./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 c3fed411 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-tmp.no-commuhash-c3fed41 [2021-12-18 04:16:27,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 04:16:27,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 04:16:27,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 04:16:27,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 04:16:27,297 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 04:16:27,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 04:16:27,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 04:16:27,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 04:16:27,306 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 04:16:27,306 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 04:16:27,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 04:16:27,308 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 04:16:27,309 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 04:16:27,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 04:16:27,315 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 04:16:27,316 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 04:16:27,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 04:16:27,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 04:16:27,324 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 04:16:27,325 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 04:16:27,326 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 04:16:27,327 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 04:16:27,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 04:16:27,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 04:16:27,332 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 04:16:27,332 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 04:16:27,333 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 04:16:27,333 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 04:16:27,334 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 04:16:27,334 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 04:16:27,335 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 04:16:27,336 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 04:16:27,337 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 04:16:27,338 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 04:16:27,338 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 04:16:27,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 04:16:27,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 04:16:27,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 04:16:27,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 04:16:27,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 04:16:27,341 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 04:16:27,364 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 04:16:27,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 04:16:27,364 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 04:16:27,365 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 04:16:27,365 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 04:16:27,365 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 04:16:27,366 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 04:16:27,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 04:16:27,366 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 04:16:27,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 04:16:27,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 04:16:27,367 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 04:16:27,367 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 04:16:27,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 04:16:27,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 04:16:27,368 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 04:16:27,368 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 04:16:27,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 04:16:27,368 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 04:16:27,369 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 04:16:27,369 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 04:16:27,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 04:16:27,369 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 04:16:27,369 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 04:16:27,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 04:16:27,370 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 04:16:27,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 04:16:27,370 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 04:16:27,370 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 04:16:27,370 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 04:16:27,370 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 04:16:27,370 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa96c32cec5c31a75c9cdd0122db38bdeb379765e4b6aca9c91d1bb4fedaed44 [2021-12-18 04:16:27,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 04:16:27,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 04:16:27,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 04:16:27,559 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 04:16:27,560 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 04:16:27,561 INFO L432 ainManager$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 [2021-12-18 04:16:27,621 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef11eb323/edbcc58a9a6e4088860c852775757d24/FLAGfa7541a7e [2021-12-18 04:16:28,150 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 04:16:28,151 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 [2021-12-18 04:16:28,180 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef11eb323/edbcc58a9a6e4088860c852775757d24/FLAGfa7541a7e [2021-12-18 04:16:28,361 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef11eb323/edbcc58a9a6e4088860c852775757d24 [2021-12-18 04:16:28,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 04:16:28,364 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 04:16:28,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 04:16:28,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 04:16:28,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 04:16:28,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 04:16:28" (1/1) ... [2021-12-18 04:16:28,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@653eef1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:16:28, skipping insertion in model container [2021-12-18 04:16:28,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 04:16:28" (1/1) ... [2021-12-18 04:16:28,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 04:16:28,459 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 04:16:28,968 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] [2021-12-18 04:16:29,176 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 04:16:29,190 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 04:16:29,285 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] [2021-12-18 04:16:29,382 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 04:16:29,410 INFO L208 MainTranslator]: Completed translation [2021-12-18 04:16:29,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:16:29 WrapperNode [2021-12-18 04:16:29,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 04:16:29,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 04:16:29,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 04:16:29,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 04:16:29,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:16:29" (1/1) ... [2021-12-18 04:16:29,454 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:16:29" (1/1) ... [2021-12-18 04:16:29,522 INFO L137 Inliner]: procedures = 146, calls = 357, calls flagged for inlining = 63, calls inlined = 60, statements flattened = 1425 [2021-12-18 04:16:29,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 04:16:29,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 04:16:29,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 04:16:29,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 04:16:29,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:16:29" (1/1) ... [2021-12-18 04:16:29,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:16:29" (1/1) ... [2021-12-18 04:16:29,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:16:29" (1/1) ... [2021-12-18 04:16:29,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:16:29" (1/1) ... [2021-12-18 04:16:29,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:16:29" (1/1) ... [2021-12-18 04:16:29,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:16:29" (1/1) ... [2021-12-18 04:16:29,605 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:16:29" (1/1) ... [2021-12-18 04:16:29,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 04:16:29,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 04:16:29,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 04:16:29,614 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 04:16:29,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:16:29" (1/1) ... [2021-12-18 04:16:29,619 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 04:16:29,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:16:29,638 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) [2021-12-18 04:16:29,640 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 [2021-12-18 04:16:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-18 04:16:29,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-18 04:16:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 04:16:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 04:16:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 04:16:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 04:16:29,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 04:16:29,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 04:16:29,673 INFO L130 BoogieDeclarations]: Found specification of procedure state [2021-12-18 04:16:29,673 INFO L138 BoogieDeclarations]: Found implementation of procedure state [2021-12-18 04:16:29,673 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2021-12-18 04:16:29,673 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2021-12-18 04:16:29,673 INFO L130 BoogieDeclarations]: Found specification of procedure cisco_ioctl [2021-12-18 04:16:29,673 INFO L138 BoogieDeclarations]: Found implementation of procedure cisco_ioctl [2021-12-18 04:16:29,673 INFO L130 BoogieDeclarations]: Found specification of procedure cisco_rx [2021-12-18 04:16:29,674 INFO L138 BoogieDeclarations]: Found implementation of procedure cisco_rx [2021-12-18 04:16:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-18 04:16:29,674 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-18 04:16:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure cisco_type_trans [2021-12-18 04:16:29,674 INFO L138 BoogieDeclarations]: Found implementation of procedure cisco_type_trans [2021-12-18 04:16:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 04:16:29,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 04:16:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure netif_dormant_on [2021-12-18 04:16:29,675 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_dormant_on [2021-12-18 04:16:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-12-18 04:16:29,675 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-12-18 04:16:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-12-18 04:16:29,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-12-18 04:16:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 04:16:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 04:16:29,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 04:16:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 04:16:29,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 04:16:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 04:16:29,676 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 04:16:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 04:16:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 04:16:29,676 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 04:16:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure cisco_hard_header [2021-12-18 04:16:29,676 INFO L138 BoogieDeclarations]: Found implementation of procedure cisco_hard_header [2021-12-18 04:16:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-18 04:16:29,677 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-18 04:16:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 04:16:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 04:16:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 04:16:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-12-18 04:16:29,677 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-12-18 04:16:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 04:16:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2021-12-18 04:16:29,678 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2021-12-18 04:16:29,678 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-12-18 04:16:29,678 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-12-18 04:16:29,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 04:16:29,678 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-18 04:16:29,678 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-18 04:16:29,678 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 04:16:29,678 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 04:16:29,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 04:16:29,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 04:16:29,679 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-18 04:16:29,679 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-18 04:16:29,679 INFO L130 BoogieDeclarations]: Found specification of procedure cisco_keepalive_send [2021-12-18 04:16:29,679 INFO L138 BoogieDeclarations]: Found implementation of procedure cisco_keepalive_send [2021-12-18 04:16:29,679 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-18 04:16:29,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-18 04:16:29,679 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-18 04:16:29,679 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-18 04:16:29,680 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 04:16:29,680 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 04:16:29,680 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 04:16:29,680 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 