./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_cisco.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_cisco.ko-entry_point.cil.out.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 aa96c32cec5c31a75c9cdd0122db38bdeb379765e4b6aca9c91d1bb4fedaed44 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 03:57:57,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 03:57:57,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 03:57:57,912 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 03:57:57,912 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 03:57:57,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 03:57:57,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 03:57:57,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 03:57:57,923 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 03:57:57,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 03:57:57,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 03:57:57,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 03:57:57,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 03:57:57,933 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 03:57:57,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 03:57:57,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 03:57:57,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 03:57:57,938 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 03:57:57,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 03:57:57,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 03:57:57,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 03:57:57,946 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 03:57:57,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 03:57:57,949 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 03:57:57,954 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 03:57:57,955 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 03:57:57,955 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 03:57:57,957 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 03:57:57,958 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 03:57:57,958 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 03:57:57,959 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 03:57:57,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 03:57:57,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 03:57:57,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 03:57:57,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 03:57:57,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 03:57:57,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 03:57:57,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 03:57:57,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 03:57:57,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 03:57:57,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 03:57:57,971 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 03:57:58,006 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 03:57:58,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 03:57:58,008 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 03:57:58,008 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 03:57:58,009 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 03:57:58,009 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 03:57:58,010 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 03:57:58,010 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 03:57:58,011 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 03:57:58,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 03:57:58,011 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 03:57:58,012 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 03:57:58,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 03:57:58,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 03:57:58,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 03:57:58,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 03:57:58,012 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 03:57:58,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 03:57:58,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 03:57:58,013 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 03:57:58,013 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 03:57:58,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:57:58,013 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 03:57:58,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 03:57:58,014 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 03:57:58,014 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 03:57:58,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 03:57:58,014 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 03:57:58,014 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 03:57:58,015 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 03:57:58,015 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa96c32cec5c31a75c9cdd0122db38bdeb379765e4b6aca9c91d1bb4fedaed44 [2021-12-28 03:57:58,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 03:57:58,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 03:57:58,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 03:57:58,323 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 03:57:58,323 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 03:57:58,324 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_cisco.ko-entry_point.cil.out.i [2021-12-28 03:57:58,378 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a5c2552f/6b69de463fd441cca008857692a8da8e/FLAGda954872e [2021-12-28 03:57:59,037 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 03:57:59,037 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_cisco.ko-entry_point.cil.out.i [2021-12-28 03:57:59,065 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a5c2552f/6b69de463fd441cca008857692a8da8e/FLAGda954872e [2021-12-28 03:57:59,363 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a5c2552f/6b69de463fd441cca008857692a8da8e [2021-12-28 03:57:59,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 03:57:59,366 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 03:57:59,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 03:57:59,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 03:57:59,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 03:57:59,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:57:59" (1/1) ... [2021-12-28 03:57:59,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f9cbeea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:57:59, skipping insertion in model container [2021-12-28 03:57:59,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:57:59" (1/1) ... [2021-12-28 03:57:59,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 03:57:59,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 03:58:00,104 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-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_cisco.ko-entry_point.cil.out.i[158033,158046] [2021-12-28 03:58:00,363 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:58:00,375 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 03:58:00,475 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-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_cisco.ko-entry_point.cil.out.i[158033,158046] [2021-12-28 03:58:00,554 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:58:00,593 INFO L208 MainTranslator]: Completed translation [2021-12-28 03:58:00,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:00 WrapperNode [2021-12-28 03:58:00,595 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 03:58:00,596 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 03:58:00,596 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 03:58:00,596 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 03:58:00,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:00" (1/1) ... [2021-12-28 03:58:00,634 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:00" (1/1) ... [2021-12-28 03:58:00,701 INFO L137 Inliner]: procedures = 146, calls = 357, calls flagged for inlining = 63, calls inlined = 60, statements flattened = 1425 [2021-12-28 03:58:00,701 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 03:58:00,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 03:58:00,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 03:58:00,702 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 03:58:00,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:00" (1/1) ... [2021-12-28 03:58:00,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:00" (1/1) ... [2021-12-28 03:58:00,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:00" (1/1) ... [2021-12-28 03:58:00,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:00" (1/1) ... [2021-12-28 03:58:00,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:00" (1/1) ... [2021-12-28 03:58:00,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:00" (1/1) ... [2021-12-28 03:58:00,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:00" (1/1) ... [2021-12-28 03:58:00,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 03:58:00,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 03:58:00,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 03:58:00,773 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 03:58:00,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:00" (1/1) ... [2021-12-28 03:58:00,778 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:58:00,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:58:00,803 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) [2021-12-28 03:58:00,805 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 [2021-12-28 03:58:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-28 03:58:00,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-28 03:58:00,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 03:58:00,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 03:58:00,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 03:58:00,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 03:58:00,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 03:58:00,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 03:58:00,849 INFO L130 BoogieDeclarations]: Found specification of procedure state [2021-12-28 03:58:00,849 INFO L138 BoogieDeclarations]: Found implementation of procedure state [2021-12-28 03:58:00,849 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2021-12-28 03:58:00,849 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2021-12-28 03:58:00,849 INFO L130 BoogieDeclarations]: Found specification of procedure cisco_ioctl [2021-12-28 03:58:00,850 INFO L138 BoogieDeclarations]: Found implementation of procedure cisco_ioctl [2021-12-28 03:58:00,850 INFO L130 BoogieDeclarations]: Found specification of procedure cisco_rx [2021-12-28 03:58:00,850 INFO L138 BoogieDeclarations]: Found implementation of procedure cisco_rx [2021-12-28 03:58:00,850 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-28 03:58:00,850 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-28 03:58:00,850 INFO L130 BoogieDeclarations]: Found specification of procedure cisco_type_trans [2021-12-28 03:58:00,850 INFO L138 BoogieDeclarations]: Found implementation of procedure cisco_type_trans [2021-12-28 03:58:00,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 03:58:00,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 03:58:00,851 INFO L130 BoogieDeclarations]: Found specification of procedure netif_dormant_on [2021-12-28 03:58:00,851 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_dormant_on [2021-12-28 03:58:00,851 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-12-28 03:58:00,851 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-12-28 03:58:00,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-12-28 03:58:00,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-12-28 03:58:00,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 03:58:00,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 03:58:00,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 03:58:00,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 03:58:00,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 03:58:00,852 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 03:58:00,852 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 03:58:00,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 03:58:00,853 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 03:58:00,853 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 03:58:00,853 INFO L130 BoogieDeclarations]: Found specification of procedure cisco_hard_header [2021-12-28 03:58:00,853 INFO L138 BoogieDeclarations]: Found implementation of procedure cisco_hard_header [2021-12-28 03:58:00,853 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-28 03:58:00,853 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-28 03:58:00,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 03:58:00,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 03:58:00,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 03:58:00,854 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-12-28 03:58:00,854 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-12-28 03:58:00,854 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-28 03:58:00,854 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2021-12-28 03:58:00,854 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2021-12-28 03:58:00,854 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-12-28 03:58:00,855 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-12-28 03:58:00,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 03:58:00,855 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-28 03:58:00,855 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-28 03:58:00,855 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 03:58:00,855 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 03:58:00,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 03:58:00,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 03:58:00,856 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-28 03:58:00,856 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-28 03:58:00,856 INFO L130 BoogieDeclarations]: Found specification of procedure cisco_keepalive_send [2021-12-28 03:58:00,856 INFO L138 BoogieDeclarations]: Found implementation of procedure cisco_keepalive_send [2021-12-28 03:58:00,856 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-28 03:58:00,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-28 03:58:00,856 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-28 03:58:00,857 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-28 03:58:00,857 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-28 03:58:00,857 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-28 03:58:00,857 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-28 03:58:00,857 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-28 03:58:00,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 03:58:00,857 INFO L130 BoogieDeclarations]: Found specification of procedure linkwatch_fire_event [2021-12-28 03:58:00,857 INFO L138 BoogieDeclarations]: Found implementation of procedure linkwatch_fire_event [2021-12-28 03:58:00,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 03:58:00,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-28 03:58:00,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-28 03:58:00,858 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-28 03:58:00,858 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-28 03:58:00,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 03:58:00,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 03:58:01,125 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 03:58:01,127 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 03:58:01,252 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 03:58:01,882 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 03:58:01,902 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 03:58:01,902 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 03:58:01,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:58:01 BoogieIcfgContainer [2021-12-28 03:58:01,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 03:58:01,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 03:58:01,906 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 03:58:01,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 03:58:01,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 03:57:59" (1/3) ... [2021-12-28 03:58:01,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc0c152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:58:01, skipping insertion in model container [2021-12-28 03:58:01,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:00" (2/3) ... [2021-12-28 03:58:01,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc0c152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:58:01, skipping insertion in model container [2021-12-28 03:58:01,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:58:01" (3/3) ... [2021-12-28 03:58:01,910 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_cisco.ko-entry_point.cil.out.i [2021-12-28 03:58:01,913 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 03:58:01,913 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 03:58:01,946 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 03:58:01,964 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 03:58:01,964 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 03:58:01,985 INFO L276 IsEmpty]: Start isEmpty. Operand has 488 states, 358 states have (on average 1.3715083798882681) internal successors, (491), 371 states have internal predecessors, (491), 97 states have call successors, (97), 32 states have call predecessors, (97), 31 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2021-12-28 03:58:01,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-28 03:58:01,992 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:58:01,993 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 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] [2021-12-28 03:58:01,993 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:58:01,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:58:01,998 INFO L85 PathProgramCache]: Analyzing trace with hash 742124414, now seen corresponding path program 1 times [2021-12-28 03:58:02,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:58:02,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701022871] [2021-12-28 03:58:02,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:58:02,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:58:02,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:02,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:58:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:02,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:58:02,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:02,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 03:58:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:02,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 03:58:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:02,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 03:58:02,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:02,286 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-28 03:58:02,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:58:02,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701022871] [2021-12-28 03:58:02,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701022871] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:58:02,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:58:02,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:58:02,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093224577] [2021-12-28 03:58:02,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:58:02,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:58:02,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:58:02,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:58:02,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:58:02,311 INFO L87 Difference]: Start difference. First operand has 488 states, 358 states have (on average 1.3715083798882681) internal successors, (491), 371 states have internal predecessors, (491), 97 states have call successors, (97), 32 states have call predecessors, (97), 31 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-28 03:58:03,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:58:03,509 INFO L93 Difference]: Finished difference Result 1541 states and 2218 transitions. [2021-12-28 03:58:03,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:58:03,511 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 47 [2021-12-28 03:58:03,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:58:03,528 INFO L225 Difference]: With dead ends: 1541 [2021-12-28 03:58:03,528 INFO L226 Difference]: Without