start isEmpty. Operand 26778 states and 38529 transitions. [2021-11-06 20:08:43,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-06 20:08:43,170 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:08:43,170 INFO L513 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] [2021-11-06 20:08:43,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 20:08:43,171 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 20:08:43,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:08:43,173 INFO L85 PathProgramCache]: Analyzing trace with hash -73357645, now seen corresponding path program 1 times [2021-11-06 20:08:43,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:08:43,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059166551] [2021-11-06 20:08:43,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:08:43,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:08:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:08:43,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-06 20:08:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:08:43,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:08:43,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:08:43,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059166551] [2021-11-06 20:08:43,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059166551] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:08:43,845 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:08:43,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 20:08:43,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041001408] [2021-11-06 20:08:43,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 20:08:43,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:08:43,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 20:08:43,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 20:08:43,853 INFO L87 Difference]: Start difference. First operand 26778 states and 38529 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Killed by 15