04:16:29,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 04:16:29,680 INFO L130 BoogieDeclarations]: Found specification of procedure linkwatch_fire_event [2021-12-18 04:16:29,680 INFO L138 BoogieDeclarations]: Found implementation of procedure linkwatch_fire_event [2021-12-18 04:16:29,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 04:16:29,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-18 04:16:29,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-18 04:16:29,681 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-18 04:16:29,681 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-18 04:16:29,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 04:16:29,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 04:16:29,981 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 04:16:29,983 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 04:16:30,146 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 04:16:30,668 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 04:16:30,675 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 04:16:30,676 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-18 04:16:30,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 04:16:30 BoogieIcfgContainer [2021-12-18 04:16:30,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 04:16:30,679 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 04:16:30,679 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 04:16:30,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 04:16:30,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 04:16:28" (1/3) ... [2021-12-18 04:16:30,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d004a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 04:16:30, skipping insertion in model container [2021-12-18 04:16:30,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:16:29" (2/3) ... [2021-12-18 04:16:30,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d004a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 04:16:30, skipping insertion in model container [2021-12-18 04:16:30,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 04:16:30" (3/3) ... [2021-12-18 04:16:30,683 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 [2021-12-18 04:16:30,687 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 04:16:30,687 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 04:16:30,719 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 04:16:30,723 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 [2021-12-18 04:16:30,724 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 04:16:30,741 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) [2021-12-18 04:16:30,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-18 04:16:30,747 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:16:30,748 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] [2021-12-18 04:16:30,748 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:16:30,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:16:30,752 INFO L85 PathProgramCache]: Analyzing trace with hash 742124414, now seen corresponding path program 1 times [2021-12-18 04:16:30,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:16:30,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495238125] [2021-12-18 04:16:30,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:16:30,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:16:30,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:30,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:16:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:30,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:16:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:31,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:16:31,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:31,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:16:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:31,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:16:31,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:31,038 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-18 04:16:31,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:16:31,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495238125] [2021-12-18 04:16:31,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495238125] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:16:31,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:16:31,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 04:16:31,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644689023] [2021-12-18 04:16:31,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:16:31,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 04:16:31,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:16:31,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 04:16:31,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 04:16:31,065 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) [2021-12-18 04:16:31,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:16:31,950 INFO L93 Difference]: Finished difference Result 1541 states and 2218 transitions. [2021-12-18 04:16:31,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 04:16:31,952 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 [2021-12-18 04:16:31,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:16:31,973 INFO L225 Difference]: With dead ends: 1541 [2021-12-18 04:16:31,973 INFO L226 Difference]: Without dead ends: 1042 [2021-12-18 04:16:31,982 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 [2021-12-18 04:16:31,990 INFO L933 BasicCegarLoop]: 706 mSDtfsCounter, 1084 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 282 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 1517 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 282 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-18 04:16:31,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1162 Valid, 1517 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [282 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-18 04:16:32,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2021-12-18 04:16:32,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 924. [2021-12-18 04:16:32,117 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) [2021-12-18 04:16:32,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1284 transitions. [2021-12-18 04:16:32,124 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1284 transitions. Word has length 47 [2021-12-18 04:16:32,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:16:32,124 INFO L470 AbstractCegarLoop]: Abstraction has 924 states and 1284 transitions. [2021-12-18 04:16:32,124 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) [2021-12-18 04:16:32,125 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1284 transitions. [2021-12-18 04:16:32,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-18 04:16:32,127 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:16:32,127 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] [2021-12-18 04:16:32,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 04:16:32,127 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:16:32,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:16:32,128 INFO L85 PathProgramCache]: Analyzing trace with hash -2097093995, now seen corresponding path program 1 times [2021-12-18 04:16:32,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:16:32,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854110948] [2021-12-18 04:16:32,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:16:32,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:16:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:32,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:16:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:32,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:16:32,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:32,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:16:32,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:32,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:16:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:32,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:16:32,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:32,267 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-18 04:16:32,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:16:32,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854110948] [2021-12-18 04:16:32,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854110948] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:16:32,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:16:32,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 04:16:32,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071618429] [2021-12-18 04:16:32,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:16:32,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 04:16:32,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:16:32,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 04:16:32,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 04:16:32,271 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) [2021-12-18 04:16:32,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:16:32,864 INFO L93 Difference]: Finished difference Result 1951 states and 2732 transitions. [2021-12-18 04:16:32,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 04:16:32,865 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 [2021-12-18 04:16:32,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:16:32,872 INFO L225 Difference]: With dead ends: 1951 [2021-12-18 04:16:32,872 INFO L226 Difference]: Without dead ends: 1041 [2021-12-18 04:16:32,874 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 [2021-12-18 04:16:32,878 INFO L933 BasicCegarLoop]: 740 mSDtfsCounter, 987 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-18 04:16:32,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1049 Valid, 1627 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-18 04:16:32,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2021-12-18 04:16:32,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 923. [2021-12-18 04:16:32,924 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) [2021-12-18 04:16:32,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1280 transitions. [2021-12-18 04:16:32,928 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1280 transitions. Word has length 50 [2021-12-18 04:16:32,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:16:32,929 INFO L470 AbstractCegarLoop]: Abstraction has 923 states and 1280 transitions. [2021-12-18 04:16:32,930 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) [2021-12-18 04:16:32,930 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1280 transitions. [2021-12-18 04:16:32,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-18 04:16:32,938 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:16:32,938 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] [2021-12-18 04:16:32,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 04:16:32,939 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:16:32,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:16:32,939 INFO L85 PathProgramCache]: Analyzing trace with hash 171125928, now seen corresponding path program 1 times [2021-12-18 04:16:32,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:16:32,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7745029] [2021-12-18 04:16:32,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:16:32,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:16:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:33,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:16:33,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:33,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:16:33,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:33,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:16:33,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:33,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:16:33,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:33,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:16:33,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:33,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 04:16:33,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:33,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 04:16:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:33,115 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-12-18 04:16:33,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:16:33,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7745029] [2021-12-18 04:16:33,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7745029] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:16:33,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:16:33,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 04:16:33,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085566560] [2021-12-18 04:16:33,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:16:33,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 04:16:33,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:16:33,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 04:16:33,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 04:16:33,119 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) [2021-12-18 04:16:33,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:16:33,970 INFO L93 Difference]: Finished difference Result 2974 states and 4185 transitions. [2021-12-18 04:16:33,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 04:16:33,971 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 [2021-12-18 04:16:33,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:16:33,980 INFO L225 Difference]: With dead ends: 2974 [2021-12-18 04:16:33,984 INFO L226 Difference]: Without dead ends: 2060 [2021-12-18 04:16:33,988 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 [2021-12-18 04:16:33,991 INFO L933 BasicCegarLoop]: 690 mSDtfsCounter, 1091 mSDsluCounter, 2066 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 2756 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-18 04:16:33,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1173 Valid, 2756 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-18 04:16:33,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2060 states. [2021-12-18 04:16:34,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2060 to 1924. [2021-12-18 04:16:34,053 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) [2021-12-18 