dead ends: 1042 [2021-12-28 03:58:03,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:58:03,540 INFO L933 BasicCegarLoop]: 705 mSDtfsCounter, 1084 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 1456 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-28 03:58:03,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1162 Valid, 1456 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-28 03:58:03,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2021-12-28 03:58:03,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 924. [2021-12-28 03:58:03,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 685 states have (on average 1.3562043795620438) internal successors, (929), 699 states have internal predecessors, (929), 178 states have call successors, (178), 61 states have call predecessors, (178), 60 states have return successors, (177), 177 states have call predecessors, (177), 177 states have call successors, (177) [2021-12-28 03:58:03,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1284 transitions. [2021-12-28 03:58:03,663 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1284 transitions. Word has length 47 [2021-12-28 03:58:03,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:58:03,664 INFO L470 AbstractCegarLoop]: Abstraction has 924 states and 1284 transitions. [2021-12-28 03:58:03,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-28 03:58:03,664 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1284 transitions. [2021-12-28 03:58:03,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-28 03:58:03,667 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:58:03,668 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 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] [2021-12-28 03:58:03,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 03:58:03,668 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:58:03,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:58:03,669 INFO L85 PathProgramCache]: Analyzing trace with hash -2097093995, now seen corresponding path program 1 times [2021-12-28 03:58:03,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:58:03,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936826038] [2021-12-28 03:58:03,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:58:03,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:58:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:03,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:58:03,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:03,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:58:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:03,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 03:58:03,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:03,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 03:58:03,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:03,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 03:58:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:03,774 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-28 03:58:03,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:58:03,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936826038] [2021-12-28 03:58:03,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936826038] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:58:03,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:58:03,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 03:58:03,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224108525] [2021-12-28 03:58:03,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:58:03,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 03:58:03,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:58:03,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 03:58:03,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:58:03,778 INFO L87 Difference]: Start difference. First operand 924 states and 1284 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-28 03:58:04,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:58:04,474 INFO L93 Difference]: Finished difference Result 1951 states and 2732 transitions. [2021-12-28 03:58:04,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:58:04,475 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 50 [2021-12-28 03:58:04,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:58:04,480 INFO L225 Difference]: With dead ends: 1951 [2021-12-28 03:58:04,480 INFO L226 Difference]: Without dead ends: 1041 [2021-12-28 03:58:04,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-28 03:58:04,483 INFO L933 BasicCegarLoop]: 740 mSDtfsCounter, 987 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-28 03:58:04,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1049 Valid, 1569 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-28 03:58:04,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2021-12-28 03:58:04,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 923. [2021-12-28 03:58:04,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 684 states have (on average 1.3523391812865497) internal successors, (925), 698 states have internal predecessors, (925), 178 states have call successors, (178), 61 states have call predecessors, (178), 60 states have return successors, (177), 177 states have call predecessors, (177), 177 states have call successors, (177) [2021-12-28 03:58:04,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1280 transitions. [2021-12-28 03:58:04,517 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1280 transitions. Word has length 50 [2021-12-28 03:58:04,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:58:04,517 INFO L470 AbstractCegarLoop]: Abstraction has 923 states and 1280 transitions. [2021-12-28 03:58:04,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-28 03:58:04,518 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1280 transitions. [2021-12-28 03:58:04,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-28 03:58:04,521 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:58:04,521 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 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] [2021-12-28 03:58:04,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 03:58:04,521 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:58:04,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:58:04,522 INFO L85 PathProgramCache]: Analyzing trace with hash 171125928, now seen corresponding path program 1 times [2021-12-28 03:58:04,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:58:04,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28110522] [2021-12-28 03:58:04,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:58:04,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:58:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:04,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:58:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:04,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:58:04,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:04,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 03:58:04,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:04,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 03:58:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:04,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 03:58:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:04,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 03:58:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:04,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 03:58:04,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:04,659 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-12-28 03:58:04,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:58:04,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28110522] [2021-12-28 03:58:04,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28110522] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:58:04,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:58:04,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:58:04,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785962303] [2021-12-28 03:58:04,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:58:04,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:58:04,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:58:04,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:58:04,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:58:04,663 INFO L87 Difference]: Start difference. First operand 923 states and 1280 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-28 03:58:05,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:58:05,728 INFO L93 Difference]: Finished difference Result 2974 states and 4185 transitions. [2021-12-28 03:58:05,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 03:58:05,729 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2021-12-28 03:58:05,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:58:05,740 INFO L225 Difference]: With dead ends: 2974 [2021-12-28 03:58:05,741 INFO L226 Difference]: Without dead ends: 2060 [2021-12-28 03:58:05,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-12-28 03:58:05,760 INFO L933 BasicCegarLoop]: 691 mSDtfsCounter, 1091 mSDsluCounter, 1740 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 2431 SdHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-28 03:58:05,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1173 Valid, 2431 Invalid, 1273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-28 03:58:05,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2060 states. [2021-12-28 03:58:06,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2060 to 1924. [2021-12-28 03:58:06,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1924 states, 1437 states have (on average 1.3625608907446067) internal successors, (1958), 1469 states have internal predecessors, (1958), 358 states have call successors, (358), 121 states have call predecessors, (358), 128 states have return successors, (381), 363 states have call predecessors, (381), 357 states have call successors, (381) [2021-12-28 03:58:06,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1924 states to 1924 states and 2697 transitions. [2021-12-28 03:58:06,130 INFO L78 Accepts]: Start accepts. Automaton has 1924 states and 2697 transitions. Word has length 71 [2021-12-28 03:58:06,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:58:06,131 INFO L470 AbstractCegarLoop]: Abstraction has 1924 states and 2697 transitions. [2021-12-28 03:58:06,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-28 03:58:06,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1924 states and 2697 transitions. [2021-12-28 03:58:06,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-12-28 03:58:06,161 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:58:06,161 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:58:06,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 03:58:06,162 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:58:06,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:58:06,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1729160309, now seen corresponding path program 1 times [2021-12-28 03:58:06,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:58:06,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310458587] [2021-12-28 03:58:06,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:58:06,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:58:06,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:06,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:58:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:06,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:58:06,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:06,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 03:58:06,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:06,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 03:58:06,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:06,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 03:58:06,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:06,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-28 03:58:06,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:06,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-28 03:58:06,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:06,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-28 03:58:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:06,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-28 03:58:06,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:06,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 03:58:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:06,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 03:58:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:07,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:58:07,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:07,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:58:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:07,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 03:58:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:07,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 03:58:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:07,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 03:58:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:07,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 03:58:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:07,336 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2021-12-28 03:58:07,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:58:07,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310458587] [2021-12-28 03:58:07,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310458587] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:58:07,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566861290] [2021-12-28 03:58:07,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:58:07,339 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:58:07,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:58:07,342 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 03:58:07,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-28 03:58:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:07,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 961 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-28 03:58:07,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:58:07,859 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-28 03:58:07,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 03:58:07,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566861290] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:58:07,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 03:58:07,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7 [2021-12-28 03:58:07,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233360145] [2021-12-28 03:58:07,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:58:07,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 03:58:07,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:58:07,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 03:58:07,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-28 03:58:07,861 INFO L87 Difference]: Start difference. First operand 1924 states and 2697 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-28 03:58:07,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:58:07,917 INFO L93 Difference]: Finished difference Result 3838 states and 5422 transitions. [2021-12-28 03:58:07,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:58:07,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 141 [2021-12-28 03:58:07,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:58:07,925 INFO L225 Difference]: With dead ends: 3838 [2021-12-28 03:58:07,925 INFO L226 Difference]: Without dead ends: 1928 [2021-12-28 03:58:07,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 173 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-28 03:58:07,932 INFO L933 BasicCegarLoop]: 658 mSDtfsCounter, 2 mSDsluCounter, 1969 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2627 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 03:58:07,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 2627 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 03:58:07,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2021-12-28 03:58:07,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1924. [2021-12-28 03:58:07,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1924 states, 1433 states have (on average 1.357990230286113) internal successors, (1946), 1467 states have internal predecessors, (1946), 358 states have call successors, (358), 121 states have call predecessors, (358), 132 states have return successors, (392), 365 states have call predecessors, (392), 357 states have call successors, (392) [2021-12-28 03:58:07,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1924 states to 1924 states and 2696 transitions. [2021-12-28 03:58:07,985 INFO L78 Accepts]: Start accepts. Automaton has 1924 states and 2696 transitions. Word has length 141 [2021-12-28 03:58:07,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:58:07,986 INFO L470 AbstractCegarLoop]: Abstraction has 1924 states and 2696 transitions. [2021-12-28 03:58:07,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-28 03:58:07,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1924 states and 2696 transitions. [2021-12-28 03:58:07,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-28 03:58:07,991 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:58:07,991 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2021-12-28 03:58:08,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-28 03:58:08,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:58:08,220 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:58:08,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:58:08,220 INFO L85 PathProgramCache]: Analyzing trace with hash 568539780, now seen corresponding path program 1 times [2021-12-28 03:58:08,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:58:08,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053925243] [2021-12-28 03:58:08,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:58:08,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:58:08,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:08,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:58:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:08,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:58:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:08,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 03:58:08,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:08,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 03:58:08,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:08,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 03:58:08,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:08,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 03:58:08,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:08,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 03:58:08,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:08,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 03:58:08,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:08,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 03:58:08,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:08,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 03:58:08,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:08,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 03:58:08,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:08,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 03:58:08,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:08,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-28 03:58:08,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:08,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:58:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:08,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:58:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:08,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 03:58:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:08,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-28 03:58:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:08,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-28 03:58:08,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:08,679 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-28 03:58:08,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:58:08,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053925243] [2021-12-28 03:58:08,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053925243] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:58:08,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:58:08,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-12-28 