04:16:34,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1924 states to 1924 states and 2697 transitions. [2021-12-18 04:16:34,063 INFO L78 Accepts]: Start accepts. Automaton has 1924 states and 2697 transitions. Word has length 71 [2021-12-18 04:16:34,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:16:34,065 INFO L470 AbstractCegarLoop]: Abstraction has 1924 states and 2697 transitions. [2021-12-18 04:16:34,066 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) [2021-12-18 04:16:34,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1924 states and 2697 transitions. [2021-12-18 04:16:34,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-12-18 04:16:34,073 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:16:34,073 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] [2021-12-18 04:16:34,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 04:16:34,074 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:16:34,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:16:34,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1729160309, now seen corresponding path program 1 times [2021-12-18 04:16:34,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:16:34,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032195602] [2021-12-18 04:16:34,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:16:34,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:16:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:34,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:16:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:34,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:16:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:34,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:16:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:34,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:16:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:34,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:16:34,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:34,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 04:16:34,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:34,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 04:16:34,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:34,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-18 04:16:34,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:34,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-18 04:16:34,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:34,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-18 04:16:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:34,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 04:16:34,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:34,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:16:34,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:34,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:16:34,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:34,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 04:16:34,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:34,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 04:16:34,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:34,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 04:16:34,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:34,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-18 04:16:34,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:34,391 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2021-12-18 04:16:34,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:16:34,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032195602] [2021-12-18 04:16:34,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032195602] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 04:16:34,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735884379] [2021-12-18 04:16:34,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:16:34,392 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:16:34,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:16:34,394 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) [2021-12-18 04:16:34,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-18 04:16:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:34,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 961 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-18 04:16:34,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:16:34,901 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-18 04:16:34,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:16:34,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735884379] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:16:34,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 04:16:34,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7 [2021-12-18 04:16:34,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138700728] [2021-12-18 04:16:34,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:16:34,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 04:16:34,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:16:34,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 04:16:34,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-18 04:16:34,904 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) [2021-12-18 04:16:34,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:16:34,953 INFO L93 Difference]: Finished difference Result 3838 states and 5422 transitions. [2021-12-18 04:16:34,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 04:16:34,954 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 [2021-12-18 04:16:34,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:16:34,961 INFO L225 Difference]: With dead ends: 3838 [2021-12-18 04:16:34,962 INFO L226 Difference]: Without dead ends: 1928 [2021-12-18 04:16:34,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 173 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-18 04:16:34,968 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 [2021-12-18 04:16:34,969 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] [2021-12-18 04:16:34,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2021-12-18 04:16:35,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1924. [2021-12-18 04:16:35,014 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) [2021-12-18 04:16:35,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1924 states to 1924 states and 2696 transitions. [2021-12-18 04:16:35,023 INFO L78 Accepts]: Start accepts. Automaton has 1924 states and 2696 transitions. Word has length 141 [2021-12-18 04:16:35,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:16:35,023 INFO L470 AbstractCegarLoop]: Abstraction has 1924 states and 2696 transitions. [2021-12-18 04:16:35,023 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) [2021-12-18 04:16:35,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1924 states and 2696 transitions. [2021-12-18 04:16:35,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-18 04:16:35,028 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:16:35,028 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] [2021-12-18 04:16:35,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-18 04:16:35,241 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 [2021-12-18 04:16:35,242 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:16:35,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:16:35,242 INFO L85 PathProgramCache]: Analyzing trace with hash 568539780, now seen corresponding path program 1 times [2021-12-18 04:16:35,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:16:35,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76370579] [2021-12-18 04:16:35,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:16:35,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:16:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:35,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:16:35,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:35,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:16:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:35,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:16:35,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:35,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:16:35,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:35,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:16:35,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:35,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 04:16:35,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:35,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 04:16:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:35,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 04:16:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:35,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 04:16:35,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:35,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 04:16:35,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:35,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-18 04:16:35,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:35,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 04:16:35,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:35,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 04:16:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:35,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:16:35,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:35,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:16:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:35,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 04:16:35,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:35,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 04:16:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:35,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 04:16:35,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:35,743 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-18 04:16:35,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:16:35,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76370579] [2021-12-18 04:16:35,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76370579] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:16:35,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:16:35,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-12-18 04:16:35,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110372170] [2021-12-18 04:16:35,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:16:35,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-18 04:16:35,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:16:35,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-18 04:16:35,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2021-12-18 04:16:35,745 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) [2021-12-18 04:16:36,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:16:36,993 INFO L93 Difference]: Finished difference Result 3994 states and 5630 transitions. [2021-12-18 04:16:36,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-18 04:16:36,993 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 [2021-12-18 04:16:36,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:16:37,004 INFO L225 Difference]: With dead ends: 3994 [2021-12-18 04:16:37,004 INFO L226 Difference]: Without dead ends: 2084 [2021-12-18 04:16:37,009 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 [2021-12-18 04:16:37,010 INFO L933 BasicCegarLoop]: 620 mSDtfsCounter, 511 mSDsluCounter, 6191 mSDsCounter, 0 mSdLazyCounter, 1806 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 6811 SdHoareTripleChecker+Invalid, 2034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 1806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-18 04:16:37,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [532 Valid, 6811 Invalid, 2034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 1806 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-18 04:16:37,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2084 states. [2021-12-18 04:16:37,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2084 to 1954. [2021-12-18 04:16:37,065 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) [2021-12-18 04:16:37,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2728 transitions. [2021-12-18 04:16:37,071 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2728 transitions. Word has length 148 [2021-12-18 04:16:37,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:16:37,072 INFO L470 AbstractCegarLoop]: Abstraction has 1954 states and 2728 transitions. [2021-12-18 04:16:37,073 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) [2021-12-18 04:16:37,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2728 transitions. [2021-12-18 04:16:37,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-12-18 04:16:37,079 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:16:37,079 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] [2021-12-18 04:16:37,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 04:16:37,080 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:16:37,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:16:37,080 INFO L85 PathProgramCache]: Analyzing trace with hash -799997024, now seen corresponding path program 1 times [2021-12-18 04:16:37,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:16:37,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085754863] [2021-12-18 04:16:37,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:16:37,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:16:37,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-18 04:16:37,390 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-18 04:16:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-18 04:16:37,534 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-18 04:16:37,535 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-18 04:16:37,535 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-18 04:16:37,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 04:16:37,539 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-12-18 04:16:37,541 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-18 04:16:37,561 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:16:37,562 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:16:37,562 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:16:37,563 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:16:37,563 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:16:37,563 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:16:37,563 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:16:37,563 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:16:37,564 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:16:37,564 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:16:37,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 04:16:37 BoogieIcfgContainer [2021-12-18 04:16:37,642 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-18 04:16:37,642 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-18 04:16:37,642 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-18 04:16:37,642 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-18 04:16:37,643 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 04:16:30" (3/4) ... [2021-12-18 04:16:37,645 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-18 04:16:37,645 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-18 04:16:37,645 INFO L158 Benchmark]: Toolchain (without parser) took 9281.67ms. Allocated memory was 96.5MB in the beginning and 348.1MB in the end (delta: 251.7MB). Free memory was 55.8MB in the beginning and 169.6MB in the end (delta: -113.8MB). Peak memory consumption was 138.2MB. Max. memory is 16.1GB. [2021-12-18 04:16:37,646 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 96.5MB. Free memory was 51.4MB in the beginning and 51.3MB in the end (delta: 38.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-18 04:16:37,646 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1047.72ms. Allocated memory was 96.5MB in the beginning and 138.4MB in the end (delta: 41.9MB). Free memory was 55.6MB in the beginning and 88.7MB in the end (delta: -33.0MB). Peak memory consumption was 46.2MB. Max. memory is 16.1GB. [2021-12-18 04:16:37,646 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.09ms. Allocated memory is still 138.4MB. Free memory was 88.7MB in the beginning and 80.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-18 04:16:37,646 INFO L158 Benchmark]: Boogie Preprocessor took 88.81ms. Allocated memory is still 138.4MB. Free memory was 80.3MB in the beginning and 71.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-18 04:16:37,647 INFO L158 Benchmark]: RCFGBuilder took 1064.11ms. Allocated memory was 138.4MB in the beginning and 207.6MB in the end (delta: 69.2MB). Free memory was 71.9MB in the beginning and 133.5MB in the end (delta: -61.7MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2021-12-18 04:16:37,647 INFO L158 Benchmark]: TraceAbstraction took 6962.91ms. Allocated memory was 207.6MB in the beginning and 348.1MB in the end (delta: 140.5MB). Free memory was 133.5MB in the beginning and 169.6MB in the end (delta: -36.0MB). Peak memory consumption was 105.5MB. Max. memory is 16.1GB. [2021-12-18 04:16:37,647 INFO L158 Benchmark]: Witness Printer took 3.00ms. Allocated memory is still 348.1MB. Free memory is still 169.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-18 04:16:37,648 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 96.5MB. Free memory was 51.4MB in the beginning and 51.3MB in the end (delta: 38.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1047.72ms. Allocated memory was 96.5MB in the beginning and 138.4MB in the end (delta: 41.9MB). Free memory was 55.6MB in the beginning and 88.7MB in the end (delta: -33.0MB). Peak memory consumption was 46.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.09ms. Allocated memory is still 138.4MB. Free memory was 88.7MB in the beginning and 80.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.81ms. Allocated memory is still 138.4MB. Free memory was 80.3MB in the beginning and 71.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1064.11ms. Allocated memory was 138.4MB in the beginning and 207.6MB in the end (delta: 69.2MB). Free memory was 71.9MB in the beginning and 133.5MB in the end (delta: -61.7MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. * TraceAbstraction took 6962.91ms. Allocated memory was 207.6MB in the beginning and 348.1MB in the end (delta: 140.5MB). Free memory was 133.5MB in the beginning and 169.6MB in the end (delta: -36.0MB). Peak memory consumption was 105.5MB. Max. memory is 16.1GB. * Witness Printer took 3.00ms. Allocated memory is still 348.1MB. Free memory is still 169.6MB. There was no memory consumed. 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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=1] [L6161] RET, EXPR ldv_zalloc(40UL) VAL [__this_module={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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=4294887569, ldvarg4=51336, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=4294887569, tmp___1=51336] [L6167] CALL, EXPR ldv_zalloc(232UL) VAL [__this_module={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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=1] [L6167] RET, EXPR ldv_zalloc(232UL) VAL [__this_module={1383515028900253225896071:1383515028900253225896092}, 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=4294887569, ldvarg4=51336, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=4294887569, tmp___1=51336] [L6167] tmp___2 = ldv_zalloc(232UL) [L6168] ldvarg3 = (struct sk_buff *)tmp___2 VAL [__this_module={1383515028900253225896071:1383515028900253225896092}, 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=4294887569, ldvarg3={0:0}, ldvarg4=51336, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=4294887569, tmp___1=51336, tmp___2={0:0}] [L6169] CALL, EXPR ldv_zalloc(3264UL) VAL [__this_module={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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=1] [L6169] RET, EXPR ldv_zalloc(3264UL) VAL [__this_module={1383515028900253225896071:1383515028900253225896092}, 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=4294887569, ldvarg3={0:0}, ldvarg4=51336, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, tmp={0:0}, tmp___0=4294887569, tmp___1=51336, tmp___2={0:0}] [L6169] tmp___3 = ldv_zalloc(3264UL) [L6170] ldvarg5 = (struct net_device *)tmp___3 VAL [__this_module={1383515028900253225896071:1383515028900253225896092}, 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=4294887569, ldvarg3={0:0}, ldvarg4=51336, 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=4294887569, tmp___1=51336, tmp___2={0:0}, tmp___3={0:0}] [L6171] CALL, EXPR ldv_zalloc(1UL) VAL [__this_module={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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=1] [L6171] RET, EXPR ldv_zalloc(1UL) VAL [__this_module={1383515028900253225896071:1383515028900253225896092}, 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=4294887569, ldvarg3={0:0}, ldvarg4=51336, 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=4294887569, tmp___1=51336, tmp___2={0:0}, tmp___3={0:0}] [L6171] tmp___4 = ldv_zalloc(1UL) [L6172] ldvarg2 = tmp___4 VAL [__this_module={1383515028900253225896071:1383515028900253225896092}, 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=4294887569, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=51336, 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=4294887569, tmp___1=51336, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}] [L6173] CALL, EXPR ldv_zalloc(1UL) VAL [__this_module={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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=1] [L6173] RET, EXPR ldv_zalloc(1UL) VAL [__this_module={1383515028900253225896071:1383515028900253225896092}, 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=4294887569, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=51336, 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=4294887569, tmp___1=51336, 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={1383515028900253225896071:1383515028900253225896092}, 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={18:0}, set={0:0}, 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={1383515028900253225896071:1383515028900253225896092}, 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=4294887569, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=51336, 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=4294887569, tmp___1=51336, 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={1383515028900253225896071:1383515028900253225896092}, 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=4294887569, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=51336, 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=4294887569, tmp___1=51336, 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={1383515028900253225896071:1383515028900253225896092}, 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=4294887569, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=51336, 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=4294887569, tmp___1=51336, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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=1] [L6104] RET, EXPR ldv_zalloc(232UL) VAL [__this_module={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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=1] [L6106] RET, EXPR ldv_zalloc(3264UL) VAL [__this_module={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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=4294887569, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=51336, 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=4294887569, tmp___1=51336, 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={1383515028900253225896071:1383515028900253225896092}, 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=4294887569, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=51336, 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=4294887569, tmp___1=51336, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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)={23:-8}, tmp={0:0}] [L5888] tmp___0 = state(hdlc) [L5889] st = tmp___0 VAL [\old(arg)=18446744073709548352, __this_module={1383515028900253225896071:1383515028900253225896092}, 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={23:-8}, tmp={0:0}, tmp___0={23:-8}] [L5890] CALL spin_lock(& st->lock) VAL [__this_module={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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={23:-8}, tmp={0:0}, tmp___0={23:-8}] [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={1383515028900253225896071:1383515028900253225896092}, 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={23:-8}, st->last_poll=1383515028900253225896057, st->settings.timeout=19, st->up=1383515028900253225896091, st->up != 0 && (long )((st->last_poll + (unsigned long )(st->settings.timeout * 250U)) - (unsigned long )jiffies) < 0L=0, tmp={0:0}, tmp___0={23:-8}] [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={1383515028900253225896071:1383515028900253225896092}, 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={23:-8}, st->rxseq=1383515028900253225896063, tmp={0:0}, tmp___0={23:-8}] [L5897] CALL, EXPR __fswab32(st->rxseq) VAL [__this_module={1383515028900253225896071:1383515028900253225896092}, 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)=1383515028900253225896063, \result=1383515028900253225896063, __this_module={1383515028900253225896071:1383515028900253225896092}, 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=1383515028900253225896063] [L5130] RET, EXPR __arch_swab32(val) [L5130] tmp = __arch_swab32(val) [L5131] return (tmp); VAL [\old(val)=1383515028900253225896063, \result=1383515028900253225896063, __this_module={1383515028900253225896071:1383515028900253225896092}, 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=4294887551, val=1383515028900253225896063] [L5897] RET, EXPR __fswab32(st->rxseq) VAL [\old(arg)=18446744073709548352, __fswab32(st->rxseq)=1383515028900253225896063, __this_module={1383515028900253225896071:1383515028900253225896092}, 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={23:-8}, st->rxseq=1383515028900253225896063, tmp={0:0}, tmp___0={23:-8}] [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={1383515028900253225896071:1383515028900253225896092}, 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={23:-8}, st->txseq=-2, tmp={0:0}, tmp___0={23:-8}, tmp___1=4294887551] [L5899] CALL, EXPR __fswab32(st->txseq) VAL [__this_module={1383515028900253225896071:1383515028900253225896092}, 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)=-2, \result=-2, __this_module={1383515028900253225896071:1383515028900253225896092}, 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=-2] [L5130] RET, EXPR __arch_swab32(val) [L5130] tmp = __arch_swab32(val) [L5131] return (tmp); VAL [\old(val)=-2, \result=-2, __this_module={1383515028900253225896071:1383515028900253225896092}, 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=4294967294, val=-2] [L5899] RET, EXPR __fswab32(st->txseq) VAL [\old(arg)=18446744073709548352, __fswab32(st->txseq)=-2, __this_module={1383515028900253225896071:1383515028900253225896092}, 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={23:-8}, st->txseq=-2, tmp={0:0}, tmp___0={23:-8}, tmp___1=4294887551] [L5899] tmp___2 = __fswab32(st->txseq) [L5900] CALL cisco_keepalive_send(dev, 2U, tmp___2, tmp___1) VAL [\old(last_index)=0, __this_module={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, calloc(1UL, size)={-18446744073709551617:0}, 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={-18446744073709551617:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=248, tmp={-18446744073709551617:0}, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, calloc(1UL, size)={-18446744073709551617:0}, 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={-18446744073709551617:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=248, tmp={-18446744073709551617:0}, tmp___0=0] [L5530] return (p); VAL [\old(last_index)=0, \old(size)=248, \result={-18446744073709551617:0}, __this_module={1383515028900253225896071:1383515028900253225896092}, calloc(1UL, size)={-18446744073709551617:0}, 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={-18446744073709551617:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=248, tmp={-18446744073709551617:0}, tmp___0=0] [L6515] RET, EXPR ldv_zalloc(sizeof(struct sk_buff___0 )) VAL [\old(last_index)=0, __this_module={1383515028900253225896071:1383515028900253225896092}, 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 ))={-18446744073709551617:0}, 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={1383515028900253225896071:1383515028900253225896092}, 