03:58:08,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763227685] [2021-12-28 03:58:08,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:58:08,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-28 03:58:08,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:58:08,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-28 03:58:08,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2021-12-28 03:58:08,682 INFO L87 Difference]: Start difference. First operand 1924 states and 2696 transitions. Second operand has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 11 states have internal predecessors, (88), 3 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (18), 5 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-28 03:58:10,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:58:10,376 INFO L93 Difference]: Finished difference Result 3994 states and 5630 transitions. [2021-12-28 03:58:10,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-28 03:58:10,376 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 11 states have internal predecessors, (88), 3 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (18), 5 states have call predecessors, (18), 3 states have call successors, (18) Word has length 148 [2021-12-28 03:58:10,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:58:10,386 INFO L225 Difference]: With dead ends: 3994 [2021-12-28 03:58:10,386 INFO L226 Difference]: Without dead ends: 2084 [2021-12-28 03:58:10,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2021-12-28 03:58:10,397 INFO L933 BasicCegarLoop]: 620 mSDtfsCounter, 511 mSDsluCounter, 5469 mSDsCounter, 0 mSdLazyCounter, 2529 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 6089 SdHoareTripleChecker+Invalid, 2757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 2529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-28 03:58:10,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [532 Valid, 6089 Invalid, 2757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 2529 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-28 03:58:10,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2084 states. [2021-12-28 03:58:10,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2084 to 1954. [2021-12-28 03:58:10,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1954 states, 1455 states have (on average 1.3484536082474228) internal successors, (1962), 1489 states have internal predecessors, (1962), 364 states have call successors, (364), 121 states have call predecessors, (364), 134 states have return successors, (402), 373 states have call predecessors, (402), 363 states have call successors, (402) [2021-12-28 03:58:10,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2728 transitions. [2021-12-28 03:58:10,495 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2728 transitions. Word has length 148 [2021-12-28 03:58:10,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:58:10,498 INFO L470 AbstractCegarLoop]: Abstraction has 1954 states and 2728 transitions. [2021-12-28 03:58:10,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 11 states have internal predecessors, (88), 3 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (18), 5 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-28 03:58:10,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2728 transitions. [2021-12-28 03:58:10,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-12-28 03:58:10,503 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:58:10,503 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:58:10,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 03:58:10,504 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:58:10,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:58:10,504 INFO L85 PathProgramCache]: Analyzing trace with hash -799997024, now seen corresponding path program 1 times [2021-12-28 03:58:10,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:58:10,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074199938] [2021-12-28 03:58:10,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:58:10,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:58:10,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 03:58:10,733 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 03:58:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 03:58:11,035 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 03:58:11,051 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-28 03:58:11,052 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-28 03:58:11,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 03:58:11,057 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-12-28 03:58:11,060 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-28 03:58:11,138 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:11,139 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:11,139 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:11,139 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:11,140 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:11,140 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:11,140 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:11,140 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:11,140 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:11,140 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:11,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 03:58:11 BoogieIcfgContainer [2021-12-28 03:58:11,263 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-28 03:58:11,264 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 03:58:11,264 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 03:58:11,264 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 03:58:11,264 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:58:01" (3/4) ... [2021-12-28 03:58:11,266 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-28 03:58:11,266 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 03:58:11,267 INFO L158 Benchmark]: Toolchain (without parser) took 11900.11ms. Allocated memory was 67.1MB in the beginning and 260.0MB in the end (delta: 192.9MB). Free memory was 40.2MB in the beginning and 132.6MB in the end (delta: -92.4MB). Peak memory consumption was 100.1MB. Max. memory is 16.1GB. [2021-12-28 03:58:11,267 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 67.1MB. Free memory was 49.8MB in the beginning and 49.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 03:58:11,267 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1226.84ms. Allocated memory was 67.1MB in the beginning and 96.5MB in the end (delta: 29.4MB). Free memory was 40.0MB in the beginning and 52.5MB in the end (delta: -12.5MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2021-12-28 03:58:11,267 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.69ms. Allocated memory is still 96.5MB. Free memory was 52.5MB in the beginning and 44.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-28 03:58:11,268 INFO L158 Benchmark]: Boogie Preprocessor took 70.13ms. Allocated memory is still 96.5MB. Free memory was 44.1MB in the beginning and 36.2MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-28 03:58:11,268 INFO L158 Benchmark]: RCFGBuilder took 1131.93ms. Allocated memory was 96.5MB in the beginning and 130.0MB in the end (delta: 33.6MB). Free memory was 36.2MB in the beginning and 71.0MB in the end (delta: -34.8MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2021-12-28 03:58:11,268 INFO L158 Benchmark]: TraceAbstraction took 9357.70ms. Allocated memory was 130.0MB in the beginning and 260.0MB in the end (delta: 130.0MB). Free memory was 70.9MB in the beginning and 133.6MB in the end (delta: -62.8MB). Peak memory consumption was 134.4MB. Max. memory is 16.1GB. [2021-12-28 03:58:11,268 INFO L158 Benchmark]: Witness Printer took 2.58ms. Allocated memory is still 260.0MB. Free memory was 133.6MB in the beginning and 132.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 03:58:11,270 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 67.1MB. Free memory was 49.8MB in the beginning and 49.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1226.84ms. Allocated memory was 67.1MB in the beginning and 96.5MB in the end (delta: 29.4MB). Free memory was 40.0MB in the beginning and 52.5MB in the end (delta: -12.5MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.69ms. Allocated memory is still 96.5MB. Free memory was 52.5MB in the beginning and 44.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.13ms. Allocated memory is still 96.5MB. Free memory was 44.1MB in the beginning and 36.2MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1131.93ms. Allocated memory was 96.5MB in the beginning and 130.0MB in the end (delta: 33.6MB). Free memory was 36.2MB in the beginning and 71.0MB in the end (delta: -34.8MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. * TraceAbstraction took 9357.70ms. Allocated memory was 130.0MB in the beginning and 260.0MB in the end (delta: 130.0MB). Free memory was 70.9MB in the beginning and 133.6MB in the end (delta: -62.8MB). Peak memory consumption was 134.4MB. Max. memory is 16.1GB. * Witness Printer took 2.58ms. Allocated memory is still 260.0MB. Free memory was 133.6MB in the beginning and 132.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 5554]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 5123. Possible FailurePath: [L5577] int LDV_IN_INTERRUPT = 1; [L5578] struct sk_buff *proto_group1 ; [L5579] int ldv_state_variable_0 ; [L5580] int ldv_state_variable_3 ; [L5581] int ldv_timer_state_1 = 0; [L5582] int ldv_state_variable_2 ; [L5583] struct net_device *proto_group0 ; [L5584] int ref_cnt ; [L5585] int ldv_state_variable_1 ; [L5586] struct timer_list *ldv_timer_list_1 ; [L5964-L5966] static struct hdlc_proto proto = {0, 0, & cisco_start, & cisco_stop, 0, & cisco_ioctl, & cisco_type_trans, & cisco_rx, 0, & __this_module, 0}; [L5967] static struct header_ops const cisco_header_ops = {& cisco_hard_header, 0, 0, 0, 0}; [L6078] int ldv_retval_0 ; [L6374] Element set_impl[15] ; [L6375] int last_index = 0; [L6509] Set LDV_SKBS ; VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L6142] struct ifreq *ldvarg0 ; [L6143] void *tmp ; [L6144] unsigned int ldvarg1 ; [L6145] unsigned int tmp___0 ; [L6146] unsigned short ldvarg4 ; [L6147] unsigned short tmp___1 ; [L6148] struct sk_buff *ldvarg3 ; [L6149] void *tmp___2 ; [L6150] struct net_device *ldvarg5 ; [L6151] void *tmp___3 ; [L6152] void *ldvarg2 ; [L6153] void *tmp___4 ; [L6154] void *ldvarg6 ; [L6155] void *tmp___5 ; [L6156] int tmp___6 ; [L6157] int tmp___7 ; [L6158] int tmp___8 ; [L6159] int tmp___9 ; VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L6161] CALL, EXPR ldv_zalloc(40UL) VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5519] void *p ; [L5520] void *tmp ; [L5521] int tmp___0 ; [L5523] tmp___0 = __VERIFIER_nondet_int() [L5524] COND TRUE tmp___0 != 0 [L5525] return ((void *)0); VAL [\old(size)=40, \result={0:0}, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=40, tmp___0=-2] [L6161] RET, EXPR ldv_zalloc(40UL) VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(40UL)={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L6161] tmp = ldv_zalloc(40UL) [L6162] ldvarg0 = (struct ifreq *)tmp [L6163] tmp___0 = __VERIFIER_nondet_uint() [L6164] ldvarg1 = tmp___0 [L6165] tmp___1 = __VERIFIER_nondet_ushort() [L6166] ldvarg4 = tmp___1 VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1=4294885811, ldvarg4=49597, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=4294885811, tmp___1=49597] [L6167] CALL, EXPR ldv_zalloc(232UL) VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5519] void *p ; [L5520] void *tmp ; [L5521] int tmp___0 ; [L5523] tmp___0 = __VERIFIER_nondet_int() [L5524] COND TRUE tmp___0 != 0 [L5525] return ((void *)0); VAL [\old(size)=232, \result={0:0}, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=232, tmp___0=-3] [L6167] RET, EXPR ldv_zalloc(232UL) VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(232UL)={0:0}, ldvarg0={0:0}, ldvarg1=4294885811, ldvarg4=49597, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=4294885811, tmp___1=49597] [L6167] tmp___2 = ldv_zalloc(232UL) [L6168] ldvarg3 = (struct sk_buff *)tmp___2 VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1=4294885811, ldvarg3={0:0}, ldvarg4=49597, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=4294885811, tmp___1=49597, tmp___2={0:0}] [L6169] CALL, EXPR ldv_zalloc(3264UL) VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5519] void *p ; [L5520] void *tmp ; [L5521] int tmp___0 ; [L5523] tmp___0 = __VERIFIER_nondet_int() [L5524] COND TRUE tmp___0 != 0 [L5525] return ((void *)0); VAL [\old(size)=3264, \result={0:0}, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=3264, tmp___0=-5] [L6169] RET, EXPR ldv_zalloc(3264UL) VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(3264UL)={0:0}, ldvarg0={0:0}, ldvarg1=4294885811, ldvarg3={0:0}, ldvarg4=49597, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=4294885811, tmp___1=49597, tmp___2={0:0}] [L6169] tmp___3 = ldv_zalloc(3264UL) [L6170] ldvarg5 = (struct net_device *)tmp___3 VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1=4294885811, ldvarg3={0:0}, ldvarg4=49597, ldvarg5={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=4294885811, tmp___1=49597, tmp___2={0:0}, tmp___3={0:0}] [L6171] CALL, EXPR ldv_zalloc(1UL) VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5519] void *p ; [L5520] void *tmp ; [L5521] int tmp___0 ; [L5523] tmp___0 = __VERIFIER_nondet_int() [L5524] COND TRUE tmp___0 != 0 [L5525] return ((void *)0); VAL [\old(size)=1, \result={0:0}, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=1, tmp___0=-6] [L6171] RET, EXPR ldv_zalloc(1UL) VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(1UL)={0:0}, ldvarg0={0:0}, ldvarg1=4294885811, ldvarg3={0:0}, ldvarg4=49597, ldvarg5={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=4294885811, tmp___1=49597, tmp___2={0:0}, tmp___3={0:0}] [L6171] tmp___4 = ldv_zalloc(1UL) [L6172] ldvarg2 = tmp___4 VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1=4294885811, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=49597, ldvarg5={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=4294885811, tmp___1=49597, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}] [L6173] CALL, EXPR ldv_zalloc(1UL) VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5519] void *p ; [L5520] void *tmp ; [L5521] int tmp___0 ; [L5523] tmp___0 = __VERIFIER_nondet_int() [L5524] COND TRUE tmp___0 != 0 [L5525] return ((void *)0); VAL [\old(size)=1, \result={0:0}, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=1, tmp___0=-7] [L6173] RET, EXPR ldv_zalloc(1UL) VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(1UL)={0:0}, ldvarg0={0:0}, ldvarg1=4294885811, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=49597, ldvarg5={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=4294885811, tmp___1=49597, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}] [L6173] tmp___5 = ldv_zalloc(1UL) [L6174] ldvarg6 = tmp___5 [L6175] CALL ldv_initialize() [L6528] CALL ldv_set_init(LDV_SKBS) [L6380] set = set_impl [L6381] last_index = 0 VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set={0:0}, set={18:0}, set_impl={18:0}] [L6528] RET ldv_set_init(LDV_SKBS) [L6175] RET ldv_initialize() [L6176] ldv_state_variable_1 = 1 [L6177] ref_cnt = 0 [L6178] ldv_state_variable_0 = 1 [L6179] ldv_state_variable_3 = 0 [L6180] ldv_state_variable_2 = 0 VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1=4294885811, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=49597, ldvarg5={0:0}, ldvarg6={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=4294885811, tmp___1=49597, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}, tmp___5={0:0}] [L6182] tmp___6 = __VERIFIER_nondet_int() [L6184] case 0: [L6190] case 1: VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1=4294885811, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=49597, ldvarg5={0:0}, ldvarg6={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=4294885811, tmp___1=49597, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}, tmp___5={0:0}, tmp___6=1] [L6191] COND TRUE ldv_state_variable_0 != 0 [L6192] tmp___7 = __VERIFIER_nondet_int() [L6194] case 0: [L6202] case 1: VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1=4294885811, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=49597, ldvarg5={0:0}, ldvarg6={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=4294885811, tmp___1=49597, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}, tmp___5={0:0}, tmp___6=1, tmp___7=1] [L6203] COND TRUE ldv_state_variable_0 == 1 [L6204] CALL, EXPR mod_init() [L6067] FCALL register_hdlc_protocol(& proto) [L6068] return (0); VAL [\result=0, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L6204] RET, EXPR mod_init() [L6204] ldv_retval_0 = mod_init() [L6205] COND TRUE ldv_retval_0 == 0 [L6206] ldv_state_variable_0 = 3 [L6207] ldv_state_variable_2 = 1 [L6208] ldv_state_variable_3 = 1 [L6209] CALL ldv_initialize_hdlc_proto_3() [L6101] void *tmp ; [L6102] void *tmp___0 ; VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L6104] CALL, EXPR ldv_zalloc(232UL) VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5519] void *p ; [L5520] void *tmp ; [L5521] int tmp___0 ; [L5523] tmp___0 = __VERIFIER_nondet_int() [L5524] COND TRUE tmp___0 != 0 [L5525] return ((void *)0); VAL [\old(size)=232, \result={0:0}, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=232, tmp___0=-9] [L6104] RET, EXPR ldv_zalloc(232UL) VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(232UL)={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L6104] tmp = ldv_zalloc(232UL) [L6105] proto_group1 = (struct sk_buff *)tmp VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}] [L6106] CALL, EXPR ldv_zalloc(3264UL) VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5519] void *p ; [L5520] void *tmp ; [L5521] int tmp___0 ; [L5523] tmp___0 = __VERIFIER_nondet_int() [L5524] COND TRUE tmp___0 != 0 [L5525] return ((void *)0); VAL [\old(size)=3264, \result={0:0}, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=3264, tmp___0=-10] [L6106] RET, EXPR ldv_zalloc(3264UL) VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(3264UL)={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}] [L6106] tmp___0 = ldv_zalloc(3264UL) [L6107] proto_group0 = (struct net_device *)tmp___0 VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0={0:0}] [L6209] RET ldv_initialize_hdlc_proto_3() [L6212] COND FALSE !