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={-18446744073709551617:0}, tmp___7={-18446744073709551617:0}] [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={1383515028900253225896071:1383515028900253225896092}, cisco_header_ops={17:0}, e={-18446744073709551617:0}, e={-18446744073709551617:0}, 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={1383515028900253225896071:1383515028900253225896092}, cisco_header_ops={17:0}, e={-18446744073709551617:0}, e={-18446744073709551617:0}, 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={1383515028900253225896071:1383515028900253225896092}, cisco_header_ops={17:0}, e={-18446744073709551617:0}, e={-18446744073709551617:0}, 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={1383515028900253225896071:1383515028900253225896092}, cisco_header_ops={17:0}, e={-18446744073709551617:0}, e={-18446744073709551617:0}, 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={-18446744073709551617:0}, __this_module={1383515028900253225896071:1383515028900253225896092}, 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={-18446744073709551617:0}, tmp___7={-18446744073709551617:0}] [L6358] RET, EXPR ldv_skb_alloc() VAL [\old(last_index)=0, \old(length)=22, __this_module={1383515028900253225896071:1383515028900253225896092}, cisco_header_ops={17:0}, jiffies=18446744073709476616, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, ldv_skb_alloc()={-18446744073709551617:0}, 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={-18446744073709551617:0}, __this_module={1383515028900253225896071:1383515028900253225896092}, 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={-18446744073709551617:0}] [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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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=1] [L6687] RET, EXPR ldv_malloc(sizeof(unsigned char)) VAL [\old(arg1)=4, \old(last_index)=0, __this_module={1383515028900253225896071:1383515028900253225896092}, arg0={-18446744073709551617:0}, arg0={-18446744073709551617:0}, 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={1383515028900253225896071:1383515028900253225896092}, cisco_header_ops={17:0}, daddr={0:0}, daddr={0:0}, data={-18446744073709551617:231}, 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={-18446744073709551617:0}, skb={-18446744073709551617:0}, type=32821] [L5686] data->control = 0U VAL [\old(last_index)=0, \old(len)=0, \old(type)=32821, __this_module={1383515028900253225896071:1383515028900253225896092}, cisco_header_ops={17:0}, daddr={0:0}, daddr={0:0}, data={-18446744073709551617:231}, 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={-18446744073709551617:0}, skb={-18446744073709551617:0}, type=32821] [L5687] CALL, EXPR __fswab16((int )type) VAL [\old(last_index)=0, \old(val)=32821, __this_module={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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)=1383515028900253225896077, __this_module={1383515028900253225896071:1383515028900253225896092}, cisco_header_ops={17:0}, daddr={0:0}, daddr={0:0}, data={-18446744073709551617:231}, 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={-18446744073709551617:0}, skb={-18446744073709551617:0}, 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={1383515028900253225896071:1383515028900253225896092}, cisco_header_ops={17:0}, daddr={0:0}, daddr={0:0}, data={-18446744073709551617:231}, 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={-18446744073709551617:0}, skb={-18446744073709551617:0}, tmp=51341, type=32821] [L5707] RET cisco_hard_header(skb, dev, 32821, (void const *)0, (void const *)0, 0U) VAL [\old(last_index)=0, \old(par1)=4294967294, \old(par2)=4294887551, \old(type)=2, __this_module={1383515028900253225896071:1383515028900253225896092}, 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=4294967294, par2=4294887551, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, skb={-18446744073709551617:0}, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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)=4294967294, \old(par2)=4294887551, \old(type)=2, __fswab32(type)=2, __this_module={1383515028900253225896071:1383515028900253225896092}, cisco_header_ops={17:0}, data={23:68}, 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=4294967294, par2=4294887551, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, skb={-18446744073709551617:0}, 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)=4294967294, \old(par2)=4294887551, \old(type)=2, __this_module={1383515028900253225896071:1383515028900253225896092}, cisco_header_ops={17:0}, data={23:68}, 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=4294967294, par2=4294887551, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, skb={-18446744073709551617:0}, tmp=2, type=2] [L5714] CALL, EXPR __fswab32(((__u32 )jiffies + 75000U) * 4U) VAL [\old(last_index)=0, __this_module={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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)=4294967294, \old(par2)=4294887551, \old(type)=2, __fswab32(((__u32 )jiffies + 75000U) * 4U)=0, __this_module={1383515028900253225896071:1383515028900253225896092}, cisco_header_ops={17:0}, data={23:68}, 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=4294967294, par2=4294887551, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, skb={-18446744073709551617:0}, 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={23:0}, __this_module={1383515028900253225896071:1383515028900253225896092}, arg0={-18446744073709551617:0}, arg0={-18446744073709551617:0}, 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={23:0}, 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={1383515028900253225896071:1383515028900253225896092}, 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={23:-8}, tmp={0:0}, tmp___0={23:-8}, tmp___1=4294887551, tmp___2=4294967294] [L5901] CALL spin_unlock(& st->lock) VAL [__this_module={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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={23:-8}, tmp={0:0}, tmp___0={23:-8}, tmp___1=4294887551, tmp___2=4294967294] [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={1383515028900253225896071:1383515028900253225896092}, 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={23:-8}, tmp={0:0}, tmp___0={23:-8}, tmp___1=4294887551, tmp___2=4294967294] [L5905] FCALL add_timer(& st->timer) VAL [\old(arg)=18446744073709548352, __this_module={1383515028900253225896071:1383515028900253225896092}, 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={23:-8}, tmp={0:0}, tmp___0={23:-8}, tmp___1=4294887551, tmp___2=4294967294] [L6115] RET (*(timer->function))(timer->data) [L6116] LDV_IN_INTERRUPT = 1 [L6117] ldv_timer_state_1 = 2 VAL [__this_module={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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=4294887569, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=51336, 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=4294887569, tmp___1=51336, 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={1383515028900253225896071:1383515028900253225896092}, 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=4294887569, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=51336, 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=4294887569, tmp___1=51336, 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={1383515028900253225896071:1383515028900253225896092}, 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=4294887569, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=51336, 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=4294887569, tmp___1=51336, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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={1383515028900253225896071:1383515028900253225896092}, 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: 6.8s, OverallIterations: 6, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3918 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3675 mSDsluCounter, 15338 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11924 mSDsCounter, 1028 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3321 IncrementalHoareTripleChecker+Invalid, 4349 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1028 mSolverCounterUnsat, 3414 mSDtfsCounter, 3321 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, 0.3s 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: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 506 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 781 NumberOfCodeBlocks, 781 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 592 ConstructedInterpolants, 0 QuantifiedInterpolants, 1341 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 [2021-12-18 04:16:37,697 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-tmp.no-commuhash-c3fed41 [2021-12-18 04:16:39,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 04:16:39,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 04:16:39,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 04:16:39,305 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 04:16:39,305 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 04:16:39,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 04:16:39,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 04:16:39,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 04:16:39,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 04:16:39,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 04:16:39,319 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 04:16:39,320 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 04:16:39,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 04:16:39,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 04:16:39,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 04:16:39,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 04:16:39,330 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 04:16:39,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 04:16:39,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 04:16:39,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 04:16:39,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 04:16:39,349 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 04:16:39,350 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 04:16:39,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 04:16:39,355 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 04:16:39,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 04:16:39,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 04:16:39,356 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 04:16:39,357 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 04:16:39,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 04:16:39,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 04:16:39,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 04:16:39,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 04:16:39,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 04:16:39,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 04:16:39,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 04:16:39,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 04:16:39,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 04:16:39,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 04:16:39,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 04:16:39,365 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-18 04:16:39,396 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 04:16:39,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 04:16:39,397 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 04:16:39,397 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 04:16:39,398 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 04:16:39,398 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 04:16:39,399 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 04:16:39,399 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 04:16:39,399 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 04:16:39,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 04:16:39,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 04:16:39,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 04:16:39,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 04:16:39,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 04:16:39,400 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-18 04:16:39,400 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-18 04:16:39,400 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-18 04:16:39,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 04:16:39,400 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 04:16:39,400 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 04:16:39,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 04:16:39,400 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 04:16:39,400 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 04:16:39,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 04:16:39,401 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 04:16:39,401 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 04:16:39,401 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 04:16:39,401 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-18 04:16:39,401 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-18 04:16:39,401 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 04:16:39,401 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 04:16:39,401 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 04:16:39,402 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 04:16:39,402 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-18 04:16:39,402 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa96c32cec5c31a75c9cdd0122db38bdeb379765e4b6aca9c91d1bb4fedaed44 [2021-12-18 04:16:39,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 04:16:39,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 04:16:39,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 04:16:39,677 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 04:16:39,679 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 04:16:39,680 INFO L432 ainManager$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 [2021-12-18 04:16:39,721 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82c62a168/10ce99a362ee4624bf11d055eb343fca/FLAG8e08e5223 [2021-12-18 04:16:40,291 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 04:16:40,292 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 [2021-12-18 