(ldv_retval_0 != 0) VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1=4294885811, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=49597, ldvarg5={0:0}, ldvarg6={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=4294885811, tmp___1=49597, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}, tmp___5={0:0}, tmp___6=1, tmp___7=1] [L6182] tmp___6 = __VERIFIER_nondet_int() [L6184] case 0: VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1=4294885811, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=49597, ldvarg5={0:0}, ldvarg6={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=4294885811, tmp___1=49597, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}, tmp___5={0:0}, tmp___6=0, tmp___7=1] [L6185] COND TRUE ldv_state_variable_1 != 0 [L6186] CALL choose_timer_1(ldv_timer_list_1) [L6114] LDV_IN_INTERRUPT = 2 [L6115] EXPR timer->data [L6115] EXPR timer->function [L6115] CALL (*(timer->function))(timer->data) [L5877] struct net_device *dev ; [L5878] hdlc_device *hdlc ; [L5879] struct hdlc_device *tmp ; [L5880] struct cisco_state *st ; [L5881] struct cisco_state *tmp___0 ; [L5882] __u32 tmp___1 ; [L5883] __u32 tmp___2 ; [L5885] dev = (struct net_device *)arg VAL [\old(arg)=18446744073709548352, __this_module={1383505805528216371118518:1383505805528216371118536}, arg=18446744073709548352, cisco_header_ops={17:0}, dev={0:-3264}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5886] CALL, EXPR dev_to_hdlc(dev) VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5638] void *tmp ; [L5640] CALL, EXPR netdev_priv((struct net_device const *)dev) [L5595] return ((void *)dev + 3264U); VAL [\result={0:0}, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, dev={0:-3264}, dev={0:-3264}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5640] RET, EXPR netdev_priv((struct net_device const *)dev) [L5640] tmp = netdev_priv((struct net_device const *)dev) [L5641] return ((struct hdlc_device *)tmp); VAL [\result={0:0}, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, dev={0:-3264}, dev={0:-3264}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}] [L5886] RET, EXPR dev_to_hdlc(dev) VAL [\old(arg)=18446744073709548352, __this_module={1383505805528216371118518:1383505805528216371118536}, arg=18446744073709548352, cisco_header_ops={17:0}, dev={0:-3264}, dev_to_hdlc(dev)={0:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5886] tmp = dev_to_hdlc(dev) [L5887] hdlc = tmp VAL [\old(arg)=18446744073709548352, __this_module={1383505805528216371118518:1383505805528216371118536}, arg=18446744073709548352, cisco_header_ops={17:0}, dev={0:-3264}, hdlc={0:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}] [L5888] CALL, EXPR state(hdlc) VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, hdlc={0:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5670] EXPR hdlc->state [L5670] return ((struct cisco_state *)hdlc->state); [L5888] RET, EXPR state(hdlc) VAL [\old(arg)=18446744073709548352, __this_module={1383505805528216371118518:1383505805528216371118536}, arg=18446744073709548352, cisco_header_ops={17:0}, dev={0:-3264}, hdlc={0:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, state(hdlc)={18:-212}, tmp={0:0}] [L5888] tmp___0 = state(hdlc) [L5889] st = tmp___0 VAL [\old(arg)=18446744073709548352, __this_module={1383505805528216371118518:1383505805528216371118536}, arg=18446744073709548352, cisco_header_ops={17:0}, dev={0:-3264}, hdlc={0:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, st={18:-212}, tmp={0:0}, tmp___0={18:-212}] [L5890] CALL spin_lock(& st->lock) VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5263] FCALL _raw_spin_lock(& lock->ldv_6338.rlock) [L5890] RET spin_lock(& st->lock) VAL [\old(arg)=18446744073709548352, __this_module={1383505805528216371118518:1383505805528216371118536}, arg=18446744073709548352, cisco_header_ops={17:0}, dev={0:-3264}, hdlc={0:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, st={18:-212}, tmp={0:0}, tmp___0={18:-212}] [L5891] EXPR st->up [L5891] st->up != 0 && (long )((st->last_poll + (unsigned long )(st->settings.timeout * 250U)) - (unsigned long )jiffies) < 0L [L5891] EXPR st->last_poll [L5891] EXPR st->settings.timeout [L5891] st->up != 0 && (long )((st->last_poll + (unsigned long )(st->settings.timeout * 250U)) - (unsigned long )jiffies) < 0L VAL [\old(arg)=18446744073709548352, __this_module={1383505805528216371118518:1383505805528216371118536}, arg=18446744073709548352, cisco_header_ops={17:0}, dev={0:-3264}, hdlc={0:0}, jiffies=18446744073709476616, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, st={18:-212}, st->last_poll=1383505805528216371118500, st->settings.timeout=26, st->up=1383505805528216371118511, st->up != 0 && (long )((st->last_poll + (unsigned long )(st->settings.timeout * 250U)) - (unsigned long )jiffies) < 0L=0, tmp={0:0}, tmp___0={18:-212}] [L5891] COND FALSE !(st->up != 0 && (long )((st->last_poll + (unsigned long )(st->settings.timeout * 250U)) - (unsigned long )jiffies) < 0L) [L5897] EXPR st->rxseq VAL [\old(arg)=18446744073709548352, __this_module={1383505805528216371118518:1383505805528216371118536}, arg=18446744073709548352, cisco_header_ops={17:0}, dev={0:-3264}, hdlc={0:0}, jiffies=18446744073709476616, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, st={18:-212}, st->rxseq=1383505805528216371118506, tmp={0:0}, tmp___0={18:-212}] [L5897] CALL, EXPR __fswab32(st->rxseq) VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5128] __u32 tmp ; [L5130] CALL, EXPR __arch_swab32(val) [L5117] return (val); VAL [\old(val)=1383505805528216371118506, \result=1383505805528216371118506, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, val=1383505805528216371118506] [L5130] RET, EXPR __arch_swab32(val) [L5130] tmp = __arch_swab32(val) [L5131] return (tmp); VAL [\old(val)=1383505805528216371118506, \result=1383505805528216371118506, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp=4294885802, val=1383505805528216371118506] [L5897] RET, EXPR __fswab32(st->rxseq) VAL [\old(arg)=18446744073709548352, __fswab32(st->rxseq)=1383505805528216371118506, __this_module={1383505805528216371118518:1383505805528216371118536}, arg=18446744073709548352, cisco_header_ops={17:0}, dev={0:-3264}, hdlc={0:0}, jiffies=18446744073709476616, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, st={18:-212}, st->rxseq=1383505805528216371118506, tmp={0:0}, tmp___0={18:-212}] [L5897] tmp___1 = __fswab32(st->rxseq) [L5898] EXPR st->txseq [L5898] st->txseq = st->txseq + 1U [L5899] EXPR st->txseq VAL [\old(arg)=18446744073709548352, __this_module={1383505805528216371118518:1383505805528216371118536}, arg=18446744073709548352, cisco_header_ops={17:0}, dev={0:-3264}, hdlc={0:0}, jiffies=18446744073709476616, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, st={18:-212}, st->txseq=-16, tmp={0:0}, tmp___0={18:-212}, tmp___1=4294885802] [L5899] CALL, EXPR __fswab32(st->txseq) VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5128] __u32 tmp ; [L5130] CALL, EXPR __arch_swab32(val) [L5117] return (val); VAL [\old(val)=-16, \result=-16, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, val=-16] [L5130] RET, EXPR __arch_swab32(val) [L5130] tmp = __arch_swab32(val) [L5131] return (tmp); VAL [\old(val)=-16, \result=-16, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp=4294967280, val=-16] [L5899] RET, EXPR __fswab32(st->txseq) VAL [\old(arg)=18446744073709548352, __fswab32(st->txseq)=-16, __this_module={1383505805528216371118518:1383505805528216371118536}, arg=18446744073709548352, cisco_header_ops={17:0}, dev={0:-3264}, hdlc={0:0}, jiffies=18446744073709476616, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, st={18:-212}, st->txseq=-16, tmp={0:0}, tmp___0={18:-212}, tmp___1=4294885802] [L5899] tmp___2 = __fswab32(st->txseq) [L5900] CALL cisco_keepalive_send(dev, 2U, tmp___2, tmp___1) VAL [\old(last_index)=0, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5695] struct sk_buff *skb ; [L5696] struct cisco_packet *data ; [L5697] __u32 tmp ; [L5698] __u32 tmp___0 ; [L5700] CALL, EXPR ldv_dev_alloc_skb_12(22U) [L6356] struct sk_buff *tmp ; VAL [\old(last_index)=0, \old(length)=22, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, length=22, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L6358] CALL, EXPR ldv_skb_alloc() VAL [\old(last_index)=0, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L6512] void *skb ; [L6513] void *tmp___7 ; VAL [\old(last_index)=0, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L6515] CALL, EXPR ldv_zalloc(sizeof(struct sk_buff___0 )) VAL [\old(last_index)=0, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5519] void *p ; [L5520] void *tmp ; [L5521] int tmp___0 ; [L5523] tmp___0 = __VERIFIER_nondet_int() [L5524] COND FALSE !(tmp___0 != 0) [L5527] EXPR, FCALL calloc(1UL, size) [L5527] tmp = calloc(1UL, size) [L5528] p = tmp VAL [\old(last_index)=0, \old(size)=248, __this_module={1383505805528216371118518:1383505805528216371118536}, calloc(1UL, size)={-1:0}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, p={-1:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=248, tmp={-1:0}, tmp___0=0] [L5529] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, \old(last_index)=0, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5498] COND FALSE !(!cond) VAL [\old(cond)=1, \old(last_index)=0, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, cond=1, jiffies=18446744073709476616, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5529] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(last_index)=0, \old(size)=248, __this_module={1383505805528216371118518:1383505805528216371118536}, calloc(1UL, size)={-1:0}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, p={-1:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=248, tmp={-1:0}, tmp___0=0] [L5530] return (p); VAL [\old(last_index)=0, \old(size)=248, \result={-1:0}, __this_module={1383505805528216371118518:1383505805528216371118536}, calloc(1UL, size)={-1:0}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, p={-1:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=248, tmp={-1:0}, tmp___0=0] [L6515] RET, EXPR ldv_zalloc(sizeof(struct sk_buff___0 )) VAL [\old(last_index)=0, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(sizeof(struct sk_buff___0 ))={-1:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L6515] tmp___7 = ldv_zalloc(sizeof(struct sk_buff___0 )) [L6516] skb = (struct sk_buff___0 *)tmp___7 VAL [\old(last_index)=0, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, skb={-1:0}, tmp___7={-1:0}] [L6517] COND FALSE !(! skb) [L6520] CALL ldv_set_add(LDV_SKBS, skb) [L6388] int i ; [L6390] i = 0 VAL [\old(last_index)=0, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, e={-1:0}, e={-1:0}, i=0, jiffies=18446744073709476616, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set={0:0}, set={0:0}, set_impl={18:0}] [L6391] COND TRUE 1 VAL [\old(last_index)=0, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, e={-1:0}, e={-1:0}, i=0, jiffies=18446744073709476616, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set={0:0}, set={0:0}, set_impl={18:0}] [L6392] COND FALSE !(i < last_index) VAL [\old(last_index)=0, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, e={-1:0}, e={-1:0}, i=0, jiffies=18446744073709476616, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set={0:0}, set={0:0}, set_impl={18:0}] [L6402] COND TRUE last_index < 15 [L6403] set_impl[last_index] = e [L6404] last_index = last_index + 1 VAL [\old(last_index)=0, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, e={-1:0}, e={-1:0}, i=0, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set={0:0}, set={0:0}, set_impl={18:0}] [L6520] RET ldv_set_add(LDV_SKBS, skb) [L6521] return (skb); VAL [\old(last_index)=0, \result={-1:0}, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, skb={-1:0}, tmp___7={-1:0}] [L6358] RET, EXPR ldv_skb_alloc() VAL [\old(last_index)=0, \old(length)=22, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, ldv_skb_alloc()={-1:0}, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, length=22, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L6358] tmp = ldv_skb_alloc() [L6359] return (tmp); VAL [\old(last_index)=0, \old(length)=22, \result={-1:0}, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, length=22, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={-1:0}] [L5700] RET, EXPR ldv_dev_alloc_skb_12(22U) [L5700] skb = ldv_dev_alloc_skb_12(22U) [L5701] COND FALSE !((unsigned long )skb == (unsigned long )((struct sk_buff *)0)) [L5706] CALL skb_reserve(skb, 4) [L5475] EXPR skb->data [L5475] skb->data = skb->data + (unsigned long )len [L5476] EXPR skb->tail [L5476] skb->tail = skb->tail + (sk_buff_data_t )len [L5706] RET skb_reserve(skb, 4) [L5707] CALL cisco_hard_header(skb, dev, 32821, (void const *)0, (void const *)0, 0U) VAL [\old(last_index)=0, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5676] struct hdlc_header *data ; [L5677] __u16 tmp ; [L5679] CALL skb_push(skb, 4U) [L6687] CALL, EXPR ldv_malloc(sizeof(unsigned char)) VAL [\old(last_index)=0, \old(size)=1, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5502] void *p ; [L5503] void *tmp ; [L5504] int tmp___0 ; [L5506] tmp___0 = __VERIFIER_nondet_int() [L5507] COND TRUE tmp___0 != 0 [L5508] return ((void *)0); VAL [\old(last_index)=0, \old(size)=1, \result={0:0}, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=1, tmp___0=-14] [L6687] RET, EXPR ldv_malloc(sizeof(unsigned char)) VAL [\old(arg1)=4, \old(last_index)=0, __this_module={1383505805528216371118518:1383505805528216371118536}, arg0={-1:0}, arg0={-1:0}, arg1=4, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_malloc(sizeof(unsigned char))={0:0}, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L6687] return ldv_malloc(sizeof(unsigned char)); [L5679] RET skb_push(skb, 4U) [L5680] EXPR skb->data [L5680] data = (struct hdlc_header *)skb->data [L5681] COND TRUE (unsigned int )type == 32821U [L5682] data->address = 143U VAL [\old(last_index)=0, \old(len)=0, \old(type)=32821, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, daddr={0:0}, daddr={0:0}, data={-1:214}, dev={0:-3264}, dev={0:-3264}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, len=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, saddr={0:0}, saddr={0:0}, set_impl={18:0}, skb={-1:0}, skb={-1:0}, type=32821] [L5686] data->control = 0U VAL [\old(last_index)=0, \old(len)=0, \old(type)=32821, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, daddr={0:0}, daddr={0:0}, data={-1:214}, dev={0:-3264}, dev={0:-3264}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, len=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, saddr={0:0}, saddr={0:0}, set_impl={18:0}, skb={-1:0}, skb={-1:0}, type=32821] [L5687] CALL, EXPR __fswab16((int )type) VAL [\old(last_index)=0, \old(val)=32821, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5123] return ((__u16 )((int )((short )((int )val << 8)) | (int )((short )((int )val >> 8)))); VAL [\old(last_index)=0, \old(val)=32821, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, val=32821] [L5687] RET, EXPR __fswab16((int )type) VAL [\old(last_index)=0, \old(len)=0, \old(type)=32821, __fswab16((int )type)=28, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, daddr={0:0}, daddr={0:0}, data={-1:214}, dev={0:-3264}, dev={0:-3264}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, len=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, saddr={0:0}, saddr={0:0}, set_impl={18:0}, skb={-1:0}, skb={-1:0}, type=32821] [L5687] tmp = __fswab16((int )type) [L5688] data->protocol = tmp [L5689] return (4); VAL [\old(last_index)=0, \old(len)=0, \old(type)=32821, \result=4, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, daddr={0:0}, daddr={0:0}, data={-1:214}, dev={0:-3264}, dev={0:-3264}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, len=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, saddr={0:0}, saddr={0:0}, set_impl={18:0}, skb={-1:0}, skb={-1:0}, tmp=28, type=32821] [L5707] RET cisco_hard_header(skb, dev, 32821, (void const *)0, (void const *)0, 0U) VAL [\old(last_index)=0, \old(par1)=4294967280, \old(par2)=4294885802, \old(type)=2, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_hard_header(skb, dev, 32821, (void const *)0, (void const *)0, 0U)=4, cisco_header_ops={17:0}, dev={0:-3264}, dev={0:-3264}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, par1=4294967280, par2=4294885802, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, skb={-1:0}, type=2] [L5708] EXPR skb->data [L5708] data = (struct cisco_packet *)skb->data + 4U [L5709] CALL, EXPR __fswab32(type) VAL [\old(last_index)=0, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5128] __u32 tmp ; [L5130] CALL, EXPR __arch_swab32(val) [L5117] return (val); VAL [\old(last_index)=0, \old(val)=2, \result=2, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, val=2] [L5130] RET, EXPR __arch_swab32(val) [L5130] tmp = __arch_swab32(val) [L5131] return (tmp); VAL [\old(last_index)=0, \old(val)=2, \result=2, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp=2, val=2] [L5709] RET, EXPR __fswab32(type) VAL [\old(last_index)=0, \old(par1)=4294967280, \old(par2)=4294885802, \old(type)=2, __fswab32(type)=2, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, data={-1:286}, dev={0:-3264}, dev={0:-3264}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, par1=4294967280, par2=4294885802, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, skb={-1:0}, type=2] [L5709] tmp = __fswab32(type) [L5710] data->type = tmp [L5711] data->par1 = par1 [L5712] data->par2 = par2 [L5713] data->rel = 65535U VAL [\old(last_index)=0, \old(par1)=4294967280, \old(par2)=4294885802, \old(type)=2, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, data={-1:286}, dev={0:-3264}, dev={0:-3264}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, par1=4294967280, par2=4294885802, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, skb={-1:0}, tmp=2, type=2] [L5714] CALL, EXPR __fswab32(((__u32 )jiffies + 75000U) * 4U) VAL [\old(last_index)=0, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5128] __u32 tmp ; [L5130] CALL, EXPR __arch_swab32(val) [L5117] return (val); VAL [\old(last_index)=0, \old(val)=0, \result=0, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, val=0] [L5130] RET, EXPR __arch_swab32(val) [L5130] tmp = __arch_swab32(val) [L5131] return (tmp); VAL [\old(last_index)=0, \old(val)=0, \result=0, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp=0, val=0] [L5714] RET, EXPR __fswab32(((__u32 )jiffies + 75000U) * 4U) VAL [\old(last_index)=0, \old(par1)=4294967280, \old(par2)=4294885802, \old(type)=2, __fswab32(((__u32 )jiffies + 75000U) * 4U)=0, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, data={-1:286}, dev={0:-3264}, dev={0:-3264}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, par1=4294967280, par2=4294885802, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, skb={-1:0}, tmp=2, type=2] [L5714] tmp___0 = __fswab32(((__u32 )jiffies + 75000U) * 4U) [L5715] data->time = tmp___0 [L5716] CALL skb_put(skb, 18U) [L6690] EXPR arg0->data [L6690] EXPR arg0->tail [L6690] unsigned char *ret_val = arg0->data + arg0->tail; [L6691] EXPR arg0->tail [L6691] arg0->tail += arg1 [L6692] return ret_val; VAL [\old(arg1)=18, \old(last_index)=0, \result={-1:242}, __this_module={1383505805528216371118518:1383505805528216371118536}, arg0={-1:0}, arg0={-1:0}, arg1=18, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, ret_val={-1:242}, set_impl={18:0}] [L5716] RET skb_put(skb, 18U) [L5717] skb->priority = 7U [L5718] skb->dev = dev [L5719] CALL skb_reset_network_header(skb) [L5483] EXPR skb->data [L5483] EXPR skb->head [L5483] skb->network_header = (int )((__u16 )((long )skb->data)) - (int )((__u16 )((long )skb->head)) [L5719] RET skb_reset_network_header(skb) [L5720] CALL dev_queue_xmit(skb) [L6643] return __VERIFIER_nondet_int(); [L5720] RET dev_queue_xmit(skb) [L5900] RET cisco_keepalive_send(dev, 2U, tmp___2, tmp___1) VAL [\old(arg)=18446744073709548352, __this_module={1383505805528216371118518:1383505805528216371118536}, arg=18446744073709548352, cisco_header_ops={17:0}, dev={0:-3264}, hdlc={0:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, st={18:-212}, tmp={0:0}, tmp___0={18:-212}, tmp___1=4294885802, tmp___2=4294967280] [L5901] CALL spin_unlock(& st->lock) VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5270] FCALL _raw_spin_unlock(& lock->ldv_6338.rlock) [L5901] RET spin_unlock(& st->lock) VAL [\old(arg)=18446744073709548352, __this_module={1383505805528216371118518:1383505805528216371118536}, arg=18446744073709548352, cisco_header_ops={17:0}, dev={0:-3264}, hdlc={0:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, st={18:-212}, tmp={0:0}, tmp___0={18:-212}, tmp___1=4294885802, tmp___2=4294967280] [L5902] EXPR st->settings.interval [L5902] st->timer.expires = (unsigned long )(st->settings.interval * 250U) + (unsigned long )jiffies [L5903] st->timer.function = & cisco_timer [L5904] st->timer.data = arg VAL [\old(arg)=18446744073709548352, __this_module={1383505805528216371118518:1383505805528216371118536}, arg=18446744073709548352, cisco_header_ops={17:0}, dev={0:-3264}, hdlc={0:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, st={18:-212}, tmp={0:0}, tmp___0={18:-212}, tmp___1=4294885802, tmp___2=4294967280] [L5905] FCALL add_timer(& st->timer) VAL [\old(arg)=18446744073709548352, __this_module={1383505805528216371118518:1383505805528216371118536}, arg=18446744073709548352, cisco_header_ops={17:0}, dev={0:-3264}, hdlc={0:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, st={18:-212}, tmp={0:0}, tmp___0={18:-212}, tmp___1=4294885802, tmp___2=4294967280] [L6115] RET (*(timer->function))(timer->data) [L6116] LDV_IN_INTERRUPT = 1 [L6117] ldv_timer_state_1 = 2 VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=2, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, timer={0:0}, timer={0:0}] [L6186] RET choose_timer_1(ldv_timer_list_1) [L6182] tmp___6 = __VERIFIER_nondet_int() [L6184] case 0: [L6190] case 1: VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=2, ldvarg0={0:0}, ldvarg1=4294885811, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=49597, ldvarg5={0:0}, ldvarg6={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=4294885811, tmp___1=49597, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}, tmp___5={0:0}, tmp___6=1, tmp___7=1] [L6191] COND TRUE ldv_state_variable_0 != 0 [L6192] tmp___7 = __VERIFIER_nondet_int() [L6194] case 0: VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=2, ldvarg0={0:0}, ldvarg1=4294885811, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=49597, ldvarg5={0:0}, ldvarg6={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=4294885811, tmp___1=49597, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}, tmp___5={0:0}, tmp___6=1, tmp___7=0] [L6195] COND TRUE ldv_state_variable_0 == 3 && ref_cnt == 0 [L6196] CALL mod_exit() [L6074] FCALL unregister_hdlc_protocol(& proto) [L6196] RET mod_exit() [L6197] ldv_state_variable_0 = 2 VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=2, ldvarg0={0:0}, ldvarg1=4294885811, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=49597, ldvarg5={0:0}, ldvarg6={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=4294885811, tmp___1=49597, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}, tmp___5={0:0}, tmp___6=1, tmp___7=0] [L6315] CALL ldv_check_final_state() [L6579] int tmp___7 ; [L6581] CALL, EXPR ldv_set_is_empty(LDV_SKBS) [L6470] return (last_index == 0); VAL [\result=0, __this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=2, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set={0:0}, set={0:0}, set_impl={18:0}] [L6581] RET, EXPR ldv_set_is_empty(LDV_SKBS) [L6581] tmp___7 = ldv_set_is_empty(LDV_SKBS) [L6582] COND FALSE !