04:16:40,319 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82c62a168/10ce99a362ee4624bf11d055eb343fca/FLAG8e08e5223 [2021-12-18 04:16:40,752 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82c62a168/10ce99a362ee4624bf11d055eb343fca [2021-12-18 04:16:40,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 04:16:40,755 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 04:16:40,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 04:16:40,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 04:16:40,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 04:16:40,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 04:16:40" (1/1) ... [2021-12-18 04:16:40,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4923f0c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:16:40, skipping insertion in model container [2021-12-18 04:16:40,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 04:16:40" (1/1) ... [2021-12-18 04:16:40,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 04:16:40,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 04:16:41,451 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] [2021-12-18 04:16:41,694 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 04:16:41,712 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-18 04:16:41,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 04:16:41,840 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] [2021-12-18 04:16:41,892 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 04:16:41,899 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 04:16:41,995 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] [2021-12-18 04:16:42,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 04:16:42,103 INFO L208 MainTranslator]: Completed translation [2021-12-18 04:16:42,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:16:42 WrapperNode [2021-12-18 04:16:42,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 04:16:42,105 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 04:16:42,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 04:16:42,106 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 04:16:42,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:16:42" (1/1) ... [2021-12-18 04:16:42,151 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:16:42" (1/1) ... [2021-12-18 04:16:42,231 INFO L137 Inliner]: procedures = 158, calls = 357, calls flagged for inlining = 63, calls inlined = 60, statements flattened = 1390 [2021-12-18 04:16:42,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 04:16:42,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 04:16:42,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 04:16:42,233 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 04:16:42,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:16:42" (1/1) ... [2021-12-18 04:16:42,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:16:42" (1/1) ... [2021-12-18 04:16:42,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:16:42" (1/1) ... [2021-12-18 04:16:42,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:16:42" (1/1) ... [2021-12-18 04:16:42,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:16:42" (1/1) ... [2021-12-18 04:16:42,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:16:42" (1/1) ... [2021-12-18 04:16:42,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:16:42" (1/1) ... [2021-12-18 04:16:42,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 04:16:42,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 04:16:42,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 04:16:42,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 04:16:42,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:16:42" (1/1) ... [2021-12-18 04:16:42,352 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 04:16:42,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:16:42,372 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) [2021-12-18 04:16:42,391 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 [2021-12-18 04:16:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-18 04:16:42,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-18 04:16:42,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-18 04:16:42,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-18 04:16:42,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-18 04:16:42,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 04:16:42,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-12-18 04:16:42,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 04:16:42,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 04:16:42,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 04:16:42,404 INFO L130 BoogieDeclarations]: Found specification of procedure state [2021-12-18 04:16:42,405 INFO L138 BoogieDeclarations]: Found implementation of procedure state [2021-12-18 04:16:42,405 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2021-12-18 04:16:42,405 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2021-12-18 04:16:42,405 INFO L130 BoogieDeclarations]: Found specification of procedure cisco_ioctl [2021-12-18 04:16:42,405 INFO L138 BoogieDeclarations]: Found implementation of procedure cisco_ioctl [2021-12-18 04:16:42,405 INFO L130 BoogieDeclarations]: Found specification of procedure cisco_rx [2021-12-18 04:16:42,405 INFO L138 BoogieDeclarations]: Found implementation of procedure cisco_rx [2021-12-18 04:16:42,405 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-18 04:16:42,405 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-18 04:16:42,406 INFO L130 BoogieDeclarations]: Found specification of procedure cisco_type_trans [2021-12-18 04:16:42,406 INFO L138 BoogieDeclarations]: Found implementation of procedure cisco_type_trans [2021-12-18 04:16:42,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 04:16:42,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 04:16:42,406 INFO L130 BoogieDeclarations]: Found specification of procedure netif_dormant_on [2021-12-18 04:16:42,406 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_dormant_on [2021-12-18 04:16:42,406 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-12-18 04:16:42,406 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-12-18 04:16:42,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-12-18 04:16:42,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-12-18 04:16:42,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 04:16:42,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 04:16:42,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-12-18 04:16:42,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-12-18 04:16:42,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-12-18 04:16:42,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-12-18 04:16:42,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 04:16:42,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 04:16:42,408 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 04:16:42,408 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 04:16:42,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 04:16:42,408 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 04:16:42,409 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 04:16:42,409 INFO L130 BoogieDeclarations]: Found specification of procedure cisco_hard_header [2021-12-18 04:16:42,409 INFO L138 BoogieDeclarations]: Found implementation of procedure cisco_hard_header [2021-12-18 04:16:42,409 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-18 04:16:42,409 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-18 04:16:42,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 04:16:42,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 04:16:42,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 04:16:42,410 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-12-18 04:16:42,410 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-12-18 04:16:42,411 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 04:16:42,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-12-18 04:16:42,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-12-18 04:16:42,411 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2021-12-18 04:16:42,411 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2021-12-18 04:16:42,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-12-18 04:16:42,411 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-12-18 04:16:42,412 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-12-18 04:16:42,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 04:16:42,412 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-18 04:16:42,412 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-18 04:16:42,412 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 04:16:42,412 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 04:16:42,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-18 04:16:42,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-18 04:16:42,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-12-18 04:16:42,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 04:16:42,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-18 04:16:42,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 04:16:42,413 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-18 04:16:42,414 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-18 04:16:42,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-18 04:16:42,414 INFO L130 BoogieDeclarations]: Found specification of procedure cisco_keepalive_send [2021-12-18 04:16:42,414 INFO L138 BoogieDeclarations]: Found implementation of procedure cisco_keepalive_send [2021-12-18 04:16:42,414 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-18 04:16:42,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-18 04:16:42,414 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-18 04:16:42,414 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-18 04:16:42,414 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 04:16:42,415 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 04:16:42,415 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 04:16:42,415 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 04:16:42,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-12-18 04:16:42,415 INFO L130 BoogieDeclarations]: Found specification of procedure linkwatch_fire_event [2021-12-18 04:16:42,415 INFO L138 BoogieDeclarations]: Found implementation of procedure linkwatch_fire_event [2021-12-18 04:16:42,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-18 04:16:42,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-18 04:16:42,416 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-18 04:16:42,416 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-18 04:16:42,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 04:16:42,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 04:16:42,714 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 04:16:42,716 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 04:16:42,783 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 04:16:50,138 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 04:16:50,147 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 04:16:50,150 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-18 04:16:50,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 04:16:50 BoogieIcfgContainer [2021-12-18 04:16:50,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 04:16:50,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 04:16:50,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 04:16:50,157 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 04:16:50,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 04:16:40" (1/3) ... [2021-12-18 04:16:50,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20681a68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 04:16:50, skipping insertion in model container [2021-12-18 04:16:50,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:16:42" (2/3) ... [2021-12-18 04:16:50,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20681a68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 04:16:50, skipping insertion in model container [2021-12-18 04:16:50,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 04:16:50" (3/3) ... [2021-12-18 04:16:50,160 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 [2021-12-18 04:16:50,164 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 04:16:50,165 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 04:16:50,200 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 04:16:50,204 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 [2021-12-18 04:16:50,205 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 04:16:50,221 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) [2021-12-18 04:16:50,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-18 04:16:50,226 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:16:50,227 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] [2021-12-18 04:16:50,227 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:16:50,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:16:50,231 INFO L85 PathProgramCache]: Analyzing trace with hash -796223239, now seen corresponding path program 1 times [2021-12-18 04:16:50,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 04:16:50,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [481912791] [2021-12-18 04:16:50,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:16:50,241 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 04:16:50,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 04:16:50,243 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) [2021-12-18 04:16:50,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-18 04:16:50,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:50,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 04:16:50,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:16:50,614 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-18 04:16:50,614 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:16:50,615 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 04:16:50,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [481912791] [2021-12-18 04:16:50,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [481912791] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:16:50,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:16:50,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 04:16:50,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462177691] [2021-12-18 