(\read(tmp___7)) VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=2, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp___7=0] [L6584] CALL ldv_error() VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=2, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5554] reach_error() VAL [__this_module={1383505805528216371118518:1383505805528216371118536}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=2, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 33 procedures, 489 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.1s, OverallIterations: 6, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3918 SdHoareTripleChecker+Valid, 4.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3675 mSDsluCounter, 14172 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10758 mSDsCounter, 1031 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4447 IncrementalHoareTripleChecker+Invalid, 5478 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1031 mSolverCounterUnsat, 3414 mSDtfsCounter, 4447 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 295 GetRequests, 251 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1954occurred in iteration=5, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 506 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 781 NumberOfCodeBlocks, 781 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 592 ConstructedInterpolants, 0 QuantifiedInterpolants, 1351 SizeOfPredicates, 2 NumberOfNonLiveVariables, 961 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 540/544 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-28 03:58:11,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_cisco.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 aa96c32cec5c31a75c9cdd0122db38bdeb379765e4b6aca9c91d1bb4fedaed44 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 03:58:13,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 03:58:13,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 03:58:13,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 03:58:13,125 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 03:58:13,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 03:58:13,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 03:58:13,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 03:58:13,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 03:58:13,140 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 03:58:13,141 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 03:58:13,142 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 03:58:13,143 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 03:58:13,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 03:58:13,160 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 03:58:13,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 03:58:13,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 03:58:13,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 03:58:13,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 03:58:13,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 03:58:13,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 03:58:13,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 03:58:13,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 03:58:13,176 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 03:58:13,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 03:58:13,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 03:58:13,178 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 03:58:13,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 03:58:13,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 03:58:13,180 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 03:58:13,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 03:58:13,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 03:58:13,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 03:58:13,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 03:58:13,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 03:58:13,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 03:58:13,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 03:58:13,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 03:58:13,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 03:58:13,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 03:58:13,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 03:58:13,189 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-28 03:58:13,217 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 03:58:13,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 03:58:13,218 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 03:58:13,218 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 03:58:13,219 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 03:58:13,219 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 03:58:13,220 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 03:58:13,220 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 03:58:13,220 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 03:58:13,220 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 03:58:13,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 03:58:13,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 03:58:13,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 03:58:13,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 03:58:13,222 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-28 03:58:13,222 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-28 03:58:13,222 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-28 03:58:13,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 03:58:13,222 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 03:58:13,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 03:58:13,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 03:58:13,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 03:58:13,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 03:58:13,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:58:13,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 03:58:13,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 03:58:13,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 03:58:13,223 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-28 03:58:13,224 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-28 03:58:13,224 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 03:58:13,231 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 03:58:13,231 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 03:58:13,231 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-28 03:58:13,231 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa96c32cec5c31a75c9cdd0122db38bdeb379765e4b6aca9c91d1bb4fedaed44 [2021-12-28 03:58:13,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 03:58:13,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 03:58:13,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 03:58:13,562 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 03:58:13,563 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 03:58:13,564 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_cisco.ko-entry_point.cil.out.i [2021-12-28 03:58:13,610 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4da9ec3d6/95da74c4b6cd497cb2329050db504e63/FLAG0aecfa739 [2021-12-28 03:58:14,180 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 03:58:14,180 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_cisco.ko-entry_point.cil.out.i [2021-12-28 03:58:14,209 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4da9ec3d6/95da74c4b6cd497cb2329050db504e63/FLAG0aecfa739 [2021-12-28 03:58:14,638 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4da9ec3d6/95da74c4b6cd497cb2329050db504e63 [2021-12-28 03:58:14,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 03:58:14,642 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 03:58:14,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 03:58:14,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 03:58:14,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 03:58:14,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:58:14" (1/1) ... [2021-12-28 03:58:14,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@693e5c21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:14, skipping insertion in model container [2021-12-28 03:58:14,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:58:14" (1/1) ... [2021-12-28 03:58:14,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 03:58:14,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 03:58:15,325 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-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_cisco.ko-entry_point.cil.out.i[158033,158046] [2021-12-28 03:58:15,532 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:58:15,550 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-28 03:58:15,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 03:58:15,686 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-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_cisco.ko-entry_point.cil.out.i[158033,158046] [2021-12-28 03:58:15,785 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:58:15,793 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 03:58:15,873 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-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_cisco.ko-entry_point.cil.out.i[158033,158046] [2021-12-28 03:58:15,942 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:58:15,975 INFO L208 MainTranslator]: Completed translation [2021-12-28 03:58:15,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:15 WrapperNode [2021-12-28 03:58:15,976 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 03:58:15,977 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 03:58:15,977 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 03:58:15,977 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 03:58:15,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:15" (1/1) ... [2021-12-28 03:58:16,022 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:15" (1/1) ... [2021-12-28 03:58:16,096 INFO L137 Inliner]: procedures = 158, calls = 357, calls flagged for inlining = 63, calls inlined = 60, statements flattened = 1390 [2021-12-28 03:58:16,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 03:58:16,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 03:58:16,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 03:58:16,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 03:58:16,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:15" (1/1) ... [2021-12-28 03:58:16,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:15" (1/1) ... [2021-12-28 03:58:16,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:15" (1/1) ... [2021-12-28 03:58:16,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:15" (1/1) ... [2021-12-28 03:58:16,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:15" (1/1) ... [2021-12-28 03:58:16,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:15" (1/1) ... [2021-12-28 03:58:16,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:15" (1/1) ... [2021-12-28 03:58:16,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 03:58:16,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 03:58:16,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 03:58:16,221 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 03:58:16,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:15" (1/1) ... [2021-12-28 03:58:16,229 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:58:16,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:58:16,261 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) [2021-12-28 03:58:16,297 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 [2021-12-28 03:58:16,316 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-28 03:58:16,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-28 03:58:16,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-28 03:58:16,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-28 03:58:16,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-28 03:58:16,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 03:58:16,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-12-28 03:58:16,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 03:58:16,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 03:58:16,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 03:58:16,318 INFO L130 BoogieDeclarations]: Found specification of procedure state [2021-12-28 03:58:16,318 INFO L138 BoogieDeclarations]: Found implementation of procedure state [2021-12-28 03:58:16,318 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2021-12-28 03:58:16,318 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2021-12-28 03:58:16,318 INFO L130 BoogieDeclarations]: Found specification of procedure cisco_ioctl [2021-12-28 03:58:16,318 INFO L138 BoogieDeclarations]: Found implementation of procedure cisco_ioctl [2021-12-28 03:58:16,318 INFO L130 BoogieDeclarations]: Found specification of procedure cisco_rx [2021-12-28 03:58:16,318 INFO L138 BoogieDeclarations]: Found implementation of procedure cisco_rx [2021-12-28 03:58:16,319 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-28 03:58:16,319 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-28 03:58:16,319 INFO L130 BoogieDeclarations]: Found specification of procedure cisco_type_trans [2021-12-28 03:58:16,319 INFO L138 BoogieDeclarations]: Found implementation of procedure cisco_type_trans [2021-12-28 03:58:16,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 03:58:16,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 03:58:16,319 INFO L130 BoogieDeclarations]: Found specification of procedure netif_dormant_on [2021-12-28 03:58:16,319 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_dormant_on [2021-12-28 03:58:16,320 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-12-28 03:58:16,320 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-12-28 03:58:16,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-12-28 03:58:16,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-12-28 03:58:16,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 03:58:16,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 03:58:16,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-12-28 03:58:16,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-12-28 03:58:16,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-12-28 03:58:16,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-12-28 03:58:16,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 03:58:16,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 03:58:16,322 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 03:58:16,322 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 03:58:16,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 03:58:16,322 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 03:58:16,322 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 03:58:16,322 INFO L130 BoogieDeclarations]: Found specification of procedure cisco_hard_header [2021-12-28 03:58:16,323 INFO L138 BoogieDeclarations]: Found implementation of procedure cisco_hard_header [2021-12-28 03:58:16,323 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-28 03:58:16,323 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-28 03:58:16,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 03:58:16,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 03:58:16,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 03:58:16,324 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-12-28 03:58:16,325 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-12-28 03:58:16,325 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-28 03:58:16,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-12-28 03:58:16,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-12-28 03:58:16,326 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2021-12-28 03:58:16,326 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2021-12-28 03:58:16,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-12-28 03:58:16,327 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-12-28 03:58:16,327 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-12-28 03:58:16,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 03:58:16,327 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-28 03:58:16,327 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-28 03:58:16,327 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 03:58:16,327 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 03:58:16,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-28 03:58:16,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-28 03:58:16,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-12-28 03:58:16,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 03:58:16,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-28 03:58:16,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 03:58:16,329 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-28 03:58:16,329 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-28 03:58:16,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-28 03:58:16,329 INFO L130 BoogieDeclarations]: Found specification of procedure cisco_keepalive_send [2021-12-28 03:58:16,329 INFO L138 BoogieDeclarations]: Found implementation of procedure cisco_keepalive_send [2021-12-28 03:58:16,329 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-28 03:58:16,329 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-28 03:58:16,329 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-28 03:58:16,330 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-28 03:58:16,330 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-28 03:58:16,330 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-28 03:58:16,330 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-28 03:58:16,330 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-28 03:58:16,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-12-28 03:58:16,331 INFO L130 BoogieDeclarations]: Found specification of procedure linkwatch_fire_event [2021-12-28 03:58:16,331 INFO L138 BoogieDeclarations]: Found implementation of procedure linkwatch_fire_event [2021-12-28 03:58:16,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-28 03:58:16,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-28 03:58:16,332 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-28 03:58:16,332 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-28 03:58:16,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 03:58:16,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 03:58:16,729 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 03:58:16,730 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 03:58:16,781 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 03:58:25,651 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 03:58:25,664 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 03:58:25,664 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 03:58:25,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:58:25 BoogieIcfgContainer [2021-12-28 03:58:25,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 03:58:25,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 03:58:25,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 03:58:25,671 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 03:58:25,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 03:58:14" (1/3) ... [2021-12-28 03:58:25,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e3225f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:58:25, skipping insertion in model container [2021-12-28 03:58:25,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:15" (2/3) ... [2021-12-28 03:58:25,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e3225f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:58:25, skipping insertion in model container [2021-12-28 03:58:25,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:58:25" (3/3) ... [2021-12-28 03:58:25,674 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_cisco.ko-entry_point.cil.out.i [2021-12-28 03:58:25,678 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 03:58:25,679 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 03:58:25,754 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 03:58:25,761 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 [2021-12-28 03:58:25,761 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 03:58:25,785 INFO L276 IsEmpty]: Start isEmpty. Operand has 488 states, 358 states have (on average 1.3715083798882681) internal successors, (491), 371 states have internal predecessors, (491), 97 states have call successors, (97), 32 states have call predecessors, (97), 31 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2021-12-28 03:58:25,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-28 03:58:25,795 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:58:25,795 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 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] [2021-12-28 03:58:25,796 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:58:25,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:58:25,800 INFO L85 PathProgramCache]: Analyzing trace with hash -796223239, now seen corresponding path program 1 times [2021-12-28 03:58:25,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-28 03:58:25,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [480922673] [2021-12-28 03:58:25,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:58:25,816 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-28 03:58:25,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-28 03:58:25,843 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-28 03:58:25,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-28 03:58:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:26,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-28 03:58:26,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:58:26,234 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-28 03:58:26,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 03:58:26,234 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-28 03:58:26,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [480922673] [2021-12-28 03:58:26,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [480922673] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:58:26,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:58:26,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 03:58:26,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883540568] [2021-12-28 03:58:26,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:58:26,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 03:58:26,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-28 03:58:26,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 03:58:26,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:58:26,258 INFO L87 Difference]: Start difference. First operand has 488 states, 358 states have (on average 1.3715083798882681) internal successors, (491), 371 states have internal predecessors, (491), 97 states have call successors, (97), 32 states have call predecessors, (97), 31 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-28 03:58:26,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:58:26,427 INFO L93 Difference]: Finished difference Result 1423 states and 2029 transitions. [2021-12-28 03:58:26,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 03:58:26,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 47 [2021-12-28 03:58:26,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:58:26,447 INFO L225 Difference]: With dead ends: 1423 [2021-12-28 03:58:26,447 INFO L226 Difference]: Without dead ends: 924 [2021-12-28 03:58:26,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:58:26,454 INFO L933 BasicCegarLoop]: 767 mSDtfsCounter, 628 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 1428 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 03:58:26,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [628 Valid, 1428 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 03:58:26,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2021-12-28 03:58:26,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 924. [2021-12-28 03:58:26,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 685 states have (on average 1.3562043795620438) internal successors, (929), 699 states have internal predecessors, (929), 178 states have call successors, (178), 61 states have call predecessors, (178), 60 states have return successors, (177), 177 states have call predecessors, (177), 177 states have call successors, (177) [2021-12-28 03:58:26,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1284 transitions. [2021-12-28 03:58:26,533 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1284 transitions. Word has length 47 [2021-12-28 03:58:26,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:58:26,534 INFO L470 AbstractCegarLoop]: Abstraction has 924 states and 1284 transitions. [2021-12-28 03:58:26,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-28 03:58:26,534 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1284 transitions. [2021-12-28 03:58:26,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-28 03:58:26,537 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:58:26,537 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 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] [2021-12-28 03:58:26,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-28 03:58:26,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-28 03:58:26,747 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:58:26,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:58:26,748 INFO L85 PathProgramCache]: Analyzing trace with hash 566714884, now seen corresponding path program 1 times [2021-12-28 03:58:26,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-28 03:58:26,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [973873926] [2021-12-28 03:58:26,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:58:26,749 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-28 03:58:26,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-28 03:58:26,764 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-28 03:58:26,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-28 03:58:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:26,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-28 03:58:26,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:58:27,084 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-28 03:58:27,084 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 03:58:27,084 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-28 03:58:27,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [973873926] [2021-12-28 03:58:27,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [973873926] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:58:27,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:58:27,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:58:27,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837105944] [2021-12-28 03:58:27,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:58:27,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:58:27,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-28 03:58:27,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:58:27,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:58:27,087 INFO L87 Difference]: Start difference. First operand 924 states and 1284 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-28 03:58:27,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:58:27,309 INFO L93 Difference]: Finished difference Result 1833 states and 2547 transitions. [2021-12-28 03:58:27,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 03:58:27,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 50 [2021-12-28 03:58:27,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:58:27,315 INFO L225 Difference]: With dead ends: 1833 [2021-12-28 03:58:27,315 INFO L226 Difference]: Without dead ends: 923 [2021-12-28 03:58:27,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:58:27,319 INFO L933 BasicCegarLoop]: 782 mSDtfsCounter, 794 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-28 03:58:27,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [794 Valid, 1453 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-28 03:58:27,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2021-12-28 03:58:27,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 923. [2021-12-28 03:58:27,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 684 states have (on average 1.3523391812865497) internal successors, (925), 698 states have internal predecessors, (925), 178 states have call successors, (178), 61 states have call predecessors, (178), 60 states have return successors, (177), 177 states have call predecessors, (177), 177 states have call successors, (177) [2021-12-28 03:58:27,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1280 transitions. [2021-12-28 03:58:27,349 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1280 transitions. Word has length 50 [2021-12-28 03:58:27,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:58:27,349 INFO L470 AbstractCegarLoop]: Abstraction has 923 states and 1280 transitions. [2021-12-28 03:58:27,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-28 03:58:27,349 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1280 transitions. [2021-12-28 03:58:27,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-28 03:58:27,352 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:58:27,352 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 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] [2021-12-28 03:58:27,361 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-28 03:58:27,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-28 03:58:27,561 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:58:27,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:58:27,562 INFO L85 PathProgramCache]: Analyzing trace with hash -965053755, now seen corresponding path program 1 times [2021-12-28 03:58:27,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-28 03:58:27,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1693504467] [2021-12-28 03:58:27,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:58:27,563 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-28 03:58:27,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-28 03:58:27,580 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-28 03:58:27,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-28 03:58:27,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:27,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-28 03:58:27,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:58:28,112 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-12-28 03:58:28,112 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 03:58:28,112 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-28 03:58:28,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1693504467] [2021-12-28 03:58:28,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1693504467] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:58:28,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:58:28,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 03:58:28,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091234662] [2021-12-28 03:58:28,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:58:28,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 03:58:28,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-28 03:58:28,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 03:58:28,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:58:28,114 INFO L87 Difference]: Start difference. First operand 923 states and 1280 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-28 03:58:28,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:58:28,264 INFO L93 Difference]: Finished difference Result 2738 states and 3820 transitions. [2021-12-28 03:58:28,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:58:28,265 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2021-12-28 03:58:28,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:58:28,274 INFO L225 Difference]: With dead ends: 2738 [2021-12-28 03:58:28,275 INFO L226 Difference]: Without dead ends: 1824 [2021-12-28 03:58:28,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-28 03:58:28,280 INFO L933 BasicCegarLoop]: 752 mSDtfsCounter, 627 mSDsluCounter, 2144 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 2896 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 03:58:28,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [627 Valid, 2896 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 03:58:28,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1824 states. [2021-12-28 03:58:28,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1824 to 1824. [2021-12-28 03:58:28,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1824 states, 1353 states have (on average 1.3540280857354028) internal successors, (1832), 1381 states have internal predecessors, (1832), 350 states have call successors, (350), 121 states have call predecessors, (350), 120 states have return successors, (359), 349 states have call predecessors, (359), 349 states have call successors, (359) [2021-12-28 03:58:28,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 2541 transitions. [2021-12-28 03:58:28,394 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 2541 transitions. Word has length 71 [2021-12-28 03:58:28,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:58:28,394 INFO L470 AbstractCegarLoop]: Abstraction has 1824 states and 2541 transitions. [2021-12-28 03:58:28,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-28 03:58:28,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 2541 transitions. [2021-12-28 03:58:28,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-12-28 03:58:28,414 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:58:28,414 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:58:28,437 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-28 03:58:28,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-28 03:58:28,638 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:58:28,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:58:28,639 INFO L85 PathProgramCache]: Analyzing trace with hash -574025911, now seen corresponding path program 1 times [2021-12-28 03:58:28,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-28 03:58:28,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1776020120] [2021-12-28 03:58:28,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:58:28,640 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-28 03:58:28,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-28 03:58:28,641 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-28 03:58:28,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-28 03:58:28,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:28,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-28 03:58:28,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:58:29,254 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-28 03:58:29,254 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 03:58:29,254 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-28 03:58:29,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1776020120] [2021-12-28 03:58:29,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1776020120] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:58:29,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:58:29,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 03:58:29,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670091035] [2021-12-28 03:58:29,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:58:29,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 03:58:29,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-28 03:58:29,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 03:58:29,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:58:29,256 INFO L87 Difference]: Start difference. First operand 1824 states and 2541 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-28 03:58:29,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:58:29,320 INFO L93 Difference]: Finished difference Result 3658 states and 5130 transitions. [2021-12-28 03:58:29,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:58:29,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 141 [2021-12-28 03:58:29,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:58:29,328 INFO L225 Difference]: With dead ends: 3658 [2021-12-28 03:58:29,328 INFO L226 Difference]: Without dead ends: 1848 [2021-12-28 03:58:29,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:58:29,333 INFO L933 BasicCegarLoop]: 658 mSDtfsCounter, 2 mSDsluCounter, 1969 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2627 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 03:58:29,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 2627 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 03:58:29,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1848 states. [2021-12-28 03:58:29,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1848 to 1844. [2021-12-28 03:58:29,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1844 states, 1367 states have (on average 1.3504023408924652) internal successors, (1846), 1397 states have internal predecessors, (1846), 350 states have call successors, (350), 121 states have call predecessors, (350), 126 states have return successors, (374), 353 states have call predecessors, (374), 349 states have call successors, (374) [2021-12-28 03:58:29,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 2570 transitions. [2021-12-28 03:58:29,374 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 2570 transitions. Word has length 141 [2021-12-28 03:58:29,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:58:29,374 INFO L470 AbstractCegarLoop]: Abstraction has 1844 states and 2570 transitions. [2021-12-28 03:58:29,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-28 03:58:29,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 2570 transitions. [2021-12-28 03:58:29,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-28 03:58:29,378 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:58:29,378 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2021-12-28 03:58:29,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-28 03:58:29,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-28 03:58:29,592 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:58:29,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:58:29,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1293113785, now seen corresponding path program 1 times [2021-12-28 03:58:29,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-28 03:58:29,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930580791] [2021-12-28 03:58:29,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:58:29,594 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-28 03:58:29,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-28 03:58:29,595 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-28 03:58:29,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-28 03:58:29,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:29,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 22 conjunts are in the unsatisfiable core [2021-12-28 03:58:29,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:58:30,484 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-28 03:58:30,485 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 03:58:30,485 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-28 03:58:30,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930580791] [2021-12-28 03:58:30,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930580791] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:58:30,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:58:30,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-28 03:58:30,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561714048] [2021-12-28 03:58:30,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:58:30,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 03:58:30,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-28 03:58:30,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 03:58:30,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-28 03:58:30,486 INFO L87 Difference]: Start difference. First operand 1844 states and 2570 transitions. Second operand has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 9 states have internal predecessors, (88), 2 states have call successors, (19), 2 states have call predecessors, (19), 5 states have return successors, (18), 5 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-28 03:58:32,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:58:32,438 INFO L93 Difference]: Finished difference Result 3746 states and 5240 transitions. [2021-12-28 03:58:32,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-28 03:58:32,440 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 9 states have internal predecessors, (88), 2 states have call successors, (19), 2 states have call predecessors, (19), 5 states have return successors, (18), 5 states have call predecessors, (18), 2 states have call successors, (18) Word has length 148 [2021-12-28 