04:16:50,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:16:50,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 04:16:50,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 04:16:50,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 04:16:50,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:16:50,660 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) [2021-12-18 04:16:50,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:16:50,817 INFO L93 Difference]: Finished difference Result 1423 states and 2029 transitions. [2021-12-18 04:16:50,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 04:16:50,820 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 [2021-12-18 04:16:50,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:16:50,833 INFO L225 Difference]: With dead ends: 1423 [2021-12-18 04:16:50,834 INFO L226 Difference]: Without dead ends: 924 [2021-12-18 04:16:50,841 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 [2021-12-18 04:16:50,843 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 [2021-12-18 04:16:50,844 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] [2021-12-18 04:16:50,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2021-12-18 04:16:50,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 924. [2021-12-18 04:16:50,923 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) [2021-12-18 04:16:50,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1284 transitions. [2021-12-18 04:16:50,928 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1284 transitions. Word has length 47 [2021-12-18 04:16:50,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:16:50,929 INFO L470 AbstractCegarLoop]: Abstraction has 924 states and 1284 transitions. [2021-12-18 04:16:50,929 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) [2021-12-18 04:16:50,929 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1284 transitions. [2021-12-18 04:16:50,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-18 04:16:50,931 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:16:50,932 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] [2021-12-18 04:16:50,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-18 04:16:51,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 04:16:51,142 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:16:51,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:16:51,142 INFO L85 PathProgramCache]: Analyzing trace with hash 566714884, now seen corresponding path program 1 times [2021-12-18 04:16:51,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 04:16:51,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [825170608] [2021-12-18 04:16:51,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:16:51,143 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 04:16:51,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 04:16:51,147 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) [2021-12-18 04:16:51,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-18 04:16:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:51,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 04:16:51,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:16:51,525 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-18 04:16:51,525 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:16:51,525 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 04:16:51,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [825170608] [2021-12-18 04:16:51,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [825170608] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:16:51,526 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:16:51,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 04:16:51,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409783583] [2021-12-18 04:16:51,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:16:51,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 04:16:51,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 04:16:51,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 04:16:51,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 04:16:51,528 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) [2021-12-18 04:16:51,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:16:51,757 INFO L93 Difference]: Finished difference Result 1833 states and 2547 transitions. [2021-12-18 04:16:51,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 04:16:51,758 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 [2021-12-18 04:16:51,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:16:51,762 INFO L225 Difference]: With dead ends: 1833 [2021-12-18 04:16:51,763 INFO L226 Difference]: Without dead ends: 923 [2021-12-18 04:16:51,765 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 [2021-12-18 04:16:51,766 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 [2021-12-18 04:16:51,766 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] [2021-12-18 04:16:51,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2021-12-18 04:16:51,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 923. [2021-12-18 04:16:51,788 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) [2021-12-18 04:16:51,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1280 transitions. [2021-12-18 04:16:51,792 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1280 transitions. Word has length 50 [2021-12-18 04:16:51,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:16:51,792 INFO L470 AbstractCegarLoop]: Abstraction has 923 states and 1280 transitions. [2021-12-18 04:16:51,793 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) [2021-12-18 04:16:51,793 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1280 transitions. [2021-12-18 04:16:51,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-18 04:16:51,796 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:16:51,796 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] [2021-12-18 04:16:51,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-18 04:16:52,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 04:16:52,007 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:16:52,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:16:52,007 INFO L85 PathProgramCache]: Analyzing trace with hash -965053755, now seen corresponding path program 1 times [2021-12-18 04:16:52,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 04:16:52,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [52315961] [2021-12-18 04:16:52,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:16:52,008 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 04:16:52,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 04:16:52,009 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) [2021-12-18 04:16:52,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-18 04:16:52,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:52,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-18 04:16:52,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:16:52,452 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-12-18 04:16:52,452 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:16:52,452 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 04:16:52,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [52315961] [2021-12-18 04:16:52,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [52315961] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:16:52,452 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:16:52,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 04:16:52,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136407020] [2021-12-18 04:16:52,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:16:52,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 04:16:52,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 04:16:52,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 04:16:52,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 04:16:52,454 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) [2021-12-18 04:16:52,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:16:52,602 INFO L93 Difference]: Finished difference Result 2738 states and 3820 transitions. [2021-12-18 04:16:52,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 04:16:52,602 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 [2021-12-18 04:16:52,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:16:52,610 INFO L225 Difference]: With dead ends: 2738 [2021-12-18 04:16:52,610 INFO L226 Difference]: Without dead ends: 1824 [2021-12-18 04:16:52,613 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 [2021-12-18 04:16:52,614 INFO L933 BasicCegarLoop]: 751 mSDtfsCounter, 627 mSDsluCounter, 2142 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 2893 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 [2021-12-18 04:16:52,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [627 Valid, 2893 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 04:16:52,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1824 states. [2021-12-18 04:16:52,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1824 to 1824. [2021-12-18 04:16:52,688 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) [2021-12-18 04:16:52,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 2541 transitions. [2021-12-18 04:16:52,694 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 2541 transitions. Word has length 71 [2021-12-18 04:16:52,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:16:52,696 INFO L470 AbstractCegarLoop]: Abstraction has 1824 states and 2541 transitions. [2021-12-18 04:16:52,696 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) [2021-12-18 04:16:52,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 2541 transitions. [2021-12-18 04:16:52,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-12-18 04:16:52,704 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:16:52,704 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] [2021-12-18 04:16:52,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-18 04:16:52,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 04:16:52,905 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:16:52,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:16:52,906 INFO L85 PathProgramCache]: Analyzing trace with hash -574025911, now seen corresponding path program 1 times [2021-12-18 04:16:52,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 04:16:52,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1013115139] [2021-12-18 04:16:52,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:16:52,907 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 04:16:52,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 04:16:52,908 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) [2021-12-18 04:16:52,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-18 04:16:53,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:53,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-18 04:16:53,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:16:53,564 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-18 04:16:53,564 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:16:53,565 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 04:16:53,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1013115139] [2021-12-18 04:16:53,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1013115139] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:16:53,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:16:53,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 04:16:53,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310835896] [2021-12-18 04:16:53,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:16:53,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 04:16:53,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 04:16:53,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 04:16:53,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 04:16:53,566 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) [2021-12-18 04:16:53,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:16:53,642 INFO L93 Difference]: Finished difference Result 3658 states and 5130 transitions. [2021-12-18 04:16:53,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 04:16:53,643 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 [2021-12-18 04:16:53,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:16:53,658 INFO L225 Difference]: With dead ends: 3658 [2021-12-18 04:16:53,658 INFO L226 Difference]: Without dead ends: 1848 [2021-12-18 04:16:53,664 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 [2021-12-18 04:16:53,665 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 [2021-12-18 04:16:53,666 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] [2021-12-18 04:16:53,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1848 states. [2021-12-18 04:16:53,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1848 to 1844. [2021-12-18 04:16:53,712 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) [2021-12-18 04:16:53,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 2570 transitions. [2021-12-18 04:16:53,720 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 2570 transitions. Word has length 141 [2021-12-18 04:16:53,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:16:53,722 INFO L470 AbstractCegarLoop]: Abstraction has 1844 states and 2570 transitions. [2021-12-18 04:16:53,722 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) [2021-12-18 04:16:53,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 2570 transitions. [2021-12-18 04:16:53,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-18 04:16:53,728 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:16:53,728 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] [2021-12-18 04:16:53,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-18 04:16:53,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 04:16:53,937 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:16:53,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:16:53,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1293113785, now seen corresponding path program 1 times [2021-12-18 04:16:53,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 04:16:53,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1681177019] [2021-12-18 04:16:53,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:16:53,939 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 04:16:53,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 04:16:53,940 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) [2021-12-18 04:16:53,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-18 