03:58:32,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:58:32,446 INFO L225 Difference]: With dead ends: 3746 [2021-12-28 03:58:32,446 INFO L226 Difference]: Without dead ends: 1916 [2021-12-28 03:58:32,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-12-28 03:58:32,452 INFO L933 BasicCegarLoop]: 669 mSDtfsCounter, 36 mSDsluCounter, 6636 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 7305 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-28 03:58:32,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 7305 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-28 03:58:32,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2021-12-28 03:58:32,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1884. [2021-12-28 03:58:32,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1884 states, 1397 states have (on average 1.340014316392269) internal successors, (1872), 1427 states have internal predecessors, (1872), 356 states have call successors, (356), 121 states have call predecessors, (356), 130 states have return successors, (386), 363 states have call predecessors, (386), 355 states have call successors, (386) [2021-12-28 03:58:32,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1884 states to 1884 states and 2614 transitions. [2021-12-28 03:58:32,502 INFO L78 Accepts]: Start accepts. Automaton has 1884 states and 2614 transitions. Word has length 148 [2021-12-28 03:58:32,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:58:32,503 INFO L470 AbstractCegarLoop]: Abstraction has 1884 states and 2614 transitions. [2021-12-28 03:58:32,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 9 states have internal predecessors, (88), 2 states have call successors, (19), 2 states have call predecessors, (19), 5 states have return successors, (18), 5 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-28 03:58:32,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1884 states and 2614 transitions. [2021-12-28 03:58:32,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-12-28 03:58:32,509 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:58:32,510 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:58:32,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-12-28 03:58:32,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-28 03:58:32,724 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:58:32,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:58:32,725 INFO L85 PathProgramCache]: Analyzing trace with hash -669328497, now seen corresponding path program 1 times [2021-12-28 03:58:32,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-28 03:58:32,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [926365238] [2021-12-28 03:58:32,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:58:32,727 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-28 03:58:32,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-28 03:58:32,753 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-28 03:58:32,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-28 03:58:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 03:58:34,548 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 03:58:35,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 03:58:36,327 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-12-28 03:58:36,327 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-28 03:58:36,328 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-28 03:58:36,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-12-28 03:58:36,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-28 03:58:36,558 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-12-28 03:58:36,560 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-28 03:58:36,608 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:36,609 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:36,609 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:36,610 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:36,610 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:36,610 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:36,610 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:36,611 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:36,611 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:36,611 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:36,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 03:58:36 BoogieIcfgContainer [2021-12-28 03:58:36,775 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-28 03:58:36,776 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 03:58:36,776 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 03:58:36,777 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 03:58:36,777 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:58:25" (3/4) ... [2021-12-28 03:58:36,779 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-28 03:58:36,800 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:36,801 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:36,801 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:36,801 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:36,802 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:36,802 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:36,802 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:36,802 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:36,802 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:36,802 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-28 03:58:36,988 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 03:58:36,989 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 03:58:36,989 INFO L158 Benchmark]: Toolchain (without parser) took 22347.48ms. Allocated memory was 75.5MB in the beginning and 260.0MB in the end (delta: 184.5MB). Free memory was 52.1MB in the beginning and 183.6MB in the end (delta: -131.5MB). Peak memory consumption was 183.8MB. Max. memory is 16.1GB. [2021-12-28 03:58:36,989 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 75.5MB. Free memory is still 58.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 03:58:36,991 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1333.52ms. Allocated memory was 75.5MB in the beginning and 109.1MB in the end (delta: 33.6MB). Free memory was 51.9MB in the beginning and 37.9MB in the end (delta: 14.0MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. [2021-12-28 03:58:36,991 INFO L158 Benchmark]: Boogie Procedure Inliner took 120.08ms. Allocated memory was 109.1MB in the beginning and 197.1MB in the end (delta: 88.1MB). Free memory was 37.9MB in the beginning and 141.3MB in the end (delta: -103.4MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2021-12-28 03:58:36,992 INFO L158 Benchmark]: Boogie Preprocessor took 121.06ms. Allocated memory is still 197.1MB. Free memory was 141.3MB in the beginning and 132.8MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-28 03:58:36,992 INFO L158 Benchmark]: RCFGBuilder took 9447.69ms. Allocated memory is still 197.1MB. Free memory was 132.8MB in the beginning and 80.2MB in the end (delta: 52.7MB). Peak memory consumption was 53.7MB. Max. memory is 16.1GB. [2021-12-28 03:58:36,992 INFO L158 Benchmark]: TraceAbstraction took 11107.07ms. Allocated memory was 197.1MB in the beginning and 260.0MB in the end (delta: 62.9MB). Free memory was 79.1MB in the beginning and 96.7MB in the end (delta: -17.6MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. [2021-12-28 03:58:36,993 INFO L158 Benchmark]: Witness Printer took 212.46ms. Allocated memory is still 260.0MB. Free memory was 96.7MB in the beginning and 183.6MB in the end (delta: -86.9MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. [2021-12-28 03:58:36,995 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 75.5MB. Free memory is still 58.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1333.52ms. Allocated memory was 75.5MB in the beginning and 109.1MB in the end (delta: 33.6MB). Free memory was 51.9MB in the beginning and 37.9MB in the end (delta: 14.0MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 120.08ms. Allocated memory was 109.1MB in the beginning and 197.1MB in the end (delta: 88.1MB). Free memory was 37.9MB in the beginning and 141.3MB in the end (delta: -103.4MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 121.06ms. Allocated memory is still 197.1MB. Free memory was 141.3MB in the beginning and 132.8MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 9447.69ms. Allocated memory is still 197.1MB. Free memory was 132.8MB in the beginning and 80.2MB in the end (delta: 52.7MB). Peak memory consumption was 53.7MB. Max. memory is 16.1GB. * TraceAbstraction took 11107.07ms. Allocated memory was 197.1MB in the beginning and 260.0MB in the end (delta: 62.9MB). Free memory was 79.1MB in the beginning and 96.7MB in the end (delta: -17.6MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. * Witness Printer took 212.46ms. Allocated memory is still 260.0MB. Free memory was 96.7MB in the beginning and 183.6MB in the end (delta: -86.9MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 5554]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L5577] int LDV_IN_INTERRUPT = 1; [L5578] struct sk_buff *proto_group1 ; [L5579] int ldv_state_variable_0 ; [L5580] int ldv_state_variable_3 ; [L5581] int ldv_timer_state_1 = 0; [L5582] int ldv_state_variable_2 ; [L5583] struct net_device *proto_group0 ; [L5584] int ref_cnt ; [L5585] int ldv_state_variable_1 ; [L5586] struct timer_list *ldv_timer_list_1 ; [L5964-L5966] static struct hdlc_proto proto = {0, 0, & cisco_start, & cisco_stop, 0, & cisco_ioctl, & cisco_type_trans, & cisco_rx, 0, & __this_module, 0}; [L5967] static struct header_ops const cisco_header_ops = {& cisco_hard_header, 0, 0, 0, 0}; [L6078] int ldv_retval_0 ; [L6374] Element set_impl[15] ; [L6375] int last_index = 0; [L6509] Set LDV_SKBS ; VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L6142] struct ifreq *ldvarg0 ; [L6143] void *tmp ; [L6144] unsigned int ldvarg1 ; [L6145] unsigned int tmp___0 ; [L6146] unsigned short ldvarg4 ; [L6147] unsigned short tmp___1 ; [L6148] struct sk_buff *ldvarg3 ; [L6149] void *tmp___2 ; [L6150] struct net_device *ldvarg5 ; [L6151] void *tmp___3 ; [L6152] void *ldvarg2 ; [L6153] void *tmp___4 ; [L6154] void *ldvarg6 ; [L6155] void *tmp___5 ; [L6156] int tmp___6 ; [L6157] int tmp___7 ; [L6158] int tmp___8 ; [L6159] int tmp___9 ; VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L6161] CALL, EXPR ldv_zalloc(40UL) VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5519] void *p ; [L5520] void *tmp ; [L5521] int tmp___0 ; [L5523] tmp___0 = __VERIFIER_nondet_int() [L5524] COND TRUE tmp___0 != 0 [L5525] return ((void *)0); VAL [\old(size)=40, \result={0:0}, __this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=40, tmp___0=2147483648] [L6161] RET, EXPR ldv_zalloc(40UL) VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(40UL)={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L6161] tmp = ldv_zalloc(40UL) [L6162] ldvarg0 = (struct ifreq *)tmp [L6163] tmp___0 = __VERIFIER_nondet_uint() [L6164] ldvarg1 = tmp___0 [L6165] tmp___1 = __VERIFIER_nondet_ushort() [L6166] ldvarg4 = tmp___1 VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1=5, ldvarg4=5, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=5, tmp___1=5] [L6167] CALL, EXPR ldv_zalloc(232UL) VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5519] void *p ; [L5520] void *tmp ; [L5521] int tmp___0 ; [L5523] tmp___0 = __VERIFIER_nondet_int() [L5524] COND TRUE tmp___0 != 0 [L5525] return ((void *)0); VAL [\old(size)=232, \result={0:0}, __this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=232, tmp___0=2147483648] [L6167] RET, EXPR ldv_zalloc(232UL) VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(232UL)={0:0}, ldvarg0={0:0}, ldvarg1=5, ldvarg4=5, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=5, tmp___1=5] [L6167] tmp___2 = ldv_zalloc(232UL) [L6168] ldvarg3 = (struct sk_buff *)tmp___2 VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1=5, ldvarg3={0:0}, ldvarg4=5, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=5, tmp___1=5, tmp___2={0:0}] [L6169] CALL, EXPR ldv_zalloc(3264UL) VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5519] void *p ; [L5520] void *tmp ; [L5521] int tmp___0 ; [L5523] tmp___0 = __VERIFIER_nondet_int() [L5524] COND TRUE tmp___0 != 0 [L5525] return ((void *)0); VAL [\old(size)=3264, \result={0:0}, __this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=3264, tmp___0=2147483648] [L6169] RET, EXPR ldv_zalloc(3264UL) VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(3264UL)={0:0}, ldvarg0={0:0}, ldvarg1=5, ldvarg3={0:0}, ldvarg4=5, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=5, tmp___1=5, tmp___2={0:0}] [L6169] tmp___3 = ldv_zalloc(3264UL) [L6170] ldvarg5 = (struct net_device *)tmp___3 VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1=5, ldvarg3={0:0}, ldvarg4=5, ldvarg5={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=5, tmp___1=5, tmp___2={0:0}, tmp___3={0:0}] [L6171] CALL, EXPR ldv_zalloc(1UL) VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5519] void *p ; [L5520] void *tmp ; [L5521] int tmp___0 ; [L5523] tmp___0 = __VERIFIER_nondet_int() [L5524] COND TRUE tmp___0 != 0 [L5525] return ((void *)0); VAL [\old(size)=1, \result={0:0}, __this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=1, tmp___0=2147483648] [L6171] RET, EXPR ldv_zalloc(1UL) VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(1UL)={0:0}, ldvarg0={0:0}, ldvarg1=5, ldvarg3={0:0}, ldvarg4=5, ldvarg5={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=5, tmp___1=5, tmp___2={0:0}, tmp___3={0:0}] [L6171] tmp___4 = ldv_zalloc(1UL) [L6172] ldvarg2 = tmp___4 VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1=5, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=5, ldvarg5={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=5, tmp___1=5, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}] [L6173] CALL, EXPR ldv_zalloc(1UL) VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5519] void *p ; [L5520] void *tmp ; [L5521] int tmp___0 ; [L5523] tmp___0 = __VERIFIER_nondet_int() [L5524] COND TRUE tmp___0 != 0 [L5525] return ((void *)0); VAL [\old(size)=1, \result={0:0}, __this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=1, tmp___0=2147483648] [L6173] RET, EXPR ldv_zalloc(1UL) VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(1UL)={0:0}, ldvarg0={0:0}, ldvarg1=5, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=5, ldvarg5={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=5, tmp___1=5, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}] [L6173] tmp___5 = ldv_zalloc(1UL) [L6174] ldvarg6 = tmp___5 [L6175] CALL ldv_initialize() [L6528] CALL ldv_set_init(LDV_SKBS) [L6380] set = set_impl [L6381] last_index = 0 VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set={0:0}, set={18:0}, set_impl={18:0}] [L6528] RET ldv_set_init(LDV_SKBS) [L6175] RET ldv_initialize() [L6176] ldv_state_variable_1 = 1 [L6177] ref_cnt = 0 [L6178] ldv_state_variable_0 = 1 [L6179] ldv_state_variable_3 = 0 [L6180] ldv_state_variable_2 = 0 VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1=5, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=5, ldvarg5={0:0}, ldvarg6={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=5, tmp___1=5, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}, tmp___5={0:0}] [L6182] tmp___6 = __VERIFIER_nondet_int() [L6184] case 0: [L6190] case 1: VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1=5, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=5, ldvarg5={0:0}, ldvarg6={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=5, tmp___1=5, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}, tmp___5={0:0}, tmp___6=1] [L6191] COND TRUE ldv_state_variable_0 != 0 [L6192] tmp___7 = __VERIFIER_nondet_int() [L6194] case 0: [L6202] case 1: VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1=5, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=5, ldvarg5={0:0}, ldvarg6={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=5, tmp___1=5, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}, tmp___5={0:0}, tmp___6=1, tmp___7=1] [L6203] COND TRUE ldv_state_variable_0 == 1 [L6204] CALL, EXPR mod_init() [L6067] FCALL register_hdlc_protocol(& proto) [L6068] return (0); VAL [\result=0, __this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L6204] RET, EXPR mod_init() [L6204] ldv_retval_0 = mod_init() [L6205] COND TRUE ldv_retval_0 == 0 [L6206] ldv_state_variable_0 = 3 [L6207] ldv_state_variable_2 = 1 [L6208] ldv_state_variable_3 = 1 [L6209] CALL ldv_initialize_hdlc_proto_3() [L6101] void *tmp ; [L6102] void *tmp___0 ; VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L6104] CALL, EXPR ldv_zalloc(232UL) VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5519] void *p ; [L5520] void *tmp ; [L5521] int tmp___0 ; [L5523] tmp___0 = __VERIFIER_nondet_int() [L5524] COND TRUE tmp___0 != 0 [L5525] return ((void *)0); VAL [\old(size)=232, \result={0:0}, __this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=232, tmp___0=2147483648] [L6104] RET, EXPR ldv_zalloc(232UL) VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(232UL)={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L6104] tmp = ldv_zalloc(232UL) [L6105] proto_group1 = (struct sk_buff *)tmp VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}] [L6106] CALL, EXPR ldv_zalloc(3264UL) VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5519] void *p ; [L5520] void *tmp ; [L5521] int tmp___0 ; [L5523] tmp___0 = __VERIFIER_nondet_int() [L5524] COND TRUE tmp___0 != 0 [L5525] return ((void *)0); VAL [\old(size)=3264, \result={0:0}, __this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=3264, tmp___0=2147483648] [L6106] RET, EXPR ldv_zalloc(3264UL) VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(3264UL)={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}] [L6106] tmp___0 = ldv_zalloc(3264UL) [L6107] proto_group0 = (struct net_device *)tmp___0 VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0={0:0}] [L6209] RET ldv_initialize_hdlc_proto_3() [L6212] COND FALSE !(ldv_retval_0 != 0) VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1=5, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=5, ldvarg5={0:0}, ldvarg6={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=5, tmp___1=5, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}, tmp___5={0:0}, tmp___6=1, tmp___7=1] [L6182] tmp___6 = __VERIFIER_nondet_int() [L6184] case 0: VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1=5, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=5, ldvarg5={0:0}, ldvarg6={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=5, tmp___1=5, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}, tmp___5={0:0}, tmp___6=0, tmp___7=1] [L6185] COND TRUE ldv_state_variable_1 != 0 [L6186] CALL choose_timer_1(ldv_timer_list_1) [L6114] LDV_IN_INTERRUPT = 2 [L6115] EXPR timer->data [L6115] EXPR timer->function [L6115] CALL (*(timer->function))(timer->data) [L5877] struct net_device *dev ; [L5878] hdlc_device *hdlc ; [L5879] struct hdlc_device *tmp ; [L5880] struct cisco_state *st ; [L5881] struct cisco_state *tmp___0 ; [L5882] __u32 tmp___1 ; [L5883] __u32 tmp___2 ; [L5885] dev = (struct net_device *)arg VAL [\old(arg)=0, __this_module={0:0}, arg=0, cisco_header_ops={17:0}, dev={0:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5886] CALL, EXPR dev_to_hdlc(dev) VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5638] void *tmp ; [L5640] CALL, EXPR netdev_priv((struct net_device const *)dev) [L5595] return ((void *)dev + 3264U); VAL [\result={0:3264}, __this_module={0:0}, cisco_header_ops={17:0}, dev={0:0}, dev={0:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5640] RET, EXPR netdev_priv((struct net_device const *)dev) [L5640] tmp = netdev_priv((struct net_device const *)dev) [L5641] return ((struct hdlc_device *)tmp); VAL [\result={0:3264}, __this_module={0:0}, cisco_header_ops={17:0}, dev={0:0}, dev={0:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:3264}] [L5886] RET, EXPR dev_to_hdlc(dev) VAL [\old(arg)=0, __this_module={0:0}, arg=0, cisco_header_ops={17:0}, dev={0:0}, dev_to_hdlc(dev)={0:3264}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5886] tmp = dev_to_hdlc(dev) [L5887] hdlc = tmp VAL [\old(arg)=0, __this_module={0:0}, arg=0, cisco_header_ops={17:0}, dev={0:0}, hdlc={0:3264}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:3264}] [L5888] CALL, EXPR state(hdlc) VAL [__this_module={0:0}, cisco_header_ops={17:0}, hdlc={0:3264}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5670] EXPR hdlc->state [L5670] return ((struct cisco_state *)hdlc->state); [L5888] RET, EXPR state(hdlc) VAL [\old(arg)=0, __this_module={0:0}, arg=0, cisco_header_ops={17:0}, dev={0:0}, hdlc={0:3264}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, state(hdlc)={0:0}, tmp={0:3264}] [L5888] tmp___0 = state(hdlc) [L5889] st = tmp___0 VAL [\old(arg)=0, __this_module={0:0}, arg=0, cisco_header_ops={17:0}, dev={0:0}, hdlc={0:3264}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, st={0:0}, tmp={0:3264}, tmp___0={0:0}] [L5890] CALL spin_lock(& st->lock) VAL [__this_module={0:0}, cisco_header_ops={17:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5263] FCALL _raw_spin_lock(& lock->ldv_6338.rlock) [L5890] RET spin_lock(& st->lock) VAL [\old(arg)=0, __this_module={0:0}, arg=0, cisco_header_ops={17:0}, dev={0:0}, hdlc={0:3264}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, st={0:0}, tmp={0:3264}, tmp___0={0:0}] [L5891] EXPR st->up [L5891] st->up != 0 && (long )((st->last_poll + (unsigned long )(st->settings.timeout * 250U)) - (unsigned long )jiffies) < 0L [L5891] EXPR st->last_poll [L5891] EXPR st->settings.timeout [L5891] st->up != 0 && (long )((st->last_poll + (unsigned long )(st->settings.timeout * 250U)) - (unsigned long )jiffies) < 0L VAL [\old(arg)=0, __this_module={0:0}, arg=0, cisco_header_ops={17:0}, dev={0:0}, hdlc={0:3264}, jiffies=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, st={0:0}, st->last_poll=0, st->settings.timeout=0, st->up=2, st->up != 0 && (long )((st->last_poll + (unsigned long )(st->settings.timeout * 250U)) - (unsigned long )jiffies) < 0L=0, tmp={0:3264}, tmp___0={0:0}] [L5891] COND FALSE !