04:16:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:16:54,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 22 conjunts are in the unsatisfiable core [2021-12-18 04:16:54,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:16:54,984 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-18 04:16:54,984 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:16:54,984 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 04:16:54,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1681177019] [2021-12-18 04:16:54,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1681177019] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:16:54,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:16:54,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-18 04:16:54,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131440381] [2021-12-18 04:16:54,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:16:54,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-18 04:16:54,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 04:16:54,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-18 04:16:54,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-18 04:16:54,986 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) [2021-12-18 04:16:58,793 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:16:59,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:17:02,215 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:17:04,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:17:04,394 INFO L93 Difference]: Finished difference Result 3746 states and 5240 transitions. [2021-12-18 04:17:04,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-18 04:17:04,395 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 [2021-12-18 04:17:04,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:17:04,402 INFO L225 Difference]: With dead ends: 3746 [2021-12-18 04:17:04,403 INFO L226 Difference]: Without dead ends: 1916 [2021-12-18 04:17:04,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-12-18 04:17:04,410 INFO L933 BasicCegarLoop]: 669 mSDtfsCounter, 36 mSDsluCounter, 6636 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s 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, 9.1s IncrementalHoareTripleChecker+Time [2021-12-18 04:17:04,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 7305 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2021-12-18 04:17:04,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2021-12-18 04:17:04,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1884. [2021-12-18 04:17:04,457 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) [2021-12-18 04:17:04,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1884 states to 1884 states and 2614 transitions. [2021-12-18 04:17:04,471 INFO L78 Accepts]: Start accepts. Automaton has 1884 states and 2614 transitions. Word has length 148 [2021-12-18 04:17:04,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:17:04,472 INFO L470 AbstractCegarLoop]: Abstraction has 1884 states and 2614 transitions. [2021-12-18 04:17:04,472 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) [2021-12-18 04:17:04,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1884 states and 2614 transitions. [2021-12-18 04:17:04,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-12-18 04:17:04,477 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:17:04,477 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] [2021-12-18 04:17:04,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-12-18 04:17:04,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 04:17:04,692 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:17:04,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:17:04,692 INFO L85 PathProgramCache]: Analyzing trace with hash -669328497, now seen corresponding path program 1 times [2021-12-18 04:17:04,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 04:17:04,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1964478840] [2021-12-18 04:17:04,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:17:04,693 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 04:17:04,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 04:17:04,696 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) [2021-12-18 04:17:04,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-18 04:17:10,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-18 04:17:10,667 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-18 04:17:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-18 04:17:13,334 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-12-18 04:17:13,335 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-18 04:17:13,335 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-18 04:17:13,394 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-12-18 04:17:13,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 04:17:13,558 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-12-18 04:17:13,560 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-18 04:17:13,600 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:17:13,600 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:17:13,601 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:17:13,601 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:17:13,601 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:17:13,601 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:17:13,601 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:17:13,602 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:17:13,602 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:17:13,602 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:17:13,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 04:17:13 BoogieIcfgContainer [2021-12-18 04:17:13,720 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-18 04:17:13,721 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-18 04:17:13,721 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-18 04:17:13,721 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-18 04:17:13,721 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 04:16:50" (3/4) ... [2021-12-18 04:17:13,732 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-18 04:17:13,748 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:17:13,748 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:17:13,748 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:17:13,748 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:17:13,749 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:17:13,749 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:17:13,749 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:17:13,749 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:17:13,749 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:17:13,749 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-18 04:17:13,867 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-18 04:17:13,867 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-18 04:17:13,868 INFO L158 Benchmark]: Toolchain (without parser) took 33112.87ms. Allocated memory was 69.2MB in the beginning and 180.4MB in the end (delta: 111.1MB). Free memory was 43.9MB in the beginning and 75.9MB in the end (delta: -32.0MB). Peak memory consumption was 118.4MB. Max. memory is 16.1GB. [2021-12-18 04:17:13,868 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 69.2MB. Free memory is still 51.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-18 04:17:13,868 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1347.88ms. Allocated memory was 69.2MB in the beginning and 104.9MB in the end (delta: 35.7MB). Free memory was 43.7MB in the beginning and 43.9MB in the end (delta: -249.7kB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. [2021-12-18 04:17:13,868 INFO L158 Benchmark]: Boogie Procedure Inliner took 126.18ms. Allocated memory is still 104.9MB. Free memory was 43.9MB in the beginning and 58.0MB in the end (delta: -14.1MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2021-12-18 04:17:13,869 INFO L158 Benchmark]: Boogie Preprocessor took 112.26ms. Allocated memory is still 104.9MB. Free memory was 58.0MB in the beginning and 49.1MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-18 04:17:13,869 INFO L158 Benchmark]: RCFGBuilder took 7808.16ms. Allocated memory was 104.9MB in the beginning and 148.9MB in the end (delta: 44.0MB). Free memory was 49.1MB in the beginning and 86.9MB in the end (delta: -37.8MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. [2021-12-18 04:17:13,869 INFO L158 Benchmark]: TraceAbstraction took 23565.10ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 86.1MB in the beginning and 44.8MB in the end (delta: 41.3MB). Peak memory consumption was 71.4MB. Max. memory is 16.1GB. [2021-12-18 04:17:13,869 INFO L158 Benchmark]: Witness Printer took 146.74ms. Allocated memory is still 180.4MB. Free memory was 44.8MB in the beginning and 75.9MB in the end (delta: -31.1MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2021-12-18 04:17:13,871 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 69.2MB. Free memory is still 51.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1347.88ms. Allocated memory was 69.2MB in the beginning and 104.9MB in the end (delta: 35.7MB). Free memory was 43.7MB in the beginning and 43.9MB in the end (delta: -249.7kB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 126.18ms. Allocated memory is still 104.9MB. Free memory was 43.9MB in the beginning and 58.0MB in the end (delta: -14.1MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 112.26ms. Allocated memory is still 104.9MB. Free memory was 58.0MB in the beginning and 49.1MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 7808.16ms. Allocated memory was 104.9MB in the beginning and 148.9MB in the end (delta: 44.0MB). Free memory was 49.1MB in the beginning and 86.9MB in the end (delta: -37.8MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. * TraceAbstraction took 23565.10ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 86.1MB in the beginning and 44.8MB in the end (delta: 41.3MB). Peak memory consumption was 71.4MB. Max. memory is 16.1GB. * Witness Printer took 146.74ms. Allocated memory is still 180.4MB. Free memory was 44.8MB in the beginning and 75.9MB in the end (delta: -31.1MB). Peak memory consumption was 9.8MB. 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={18:0}, set={0:0}, 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)={-9223372036854775805:0}, 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={-9223372036854775805:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=248, tmp={-9223372036854775805:0}, 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)={-9223372036854775805:0}, 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={-9223372036854775805:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=248, tmp={-9223372036854775805:0}, tmp___0=0] [L5530] return (p); VAL [\old(last_index)=0, \old(size)=248, \result={-9223372036854775805:0}, __this_module={0:0}, calloc(1UL, size)={-9223372036854775805:0}, 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={-9223372036854775805:0}, proto={16:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={18:0}, size=248, tmp={-9223372036854775805:0}, 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 ))={-9223372036854775805:0}, 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={-9223372036854775805:0}, tmp___7={-9223372036854775805:0}] [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={-9223372036854775805:0}, e={-9223372036854775805:0}, 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={-9223372036854775805:0}, e={-9223372036854775805:0}, 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={-9223372036854775805:0}, e={-9223372036854775805:0}, 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={-9223372036854775805:0}, e={-9223372036854775805:0}, 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={-9223372036854775805:0}, __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={-9223372036854775805:0}, tmp___7={-9223372036854775805:0}] [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()={-9223372036854775805:0}, 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={-9223372036854775805:0}, __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={-9223372036854775805:0}] [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={-9223372036854775805:0}, arg0={-9223372036854775805:0}, 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={0:2}, 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={-9223372036854775805:0}, skb={-9223372036854775805:0}, 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={0:2}, 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={-9223372036854775805:0}, skb={-9223372036854775805:0}, 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={0:2}, 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={-9223372036854775805:0}, skb={-9223372036854775805:0}, 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={0:2}, 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={-9223372036854775805:0}, skb={-9223372036854775805:0}, 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={-9223372036854775805:0}, 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={0:74}, 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={-9223372036854775805:0}, 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={0:74}, 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={-9223372036854775805:0}, 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={0:74}, 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={-9223372036854775805:0}, 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={0:6}, __this_module={0:0}, arg0={-9223372036854775805:0}, arg0={-9223372036854775805:0}, 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={0:6}, 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: 23.4s, OverallIterations: 6, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2090 SdHoareTripleChecker+Valid, 9.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2087 mSDsluCounter, 15706 SdHoareTripleChecker+Invalid, 9.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12079 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 237 IncrementalHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 3627 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, 0.7s 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, 6.4s SatisfiabilityAnalysisTime, 1.5s 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! [2021-12-18 04:17:13,927 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