(st->up != 0 && (long )((st->last_poll + (unsigned long )(st->settings.timeout * 250U)) - (unsigned long )jiffies) < 0L) [L5897] EXPR st->rxseq VAL [\old(arg)=0, __this_module={0:0}, arg=0, cisco_header_ops={17:0}, dev={0:0}, hdlc={0:3264}, jiffies=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, st={0:0}, st->rxseq=0, tmp={0:3264}, tmp___0={0:0}] [L5897] CALL, EXPR __fswab32(st->rxseq) VAL [__this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5128] __u32 tmp ; [L5130] CALL, EXPR __arch_swab32(val) [L5117] return (val); VAL [\old(val)=0, \result=0, __this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, val=0] [L5130] RET, EXPR __arch_swab32(val) [L5130] tmp = __arch_swab32(val) [L5131] return (tmp); VAL [\old(val)=0, \result=0, __this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp=0, val=0] [L5897] RET, EXPR __fswab32(st->rxseq) VAL [\old(arg)=0, __fswab32(st->rxseq)=0, __this_module={0:0}, arg=0, cisco_header_ops={17:0}, dev={0:0}, hdlc={0:3264}, jiffies=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, st={0:0}, st->rxseq=0, tmp={0:3264}, tmp___0={0:0}] [L5897] tmp___1 = __fswab32(st->rxseq) [L5898] EXPR st->txseq [L5898] st->txseq = st->txseq + 1U [L5899] EXPR st->txseq VAL [\old(arg)=0, __this_module={0:0}, arg=0, cisco_header_ops={17:0}, dev={0:0}, hdlc={0:3264}, jiffies=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, st={0:0}, st->txseq=0, tmp={0:3264}, tmp___0={0:0}, tmp___1=0] [L5899] CALL, EXPR __fswab32(st->txseq) VAL [__this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5128] __u32 tmp ; [L5130] CALL, EXPR __arch_swab32(val) [L5117] return (val); VAL [\old(val)=0, \result=0, __this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, val=0] [L5130] RET, EXPR __arch_swab32(val) [L5130] tmp = __arch_swab32(val) [L5131] return (tmp); VAL [\old(val)=0, \result=0, __this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp=0, val=0] [L5899] RET, EXPR __fswab32(st->txseq) VAL [\old(arg)=0, __fswab32(st->txseq)=0, __this_module={0:0}, arg=0, cisco_header_ops={17:0}, dev={0:0}, hdlc={0:3264}, jiffies=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, st={0:0}, st->txseq=0, tmp={0:3264}, tmp___0={0:0}, tmp___1=0] [L5899] tmp___2 = __fswab32(st->txseq) [L5900] CALL cisco_keepalive_send(dev, 2U, tmp___2, tmp___1) VAL [\old(last_index)=0, __this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5695] struct sk_buff *skb ; [L5696] struct cisco_packet *data ; [L5697] __u32 tmp ; [L5698] __u32 tmp___0 ; [L5700] CALL, EXPR ldv_dev_alloc_skb_12(22U) [L6356] struct sk_buff *tmp ; VAL [\old(last_index)=0, \old(length)=22, __this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, length=22, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L6358] CALL, EXPR ldv_skb_alloc() VAL [\old(last_index)=0, __this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L6512] void *skb ; [L6513] void *tmp___7 ; VAL [\old(last_index)=0, __this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L6515] CALL, EXPR ldv_zalloc(sizeof(struct sk_buff___0 )) VAL [\old(last_index)=0, __this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5519] void *p ; [L5520] void *tmp ; [L5521] int tmp___0 ; [L5523] tmp___0 = __VERIFIER_nondet_int() [L5524] COND FALSE !(tmp___0 != 0) [L5527] EXPR, FCALL calloc(1UL, size) [L5527] tmp = calloc(1UL, size) [L5528] p = tmp VAL [\old(last_index)=0, \old(size)=248, __this_module={0:0}, calloc(1UL, size)={4611686018427387905:0}, cisco_header_ops={17:0}, jiffies=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, p={4611686018427387905:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=248, tmp={4611686018427387905:0}, tmp___0=0] [L5529] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, \old(last_index)=0, __this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5498] COND FALSE !(!cond) VAL [\old(cond)=1, \old(last_index)=0, __this_module={0:0}, cisco_header_ops={17:0}, cond=1, jiffies=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5529] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(last_index)=0, \old(size)=248, __this_module={0:0}, calloc(1UL, size)={4611686018427387905:0}, cisco_header_ops={17:0}, jiffies=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, p={4611686018427387905:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=248, tmp={4611686018427387905:0}, tmp___0=0] [L5530] return (p); VAL [\old(last_index)=0, \old(size)=248, \result={4611686018427387905:0}, __this_module={0:0}, calloc(1UL, size)={4611686018427387905:0}, cisco_header_ops={17:0}, jiffies=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, p={4611686018427387905:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=248, tmp={4611686018427387905:0}, tmp___0=0] [L6515] RET, EXPR ldv_zalloc(sizeof(struct sk_buff___0 )) VAL [\old(last_index)=0, __this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(sizeof(struct sk_buff___0 ))={4611686018427387905:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L6515] tmp___7 = ldv_zalloc(sizeof(struct sk_buff___0 )) [L6516] skb = (struct sk_buff___0 *)tmp___7 VAL [\old(last_index)=0, __this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, skb={4611686018427387905:0}, tmp___7={4611686018427387905:0}] [L6517] COND FALSE !(! skb) [L6520] CALL ldv_set_add(LDV_SKBS, skb) [L6388] int i ; [L6390] i = 0 VAL [\old(last_index)=0, __this_module={0:0}, cisco_header_ops={17:0}, e={4611686018427387905:0}, e={4611686018427387905:0}, i=0, jiffies=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set={0:0}, set={0:0}, set_impl={18:0}] [L6391] COND TRUE 1 VAL [\old(last_index)=0, __this_module={0:0}, cisco_header_ops={17:0}, e={4611686018427387905:0}, e={4611686018427387905:0}, i=0, jiffies=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set={0:0}, set={0:0}, set_impl={18:0}] [L6392] COND FALSE !(i < last_index) VAL [\old(last_index)=0, __this_module={0:0}, cisco_header_ops={17:0}, e={4611686018427387905:0}, e={4611686018427387905:0}, i=0, jiffies=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set={0:0}, set={0:0}, set_impl={18:0}] [L6402] COND TRUE last_index < 15 [L6403] set_impl[last_index] = e [L6404] last_index = last_index + 1 VAL [\old(last_index)=0, __this_module={0:0}, cisco_header_ops={17:0}, e={4611686018427387905:0}, e={4611686018427387905:0}, i=0, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set={0:0}, set={0:0}, set_impl={18:0}] [L6520] RET ldv_set_add(LDV_SKBS, skb) [L6521] return (skb); VAL [\old(last_index)=0, \result={4611686018427387905:0}, __this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, skb={4611686018427387905:0}, tmp___7={4611686018427387905:0}] [L6358] RET, EXPR ldv_skb_alloc() VAL [\old(last_index)=0, \old(length)=22, __this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, ldv_skb_alloc()={4611686018427387905:0}, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, length=22, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L6358] tmp = ldv_skb_alloc() [L6359] return (tmp); VAL [\old(last_index)=0, \old(length)=22, \result={4611686018427387905:0}, __this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, length=22, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={4611686018427387905:0}] [L5700] RET, EXPR ldv_dev_alloc_skb_12(22U) [L5700] skb = ldv_dev_alloc_skb_12(22U) [L5701] COND FALSE !((unsigned long )skb == (unsigned long )((struct sk_buff *)0)) [L5706] CALL skb_reserve(skb, 4) [L5475] EXPR skb->data [L5475] skb->data = skb->data + (unsigned long )len [L5476] EXPR skb->tail [L5476] skb->tail = skb->tail + (sk_buff_data_t )len [L5706] RET skb_reserve(skb, 4) [L5707] CALL cisco_hard_header(skb, dev, 32821, (void const *)0, (void const *)0, 0U) VAL [\old(last_index)=0, __this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5676] struct hdlc_header *data ; [L5677] __u16 tmp ; [L5679] CALL skb_push(skb, 4U) [L6687] CALL, EXPR ldv_malloc(sizeof(unsigned char)) VAL [\old(last_index)=0, \old(size)=1, __this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5502] void *p ; [L5503] void *tmp ; [L5504] int tmp___0 ; [L5506] tmp___0 = __VERIFIER_nondet_int() [L5507] COND TRUE tmp___0 != 0 [L5508] return ((void *)0); VAL [\old(last_index)=0, \old(size)=1, \result={0:0}, __this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=1, tmp___0=2147483648] [L6687] RET, EXPR ldv_malloc(sizeof(unsigned char)) VAL [\old(arg1)=4, \old(last_index)=0, __this_module={0:0}, arg0={4611686018427387905:0}, arg0={4611686018427387905:0}, arg1=4, cisco_header_ops={17:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_malloc(sizeof(unsigned char))={0:0}, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L6687] return ldv_malloc(sizeof(unsigned char)); [L5679] RET skb_push(skb, 4U) [L5680] EXPR skb->data [L5680] data = (struct hdlc_header *)skb->data [L5681] COND TRUE (unsigned int )type == 32821U [L5682] data->address = 143U VAL [\old(last_index)=0, \old(len)=0, \old(type)=32821, __this_module={0:0}, cisco_header_ops={17:0}, daddr={0:0}, daddr={0:0}, data={0:0}, dev={0:0}, dev={0:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, len=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, saddr={0:0}, saddr={0:0}, set_impl={18:0}, skb={4611686018427387905:0}, skb={4611686018427387905:0}, type=32821] [L5686] data->control = 0U VAL [\old(last_index)=0, \old(len)=0, \old(type)=32821, __this_module={0:0}, cisco_header_ops={17:0}, daddr={0:0}, daddr={0:0}, data={0:0}, dev={0:0}, dev={0:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, len=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, saddr={0:0}, saddr={0:0}, set_impl={18:0}, skb={4611686018427387905:0}, skb={4611686018427387905:0}, type=32821] [L5687] CALL, EXPR __fswab16((int )type) VAL [\old(last_index)=0, \old(val)=32821, __this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5123] return ((__u16 )((int )((short )((int )val << 8)) | (int )((short )((int )val >> 8)))); VAL [\old(last_index)=0, \old(val)=32821, \result=13696, __this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, val=32821] [L5687] RET, EXPR __fswab16((int )type) VAL [\old(last_index)=0, \old(len)=0, \old(type)=32821, __fswab16((int )type)=13696, __this_module={0:0}, cisco_header_ops={17:0}, daddr={0:0}, daddr={0:0}, data={0:0}, dev={0:0}, dev={0:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, len=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, saddr={0:0}, saddr={0:0}, set_impl={18:0}, skb={4611686018427387905:0}, skb={4611686018427387905:0}, type=32821] [L5687] tmp = __fswab16((int )type) [L5688] data->protocol = tmp [L5689] return (4); VAL [\old(last_index)=0, \old(len)=0, \old(type)=32821, \result=4, __this_module={0:0}, cisco_header_ops={17:0}, daddr={0:0}, daddr={0:0}, data={0:0}, dev={0:0}, dev={0:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, len=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, saddr={0:0}, saddr={0:0}, set_impl={18:0}, skb={4611686018427387905:0}, skb={4611686018427387905:0}, tmp=13696, type=32821] [L5707] RET cisco_hard_header(skb, dev, 32821, (void const *)0, (void const *)0, 0U) VAL [\old(last_index)=0, \old(par1)=0, \old(par2)=0, \old(type)=2, __this_module={0:0}, cisco_hard_header(skb, dev, 32821, (void const *)0, (void const *)0, 0U)=4, cisco_header_ops={17:0}, dev={0:0}, dev={0:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, par1=0, par2=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, skb={4611686018427387905:0}, type=2] [L5708] EXPR skb->data [L5708] data = (struct cisco_packet *)skb->data + 4U [L5709] CALL, EXPR __fswab32(type) VAL [\old(last_index)=0, __this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5128] __u32 tmp ; [L5130] CALL, EXPR __arch_swab32(val) [L5117] return (val); VAL [\old(last_index)=0, \old(val)=2, \result=2, __this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, val=2] [L5130] RET, EXPR __arch_swab32(val) [L5130] tmp = __arch_swab32(val) [L5131] return (tmp); VAL [\old(last_index)=0, \old(val)=2, \result=2, __this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp=2, val=2] [L5709] RET, EXPR __fswab32(type) VAL [\old(last_index)=0, \old(par1)=0, \old(par2)=0, \old(type)=2, __fswab32(type)=2, __this_module={0:0}, cisco_header_ops={17:0}, data={0:72}, dev={0:0}, dev={0:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, par1=0, par2=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, skb={4611686018427387905:0}, type=2] [L5709] tmp = __fswab32(type) [L5710] data->type = tmp [L5711] data->par1 = par1 [L5712] data->par2 = par2 [L5713] data->rel = 65535U VAL [\old(last_index)=0, \old(par1)=0, \old(par2)=0, \old(type)=2, __this_module={0:0}, cisco_header_ops={17:0}, data={0:72}, dev={0:0}, dev={0:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, par1=0, par2=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, skb={4611686018427387905:0}, tmp=2, type=2] [L5714] CALL, EXPR __fswab32(((__u32 )jiffies + 75000U) * 4U) VAL [\old(last_index)=0, __this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5128] __u32 tmp ; [L5130] CALL, EXPR __arch_swab32(val) [L5117] return (val); VAL [\old(last_index)=0, \old(val)=300000, \result=300000, __this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, val=300000] [L5130] RET, EXPR __arch_swab32(val) [L5130] tmp = __arch_swab32(val) [L5131] return (tmp); VAL [\old(last_index)=0, \old(val)=300000, \result=300000, __this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp=300000, val=300000] [L5714] RET, EXPR __fswab32(((__u32 )jiffies + 75000U) * 4U) VAL [\old(last_index)=0, \old(par1)=0, \old(par2)=0, \old(type)=2, __fswab32(((__u32 )jiffies + 75000U) * 4U)=300000, __this_module={0:0}, cisco_header_ops={17:0}, data={0:72}, dev={0:0}, dev={0:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, par1=0, par2=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, skb={4611686018427387905:0}, tmp=2, type=2] [L5714] tmp___0 = __fswab32(((__u32 )jiffies + 75000U) * 4U) [L5715] data->time = tmp___0 [L5716] CALL skb_put(skb, 18U) [L6690] EXPR arg0->data [L6690] EXPR arg0->tail [L6690] unsigned char *ret_val = arg0->data + arg0->tail; [L6691] EXPR arg0->tail [L6691] arg0->tail += arg1 [L6692] return ret_val; VAL [\old(arg1)=18, \old(last_index)=0, \result={0:4}, __this_module={0:0}, arg0={4611686018427387905:0}, arg0={4611686018427387905:0}, arg1=18, cisco_header_ops={17:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, ret_val={0:4}, set_impl={18:0}] [L5716] RET skb_put(skb, 18U) [L5717] skb->priority = 7U [L5718] skb->dev = dev [L5719] CALL skb_reset_network_header(skb) [L5483] EXPR skb->data [L5483] EXPR skb->head [L5483] skb->network_header = (int )((__u16 )((long )skb->data)) - (int )((__u16 )((long )skb->head)) [L5719] RET skb_reset_network_header(skb) [L5720] CALL dev_queue_xmit(skb) [L6643] return __VERIFIER_nondet_int(); [L5720] RET dev_queue_xmit(skb) [L5900] RET cisco_keepalive_send(dev, 2U, tmp___2, tmp___1) VAL [\old(arg)=0, __this_module={0:0}, arg=0, cisco_header_ops={17:0}, dev={0:0}, hdlc={0:3264}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, st={0:0}, tmp={0:3264}, tmp___0={0:0}, tmp___1=0, tmp___2=0] [L5901] CALL spin_unlock(& st->lock) VAL [__this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5270] FCALL _raw_spin_unlock(& lock->ldv_6338.rlock) [L5901] RET spin_unlock(& st->lock) VAL [\old(arg)=0, __this_module={0:0}, arg=0, cisco_header_ops={17:0}, dev={0:0}, hdlc={0:3264}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, st={0:0}, tmp={0:3264}, tmp___0={0:0}, tmp___1=0, tmp___2=0] [L5902] EXPR st->settings.interval [L5902] st->timer.expires = (unsigned long )(st->settings.interval * 250U) + (unsigned long )jiffies [L5903] st->timer.function = & cisco_timer [L5904] st->timer.data = arg VAL [\old(arg)=0, __this_module={0:0}, arg=0, cisco_header_ops={17:0}, dev={0:0}, hdlc={0:3264}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, st={0:0}, tmp={0:3264}, tmp___0={0:0}, tmp___1=0, tmp___2=0] [L5905] FCALL add_timer(& st->timer) VAL [\old(arg)=0, __this_module={0:0}, arg=0, cisco_header_ops={17:0}, dev={0:0}, hdlc={0:3264}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, st={0:0}, tmp={0:3264}, tmp___0={0:0}, tmp___1=0, tmp___2=0] [L6115] RET (*(timer->function))(timer->data) [L6116] LDV_IN_INTERRUPT = 1 [L6117] ldv_timer_state_1 = 2 VAL [__this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=2, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, timer={0:0}, timer={0:0}] [L6186] RET choose_timer_1(ldv_timer_list_1) [L6182] tmp___6 = __VERIFIER_nondet_int() [L6184] case 0: [L6190] case 1: VAL [__this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=2, ldvarg0={0:0}, ldvarg1=5, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=5, ldvarg5={0:0}, ldvarg6={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=5, tmp___1=5, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}, tmp___5={0:0}, tmp___6=1, tmp___7=1] [L6191] COND TRUE ldv_state_variable_0 != 0 [L6192] tmp___7 = __VERIFIER_nondet_int() [L6194] case 0: VAL [__this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=2, ldvarg0={0:0}, ldvarg1=5, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=5, ldvarg5={0:0}, ldvarg6={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=5, tmp___1=5, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}, tmp___5={0:0}, tmp___6=1, tmp___7=0] [L6195] COND TRUE ldv_state_variable_0 == 3 && ref_cnt == 0 [L6196] CALL mod_exit() [L6074] FCALL unregister_hdlc_protocol(& proto) [L6196] RET mod_exit() [L6197] ldv_state_variable_0 = 2 VAL [__this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=2, ldvarg0={0:0}, ldvarg1=5, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=5, ldvarg5={0:0}, ldvarg6={0:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=5, tmp___1=5, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}, tmp___5={0:0}, tmp___6=1, tmp___7=0] [L6315] CALL ldv_check_final_state() [L6579] int tmp___7 ; [L6581] CALL, EXPR ldv_set_is_empty(LDV_SKBS) [L6470] return (last_index == 0); VAL [\result=0, __this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=2, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set={0:0}, set={0:0}, set_impl={18:0}] [L6581] RET, EXPR ldv_set_is_empty(LDV_SKBS) [L6581] tmp___7 = ldv_set_is_empty(LDV_SKBS) [L6582] COND FALSE !(\read(tmp___7)) VAL [__this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=2, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp___7=0] [L6584] CALL ldv_error() VAL [__this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=2, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] [L5554] reach_error() VAL [__this_module={0:0}, cisco_header_ops={17:0}, jiffies=0, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=2, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 33 procedures, 489 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.8s, OverallIterations: 6, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2090 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2087 mSDsluCounter, 15709 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12081 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 237 IncrementalHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 3628 mSDtfsCounter, 237 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 461 GetRequests, 435 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1884occurred in iteration=5, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 36 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 640 NumberOfCodeBlocks, 640 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 452 ConstructedInterpolants, 0 QuantifiedInterpolants, 646 SizeOfPredicates, 16 NumberOfNonLiveVariables, 2034 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 419/419 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-12-28 03:58:37,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE