./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.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 70890f3d08defb801ef42dfcccb814d43a0397723b39cd10a6795cae91719bfb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 11:52:52,258 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 11:52:52,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 11:52:52,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 11:52:52,307 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 11:52:52,311 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 11:52:52,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 11:52:52,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 11:52:52,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 11:52:52,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 11:52:52,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 11:52:52,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 11:52:52,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 11:52:52,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 11:52:52,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 11:52:52,338 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 11:52:52,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 11:52:52,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 11:52:52,347 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 11:52:52,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 11:52:52,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 11:52:52,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 11:52:52,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 11:52:52,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 11:52:52,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 11:52:52,363 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 11:52:52,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 11:52:52,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 11:52:52,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 11:52:52,366 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 11:52:52,367 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 11:52:52,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 11:52:52,369 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 11:52:52,370 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 11:52:52,371 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 11:52:52,372 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 11:52:52,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 11:52:52,373 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 11:52:52,373 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 11:52:52,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 11:52:52,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 11:52:52,375 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 11:52:52,412 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 11:52:52,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 11:52:52,413 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 11:52:52,413 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 11:52:52,415 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 11:52:52,415 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 11:52:52,415 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 11:52:52,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 11:52:52,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 11:52:52,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 11:52:52,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 11:52:52,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 11:52:52,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 11:52:52,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 11:52:52,417 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 11:52:52,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 11:52:52,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 11:52:52,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 11:52:52,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 11:52:52,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 11:52:52,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 11:52:52,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 11:52:52,419 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 11:52:52,419 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 11:52:52,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 11:52:52,419 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 11:52:52,420 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 11:52:52,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 11:52:52,420 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 11:52:52,420 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70890f3d08defb801ef42dfcccb814d43a0397723b39cd10a6795cae91719bfb [2021-11-06 11:52:52,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 11:52:52,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 11:52:52,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 11:52:52,685 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 11:52:52,687 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 11:52:52,688 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2021-11-06 11:52:52,763 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dd709c8b/24a66d20e9ce437ea529f777556eb434/FLAG204ca63a2 [2021-11-06 11:52:53,547 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 11:52:53,548 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2021-11-06 11:52:53,604 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dd709c8b/24a66d20e9ce437ea529f777556eb434/FLAG204ca63a2 [2021-11-06 11:52:53,734 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dd709c8b/24a66d20e9ce437ea529f777556eb434 [2021-11-06 11:52:53,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 11:52:53,740 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 11:52:53,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 11:52:53,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 11:52:53,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 11:52:53,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:52:53" (1/1) ... [2021-11-06 11:52:53,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@188bf33a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:52:53, skipping insertion in model container [2021-11-06 11:52:53,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:52:53" (1/1) ... [2021-11-06 11:52:53,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 11:52:53,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 11:52:56,040 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2021-11-06 11:52:56,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 11:52:56,145 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 11:52:56,495 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2021-11-06 11:52:56,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 11:52:56,733 INFO L208 MainTranslator]: Completed translation [2021-11-06 11:52:56,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:52:56 WrapperNode [2021-11-06 11:52:56,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 11:52:56,737 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 11:52:56,737 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 11:52:56,738 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 11:52:56,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:52:56" (1/1) ... [2021-11-06 11:52:56,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:52:56" (1/1) ... [2021-11-06 11:52:57,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 11:52:57,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 11:52:57,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 11:52:57,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 11:52:57,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:52:56" (1/1) ... [2021-11-06 11:52:57,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:52:56" (1/1) ... [2021-11-06 11:52:57,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:52:56" (1/1) ... [2021-11-06 11:52:57,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:52:56" (1/1) ... [2021-11-06 11:52:58,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:52:56" (1/1) ... [2021-11-06 11:52:58,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:52:56" (1/1) ... [2021-11-06 11:52:58,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:52:56" (1/1) ... [2021-11-06 11:52:58,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 11:52:58,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 11:52:58,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 11:52:58,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 11:52:58,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:52:56" (1/1) ... [2021-11-06 11:52:58,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 11:52:58,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:52:58,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 11:52:58,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-06 11:52:58,840 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-06 11:52:58,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-06 11:52:58,841 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-06 11:52:58,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 11:52:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 11:52:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 11:52:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 11:52:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 11:52:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 11:52:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 11:52:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 11:52:58,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 11:52:58,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 11:52:58,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 11:52:58,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 11:52:58,843 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 11:52:58,843 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2021-11-06 11:52:58,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2021-11-06 11:52:58,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 11:52:58,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 11:52:58,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 11:52:59,697 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-06 11:52:59,725 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-06 11:52:59,759 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-06 11:53:02,207 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##667: assume !false; [2021-11-06 11:53:02,207 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##666: assume false; [2021-11-06 11:53:02,207 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##672: assume false; [2021-11-06 11:53:02,207 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##673: assume !false; [2021-11-06 11:53:02,207 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##679: assume !false; [2021-11-06 11:53:02,208 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##678: assume false; [2021-11-06 11:53:02,208 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##687: assume !false; [2021-11-06 11:53:02,208 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##686: assume false; [2021-11-06 11:53:02,208 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##290: assume !false; [2021-11-06 11:53:02,208 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##294: assume !false; [2021-11-06 11:53:02,208 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##293: assume false; [2021-11-06 11:53:02,208 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##289: assume false; [2021-11-06 11:53:02,208 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##789: assume false; [2021-11-06 11:53:02,209 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##790: assume !false; [2021-11-06 11:53:02,209 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##436: assume !false; [2021-11-06 11:53:02,209 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##435: assume false; [2021-11-06 11:53:02,209 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##439: assume false; [2021-11-06 11:53:02,209 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##440: assume !false; [2021-11-06 11:53:02,209 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##445: assume false; [2021-11-06 11:53:02,209 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##446: assume !false; [2021-11-06 11:53:02,209 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##508: assume false; [2021-11-06 11:53:02,210 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##509: assume !false; [2021-11-06 11:53:02,210 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##83: assume !false; [2021-11-06 11:53:02,210 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##82: assume false; [2021-11-06 11:53:02,210 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##89: assume !false; [2021-11-06 11:53:02,210 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume false; [2021-11-06 11:53:02,210 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2021-11-06 11:53:02,210 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2021-11-06 11:53:02,211 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2021-11-06 11:53:02,211 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2021-11-06 11:53:02,211 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2021-11-06 11:53:02,211 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2021-11-06 11:53:02,211 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##119: assume !false; [2021-11-06 11:53:02,211 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##118: assume false; [2021-11-06 11:53:02,217 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-06 11:53:02,375 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-06 11:53:16,389 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3743: assume !false; [2021-11-06 11:53:16,389 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3742: assume false; [2021-11-06 11:53:16,389 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##99: assume false; [2021-11-06 11:53:16,390 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##71: assume !false; [2021-11-06 11:53:16,390 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##70: assume false; [2021-11-06 11:53:16,390 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##76: assume !false; [2021-11-06 11:53:16,390 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume false; [2021-11-06 11:53:16,390 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume !false; [2021-11-06 11:53:16,390 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##60: assume false; [2021-11-06 11:53:16,390 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##65: assume false; [2021-11-06 11:53:16,390 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##64: assume !true; [2021-11-06 11:53:16,390 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##69: assume !true; [2021-11-06 11:53:16,390 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##66: assume !false; [2021-11-06 11:53:16,390 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##50: assume !false; [2021-11-06 11:53:16,390 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##57: assume !false; [2021-11-06 11:53:16,390 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume false;havoc get_current_#res.base, get_current_#res.offset;havoc get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset;havoc get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2021-11-06 11:53:16,391 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##49: assume false; [2021-11-06 11:53:16,391 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##34: assume !false; [2021-11-06 11:53:16,391 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##33: assume false; [2021-11-06 11:53:16,391 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##100: assume !false; [2021-11-06 11:53:16,392 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##107: assume !false; [2021-11-06 11:53:16,392 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##106: assume false;havoc get_current_#res.base, get_current_#res.offset;havoc get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset;havoc get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2021-11-06 11:53:16,392 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##111: assume !false; [2021-11-06 11:53:16,392 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##110: assume false; [2021-11-06 11:53:16,392 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##115: assume false; [2021-11-06 11:53:16,392 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##114: assume !true; [2021-11-06 11:53:16,392 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##119: assume !true; [2021-11-06 11:53:16,393 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##116: assume !false; [2021-11-06 11:53:16,393 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##121: assume !false; [2021-11-06 11:53:16,393 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##120: assume false; [2021-11-06 11:53:16,393 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##126: assume !false; [2021-11-06 11:53:16,393 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##125: assume false; [2021-11-06 11:53:16,394 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-1: assume !true; [2021-11-06 11:53:16,394 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-1: goto; [2021-11-06 11:53:16,394 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-4: assume !true; [2021-11-06 11:53:16,395 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-4: goto; [2021-11-06 11:53:16,395 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-1: call __bad_percpu_size(); [2021-11-06 11:53:16,395 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-2: call __bad_percpu_size(); [2021-11-06 11:53:16,395 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-6: call __bad_percpu_size(); [2021-11-06 11:53:16,395 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-3: call __bad_percpu_size(); [2021-11-06 11:53:16,395 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-7: call __bad_percpu_size(); [2021-11-06 11:53:16,395 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-8: call __bad_percpu_size(); [2021-11-06 11:53:16,396 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-3: get_current_#res.base, get_current_#res.offset := get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2021-11-06 11:53:16,396 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-7: get_current_#res.base, get_current_#res.offset := get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2021-11-06 11:53:16,396 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-5: get_current_#res.base, get_current_#res.offset := get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2021-11-06 11:53:16,396 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-15: get_current_#res.base, get_current_#res.offset := get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2021-11-06 11:53:16,396 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-13: get_current_#res.base, get_current_#res.offset := get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2021-11-06 11:53:16,396 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-17: get_current_#res.base, get_current_#res.offset := get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2021-11-06 11:53:16,397 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-1: ppp_read_#t~ret304.base, ppp_read_#t~ret304.offset := get_current_#res.base, get_current_#res.offset;ppp_read_~tmp___0~15.base, ppp_read_~tmp___0~15.offset := ppp_read_#t~ret304.base, ppp_read_#t~ret304.offset;havoc ppp_read_#t~ret304.base, ppp_read_#t~ret304.offset;ppp_read_~__ptr~0.base, ppp_read_~__ptr~0.offset := ppp_read_~tmp___0~15.base, ppp_read_~tmp___0~15.offset; [2021-11-06 11:53:16,397 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-2: ppp_read_#t~ret305.base, ppp_read_#t~ret305.offset := get_current_#res.base, get_current_#res.offset;ppp_read_~tmp___1~6.base, ppp_read_~tmp___1~6.offset := ppp_read_#t~ret305.base, ppp_read_#t~ret305.offset;havoc ppp_read_#t~ret305.base, ppp_read_#t~ret305.offset;ppp_read_~__ptr___0~0.base, ppp_read_~__ptr___0~0.offset := ppp_read_~tmp___1~6.base, ppp_read_~tmp___1~6.offset; [2021-11-06 11:53:16,397 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-3: ppp_read_#t~ret306.base, ppp_read_#t~ret306.offset := get_current_#res.base, get_current_#res.offset;ppp_read_~tmp___2~5.base, ppp_read_~tmp___2~5.offset := ppp_read_#t~ret306.base, ppp_read_#t~ret306.offset;havoc ppp_read_#t~ret306.base, ppp_read_#t~ret306.offset;ppp_read_~__ptr___1~0.base, ppp_read_~__ptr___1~0.offset := ppp_read_~tmp___2~5.base, ppp_read_~tmp___2~5.offset; [2021-11-06 11:53:16,397 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-8: ppp_read_#t~ret318.base, ppp_read_#t~ret318.offset := get_current_#res.base, get_current_#res.offset;ppp_read_~tmp___8~0.base, ppp_read_~tmp___8~0.offset := ppp_read_#t~ret318.base, ppp_read_#t~ret318.offset;havoc ppp_read_#t~ret318.base, ppp_read_#t~ret318.offset;ppp_read_~__ptr___5~0.base, ppp_read_~__ptr___5~0.offset := ppp_read_~tmp___8~0.base, ppp_read_~tmp___8~0.offset; [2021-11-06 11:53:16,397 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-6: ppp_read_#t~ret316.base, ppp_read_#t~ret316.offset := get_current_#res.base, get_current_#res.offset;ppp_read_~tmp___6~0.base, ppp_read_~tmp___6~0.offset := ppp_read_#t~ret316.base, ppp_read_#t~ret316.offset;havoc ppp_read_#t~ret316.base, ppp_read_#t~ret316.offset;ppp_read_~__ptr___3~0.base, ppp_read_~__ptr___3~0.offset := ppp_read_~tmp___6~0.base, ppp_read_~tmp___6~0.offset; [2021-11-06 11:53:16,398 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-7: ppp_read_#t~ret317.base, ppp_read_#t~ret317.offset := get_current_#res.base, get_current_#res.offset;ppp_read_~tmp___7~0.base, ppp_read_~tmp___7~0.offset := ppp_read_#t~ret317.base, ppp_read_#t~ret317.offset;havoc ppp_read_#t~ret317.base, ppp_read_#t~ret317.offset;ppp_read_~__ptr___4~0.base, ppp_read_~__ptr___4~0.offset := ppp_read_~tmp___7~0.base, ppp_read_~tmp___7~0.offset; [2021-11-06 11:53:16,431 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 11:53:16,431 INFO L299 CfgBuilder]: Removed 5584 assume(true) statements. [2021-11-06 11:53:16,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:53:16 BoogieIcfgContainer [2021-11-06 11:53:16,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 11:53:16,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 11:53:16,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 11:53:16,446 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 11:53:16,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:52:53" (1/3) ... [2021-11-06 11:53:16,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a4ad279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:53:16, skipping insertion in model container [2021-11-06 11:53:16,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:52:56" (2/3) ... [2021-11-06 11:53:16,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a4ad279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:53:16, skipping insertion in model container [2021-11-06 11:53:16,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:53:16" (3/3) ... [2021-11-06 11:53:16,453 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2021-11-06 11:53:16,460 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 11:53:16,460 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 39 error locations. [2021-11-06 11:53:16,536 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 11:53:16,545 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-06 11:53:16,552 INFO L340 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2021-11-06 11:53:16,652 INFO L276 IsEmpty]: Start isEmpty. Operand has 4363 states, 4318 states have (on average 1.4187123668364985) internal successors, (6126), 4357 states have internal predecessors, (6126), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-06 11:53:16,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-06 11:53:16,656 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:53:16,657 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:53:16,658 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ppp_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-11-06 11:53:16,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:53:16,663 INFO L85 PathProgramCache]: Analyzing trace with hash 611387097, now seen corresponding path program 1 times [2021-11-06 11:53:16,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:53:16,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783089500] [2021-11-06 11:53:16,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:53:16,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:53:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:53:17,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:53:17,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:53:17,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783089500] [2021-11-06 11:53:17,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783089500] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:53:17,181 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:53:17,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 11:53:17,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614928420] [2021-11-06 11:53:17,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 11:53:17,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:53:17,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 11:53:17,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 11:53:17,215 INFO L87 Difference]: Start difference. First operand has 4363 states, 4318 states have (on average 1.4187123668364985) internal successors, (6126), 4357 states have internal predecessors, (6126), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:53:17,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:53:17,874 INFO L93 Difference]: Finished difference Result 12998 states and 18305 transitions. [2021-11-06 11:53:17,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 11:53:17,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-06 11:53:17,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:53:17,944 INFO L225 Difference]: With dead ends: 12998 [2021-11-06 11:53:17,945 INFO L226 Difference]: Without dead ends: 8464 [2021-11-06 11:53:17,972 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 11:53:18,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8464 states. [2021-11-06 11:53:18,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8464 to 8388. [2021-11-06 11:53:18,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8388 states, 8339 states have (on average 1.3585561817963785) internal successors, (11329), 8377 states have internal predecessors, (11329), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2021-11-06 11:53:18,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8388 states to 8388 states and 11344 transitions. [2021-11-06 11:53:18,351 INFO L78 Accepts]: Start accepts. Automaton has 8388 states and 11344 transitions. Word has length 10 [2021-11-06 11:53:18,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:53:18,352 INFO L470 AbstractCegarLoop]: Abstraction has 8388 states and 11344 transitions. [2021-11-06 11:53:18,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:53:18,353 INFO L276 IsEmpty]: Start isEmpty. Operand 8388 states and 11344 transitions. [2021-11-06 11:53:18,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-06 11:53:18,362 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:53:18,362 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:53:18,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 11:53:18,363 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ppp_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-11-06 11:53:18,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:53:18,366 INFO L85 PathProgramCache]: Analyzing trace with hash -213849618, now seen corresponding path program 1 times [2021-11-06 11:53:18,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:53:18,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029619723] [2021-11-06 11:53:18,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:53:18,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:53:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:53:18,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:53:18,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:53:18,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029619723] [2021-11-06 11:53:18,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029619723] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:53:18,561 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:53:18,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 11:53:18,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119741428] [2021-11-06 11:53:18,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 11:53:18,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:53:18,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 11:53:18,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 11:53:18,564 INFO L87 Difference]: Start difference. First operand 8388 states and 11344 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:53:18,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:53:18,841 INFO L93 Difference]: Finished difference Result 19006 states and 25759 transitions. [2021-11-06 11:53:18,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 11:53:18,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-06 11:53:18,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:53:18,892 INFO L225 Difference]: With dead ends: 19006 [2021-11-06 11:53:18,893 INFO L226 Difference]: Without dead ends: 10639 [2021-11-06 11:53:18,919 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 11:53:18,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10639 states. [2021-11-06 11:53:19,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10639 to 10603. [2021-11-06 11:53:19,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10603 states, 10552 states have (on average 1.3628695981804397) internal successors, (14381), 10590 states have internal predecessors, (14381), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2021-11-06 11:53:19,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10603 states to 10603 states and 14401 transitions. [2021-11-06 11:53:19,381 INFO L78 Accepts]: Start accepts. Automaton has 10603 states and 14401 transitions. Word has length 35 [2021-11-06 11:53:19,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:53:19,381 INFO L470 AbstractCegarLoop]: Abstraction has 10603 states and 14401 transitions. [2021-11-06 11:53:19,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:53:19,382 INFO L276 IsEmpty]: Start isEmpty. Operand 10603 states and 14401 transitions. [2021-11-06 11:53:19,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-06 11:53:19,385 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:53:19,385 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:53:19,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 11:53:19,386 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ppp_ioctlErr4ASSERT_VIOLATIONERROR_FUNCTION === [ppp_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-11-06 11:53:19,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:53:19,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1656598579, now seen corresponding path program 1 times [2021-11-06 11:53:19,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:53:19,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121223127] [2021-11-06 11:53:19,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:53:19,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:53:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:53:19,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:53:19,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:53:19,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121223127] [2021-11-06 11:53:19,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121223127] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:53:19,908 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:53:19,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 11:53:19,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807278076] [2021-11-06 11:53:19,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 11:53:19,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:53:19,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 11:53:19,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 11:53:19,911 INFO L87 Difference]: Start difference. First operand 10603 states and 14401 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:53:20,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:53:20,279 INFO L93 Difference]: Finished difference Result 21188 states and 28780 transitions. [2021-11-06 11:53:20,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 11:53:20,280 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-06 11:53:20,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:53:20,333 INFO L225 Difference]: With dead ends: 21188 [2021-11-06 11:53:20,334 INFO L226 Difference]: Without dead ends: 10603 [2021-11-06 11:53:20,364 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-06 11:53:20,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10603 states. [2021-11-06 11:53:20,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10603 to 10603. [2021-11-06 11:53:20,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10603 states, 10552 states have (on average 1.362680060652009) internal successors, (14379), 10590 states have internal predecessors, (14379), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2021-11-06 11:53:20,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10603 states to 10603 states and 14399 transitions. [2021-11-06 11:53:20,654 INFO L78 Accepts]: Start accepts. Automaton has 10603 states and 14399 transitions. Word has length 42 [2021-11-06 11:53:20,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:53:20,654 INFO L470 AbstractCegarLoop]: Abstraction has 10603 states and 14399 transitions. [2021-11-06 11:53:20,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:53:20,655 INFO L276 IsEmpty]: Start isEmpty. Operand 10603 states and 14399 transitions. [2021-11-06 11:53:20,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-06 11:53:20,658 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:53:20,659 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:53:20,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 11:53:20,659 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ppp_ioctlErr4ASSERT_VIOLATIONERROR_FUNCTION === [ppp_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-11-06 11:53:20,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:53:20,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1930573677, now seen corresponding path program 1 times [2021-11-06 11:53:20,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:53:20,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449319184] [2021-11-06 11:53:20,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:53:20,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:53:21,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-06 11:53:21,045 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-06 11:53:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-06 11:53:21,664 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-06 11:53:21,665 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-06 11:53:21,666 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ppp_ioctlErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,668 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ppp_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,671 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ppp_ioctlErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,671 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ppp_ioctlErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,672 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ppp_ioctlErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,672 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ppp_ioctlErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,672 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ppp_ioctlErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,672 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ppp_ioctlErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,672 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ppp_ioctlErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,673 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ppp_ioctlErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,673 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,673 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,674 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,674 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,674 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,674 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,675 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,675 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,675 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,675 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,675 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,676 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,676 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,676 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,676 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,676 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,677 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,677 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,677 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,677 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,677 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,678 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,678 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,678 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,678 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,679 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,679 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,679 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,679 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:53:21,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 11:53:21,684 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-06 11:53:21,687 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-06 11:53:21,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:53:21 BoogieIcfgContainer [2021-11-06 11:53:21,882 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-06 11:53:21,883 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-06 11:53:21,883 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-06 11:53:21,883 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-06 11:53:21,884 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:53:16" (3/4) ... [2021-11-06 11:53:21,887 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-06 11:53:21,887 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-06 11:53:21,888 INFO L168 Benchmark]: Toolchain (without parser) took 28147.76 ms. Allocated memory was 96.5 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 51.7 MB in the beginning and 824.5 MB in the end (delta: -772.8 MB). Peak memory consumption was 316.3 MB. Max. memory is 16.1 GB. [2021-11-06 11:53:21,889 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 96.5 MB. Free memory was 53.8 MB in the beginning and 53.7 MB in the end (delta: 43.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-06 11:53:21,889 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2991.85 ms. Allocated memory was 96.5 MB in the beginning and 159.4 MB in the end (delta: 62.9 MB). Free memory was 51.5 MB in the beginning and 83.6 MB in the end (delta: -32.1 MB). Peak memory consumption was 63.4 MB. Max. memory is 16.1 GB. [2021-11-06 11:53:21,890 INFO L168 Benchmark]: Boogie Procedure Inliner took 746.01 ms. Allocated memory was 159.4 MB in the beginning and 260.0 MB in the end (delta: 100.7 MB). Free memory was 83.6 MB in the beginning and 132.4 MB in the end (delta: -48.9 MB). Peak memory consumption was 70.5 MB. Max. memory is 16.1 GB. [2021-11-06 11:53:21,890 INFO L168 Benchmark]: Boogie Preprocessor took 1257.71 ms. Allocated memory is still 260.0 MB. Free memory was 132.4 MB in the beginning and 95.6 MB in the end (delta: 36.8 MB). Peak memory consumption was 64.2 MB. Max. memory is 16.1 GB. [2021-11-06 11:53:21,891 INFO L168 Benchmark]: RCFGBuilder took 17697.91 ms. Allocated memory was 260.0 MB in the beginning and 1.2 GB in the end (delta: 924.8 MB). Free memory was 95.6 MB in the beginning and 755.3 MB in the end (delta: -659.7 MB). Peak memory consumption was 619.4 MB. Max. memory is 16.1 GB. [2021-11-06 11:53:21,891 INFO L168 Benchmark]: TraceAbstraction took 5440.24 ms. Allocated memory is still 1.2 GB. Free memory was 755.3 MB in the beginning and 824.5 MB in the end (delta: -69.2 MB). Peak memory consumption was 500.2 MB. Max. memory is 16.1 GB. [2021-11-06 11:53:21,891 INFO L168 Benchmark]: Witness Printer took 4.13 ms. Allocated memory is still 1.2 GB. Free memory is still 824.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-06 11:53:21,893 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 96.5 MB. Free memory was 53.8 MB in the beginning and 53.7 MB in the end (delta: 43.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2991.85 ms. Allocated memory was 96.5 MB in the beginning and 159.4 MB in the end (delta: 62.9 MB). Free memory was 51.5 MB in the beginning and 83.6 MB in the end (delta: -32.1 MB). Peak memory consumption was 63.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 746.01 ms. Allocated memory was 159.4 MB in the beginning and 260.0 MB in the end (delta: 100.7 MB). Free memory was 83.6 MB in the beginning and 132.4 MB in the end (delta: -48.9 MB). Peak memory consumption was 70.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 1257.71 ms. Allocated memory is still 260.0 MB. Free memory was 132.4 MB in the beginning and 95.6 MB in the end (delta: 36.8 MB). Peak memory consumption was 64.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 17697.91 ms. Allocated memory was 260.0 MB in the beginning and 1.2 GB in the end (delta: 924.8 MB). Free memory was 95.6 MB in the beginning and 755.3 MB in the end (delta: -659.7 MB). Peak memory consumption was 619.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5440.24 ms. Allocated memory is still 1.2 GB. Free memory was 755.3 MB in the beginning and 824.5 MB in the end (delta: -69.2 MB). Peak memory consumption was 500.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.13 ms. Allocated memory is still 1.2 GB. Free memory is still 824.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * 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: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 6167, overapproximation of bitwiseOr at line 7938, overapproximation of bitwiseAnd at line 7939. Possible FailurePath: [L6164-L6171] static struct mutex ppp_mutex = {{1}, {{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "ppp_mutex.wait_lock", 0, 0UL}}}}, {& ppp_mutex.wait_list, & ppp_mutex.wait_list}, (struct task_struct *)0, (char const *)0, (void *)(& ppp_mutex), {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "ppp_mutex", 0, 0UL}}; [L6172] static atomic_t ppp_unit_count = {0}; [L6173] static atomic_t channel_count = {0}; [L6174] static int ppp_net_id ; [L6207] static struct class *ppp_class ; [L6268-L6269] static int const npindex_to_proto[6U] = { (int const )33, (int const )87, (int const )43, (int const )41, (int const )641, (int const )643}; [L6313-L6314] static int const npindex_to_ethertype[6U] = { (int const )2048, (int const )34525, (int const )33079, (int const )16, (int const )34887, (int const )34888}; [L7621-L7646] static struct file_operations const ppp_device_fops = {& __this_module, & noop_llseek, & ppp_read, & ppp_write, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (int (*)(struct file * , void * , int (*)(void * , char const * , int , loff_t , u64 , unsigned int ) ))0, & ppp_poll, & ppp_ioctl, (long (*)(struct file * , unsigned int , unsigned long ))0, (int (*)(struct file * , struct vm_area_struct * ))0, & ppp_open, (int (*)(struct file * , fl_owner_t ))0, & ppp_release, (int (*)(struct file * , int ))0, (int (*)(struct kiocb * , int ))0, (int (*)(int , struct file * , int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct file * , struct page * , int , size_t , loff_t * , int ))0, (unsigned long (*)(struct file * , unsigned long , unsigned long , unsigned long , unsigned long ))0, (int (*)(int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct pipe_inode_info * , struct file * , loff_t * , size_t , unsigned int ))0, (ssize_t (*)(struct file * , loff_t * , struct pipe_inode_info * , size_t , unsigned int ))0, (int (*)(struct file * , long , struct file_lock ** ))0, (long (*)(struct file * , int , loff_t , loff_t ))0}; [L7679-L7680] static struct pernet_operations ppp_net_ops = {{(struct list_head *)0, (struct list_head *)0}, & ppp_init_net, & ppp_exit_net, (void (*)(struct list_head * ))0, & ppp_net_id, 376UL}; [L7891-L7927] static struct net_device_ops const ppp_netdev_ops = {(int (*)(struct net_device * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * ))0, & ppp_start_xmit, (u16 (*)(struct net_device * , struct sk_buff * ))0, (void (*)(struct net_device * , int ))0, (void (*)(struct net_device * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , void * ))0, (int (*)(struct net_device * ))0, & ppp_net_ioctl, (int (*)(struct net_device * , struct ifmap * ))0, (int (*)(struct net_device * , int ))0, (int (*)(struct net_device * , struct neigh_parms * ))0, (void (*)(struct net_device * ))0, (struct rtnl_link_stats64 *(*)(struct net_device * , struct rtnl_link_stats64 * ))0, (struct net_device_stats *(*)(struct net_device * ))0, (void (*)(struct net_device * , struct vlan_group * ))0, (void (*)(struct net_device * , unsigned short ))0, (void (*)(struct net_device * , unsigned short ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , struct netpoll_info * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , int , u8 * ))0, (int (*)(struct net_device * , int , u16 , u8 ))0, (int (*)(struct net_device * , int , int ))0, (int (*)(struct net_device * , int , struct ifla_vf_info * ))0, (int (*)(struct net_device * , int , struct nlattr ** ))0, (int (*)(struct net_device * , int , struct sk_buff * ))0, (int (*)(struct net_device * , u8 ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * , u16 , struct scatterlist * , unsigned int ))0, (int (*)(struct net_device * , u16 ))0, (int (*)(struct net_device * , u16 , struct scatterlist * , unsigned int ))0, (int (*)(struct net_device * , u64 * , int ))0, (int (*)(struct net_device * , struct sk_buff const * , u16 , u32 ))0, (int (*)(struct net_device * , struct net_device * ))0, (int (*)(struct net_device * , struct net_device * ))0, (u32 (*)(struct net_device * , u32 ))0, (int (*)(struct net_device * , u32 ))0}; [L8312] static bool mp_protocol_compress = (bool )1; [L9989] static struct list_head compressor_list = {& compressor_list, & compressor_list}; [L9990-L9994] static spinlock_t compressor_list_lock = {{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "compressor_list_lock", 0, 0UL}}}}; [L10620] int LDV_IN_INTERRUPT ; [L10813] int ldv_module_refcounter = 1; VAL [__this_module={18446744073709551626:18446744073709551650}, channel_count={84:0}, compressor_list={79:0}, compressor_list_lock={103:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={61:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={115:0}, ppp_mutex={117:0}, ppp_net_id={89:0}, ppp_net_ops={113:0}, ppp_netdev_ops={94:0}, ppp_unit_count={98:0}] [L10622] struct file *var_group1 ; [L10623] char *var_ppp_read_5_p1 ; [L10624] size_t var_ppp_read_5_p2 ; [L10625] loff_t *var_ppp_read_5_p3 ; [L10626] ssize_t res_ppp_read_5 ; [L10627] char const *var_ppp_write_6_p1 ; [L10628] size_t var_ppp_write_6_p2 ; [L10629] loff_t *var_ppp_write_6_p3 ; [L10630] ssize_t res_ppp_write_6 ; [L10631] poll_table *var_ppp_poll_7_p1 ; [L10632] unsigned int var_ppp_ioctl_9_p1 ; [L10633] unsigned long var_ppp_ioctl_9_p2 ; [L10634] struct inode *var_group2 ; [L10635] int res_ppp_open_3 ; [L10636] struct net *var_group3 ; [L10637] struct sk_buff *var_group4 ; [L10638] struct net_device *var_group5 ; [L10639] struct ifreq *var_group6 ; [L10640] int var_ppp_net_ioctl_15_p2 ; [L10641] int ldv_s_ppp_device_fops_file_operations ; [L10642] int tmp ; [L10643] int tmp___0 ; [L10644] int tmp___1 ; [L10647] ldv_s_ppp_device_fops_file_operations = 0 [L10648] LDV_IN_INTERRUPT = 1 VAL [__this_module={18446744073709551626:18446744073709551650}, channel_count={84:0}, compressor_list={79:0}, compressor_list_lock={103:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={61:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={115:0}, ppp_mutex={117:0}, ppp_net_id={89:0}, ppp_net_ops={113:0}, ppp_netdev_ops={94:0}, ppp_unit_count={98:0}] [L7682] int err ; [L7683] struct lock_class_key __key ; [L7684] struct class *tmp ; [L7685] long tmp___0 ; [L7686] long tmp___1 ; [L11180] return __VERIFIER_nondet_int(); [L7690] err = register_pernet_device(& ppp_net_ops) [L7692] COND FALSE !(err != 0) [L5879] int tmp ; [L11003] return __VERIFIER_nondet_int(); [L5882] tmp = __register_chrdev(major, 0U, 256U, name, fops) [L5884] return (tmp); VAL [__this_module={18446744073709551626:18446744073709551650}, channel_count={84:0}, compressor_list={79:0}, compressor_list_lock={103:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={61:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={115:0}, ppp_mutex={117:0}, ppp_net_id={89:0}, ppp_net_ops={113:0}, ppp_netdev_ops={94:0}, ppp_unit_count={98:0}] [L7700] err = register_chrdev(108U, "ppp", & ppp_device_fops) [L7702] COND FALSE !(err != 0) [L10957] COND TRUE __VERIFIER_nondet_bool() [L10957] return 0; VAL [__this_module={18446744073709551626:18446744073709551650}, channel_count={84:0}, compressor_list={79:0}, compressor_list_lock={103:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={61:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={115:0}, ppp_mutex={117:0}, ppp_net_id={89:0}, ppp_net_ops={113:0}, ppp_netdev_ops={94:0}, ppp_unit_count={98:0}] [L10972] return ldv_malloc(sizeof(struct class)); [L7710] tmp = __class_create(& __this_module, "ppp", & __key) [L7711] ppp_class = tmp [L5217] long tmp ; [L5220] tmp = __builtin_expect((long )((unsigned long )ptr > 0x0ffffffffffff000UL), 0L) [L5222] return (tmp); VAL [__this_module={18446744073709551626:18446744073709551650}, channel_count={84:0}, compressor_list={79:0}, compressor_list_lock={103:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={61:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={115:0}, ppp_mutex={117:0}, ppp_net_id={89:0}, ppp_net_ops={113:0}, ppp_netdev_ops={94:0}, ppp_unit_count={98:0}] [L7712] tmp___1 = IS_ERR((void const *)ppp_class) [L7714] COND FALSE !(tmp___1 != 0L) [L7725] return (0); [L7725] return (0); VAL [__this_module={18446744073709551626:18446744073709551650}, channel_count={84:0}, compressor_list={79:0}, compressor_list_lock={103:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={61:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={115:0}, ppp_mutex={117:0}, ppp_net_id={89:0}, ppp_net_ops={113:0}, ppp_netdev_ops={94:0}, ppp_unit_count={98:0}] [L10650] tmp = ppp_init() [L10652] COND FALSE !(tmp != 0) VAL [__this_module={18446744073709551626:18446744073709551650}, channel_count={84:0}, compressor_list={79:0}, compressor_list_lock={103:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={61:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={115:0}, ppp_mutex={117:0}, ppp_net_id={89:0}, ppp_net_ops={113:0}, ppp_netdev_ops={94:0}, ppp_unit_count={98:0}] [L10784] tmp___1 = __VERIFIER_nondet_int() [L10786] COND TRUE tmp___1 != 0 VAL [__this_module={18446744073709551626:18446744073709551650}, channel_count={84:0}, compressor_list={79:0}, compressor_list_lock={103:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={61:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={115:0}, ppp_mutex={117:0}, ppp_net_id={89:0}, ppp_net_ops={113:0}, ppp_netdev_ops={94:0}, ppp_unit_count={98:0}] [L10659] tmp___0 = __VERIFIER_nondet_int() [L10661] COND FALSE !(tmp___0 == 0) VAL [__this_module={18446744073709551626:18446744073709551650}, channel_count={84:0}, compressor_list={79:0}, compressor_list_lock={103:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={61:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={115:0}, ppp_mutex={117:0}, ppp_net_id={89:0}, ppp_net_ops={113:0}, ppp_netdev_ops={94:0}, ppp_unit_count={98:0}] [L10664] COND FALSE !(tmp___0 == 1) VAL [__this_module={18446744073709551626:18446744073709551650}, channel_count={84:0}, compressor_list={79:0}, compressor_list_lock={103:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={61:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={115:0}, ppp_mutex={117:0}, ppp_net_id={89:0}, ppp_net_ops={113:0}, ppp_netdev_ops={94:0}, ppp_unit_count={98:0}] [L10667] COND FALSE !(tmp___0 == 2) VAL [__this_module={18446744073709551626:18446744073709551650}, channel_count={84:0}, compressor_list={79:0}, compressor_list_lock={103:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={61:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={115:0}, ppp_mutex={117:0}, ppp_net_id={89:0}, ppp_net_ops={113:0}, ppp_netdev_ops={94:0}, ppp_unit_count={98:0}] [L10670] COND FALSE !(tmp___0 == 3) VAL [__this_module={18446744073709551626:18446744073709551650}, channel_count={84:0}, compressor_list={79:0}, compressor_list_lock={103:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={61:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={115:0}, ppp_mutex={117:0}, ppp_net_id={89:0}, ppp_net_ops={113:0}, ppp_netdev_ops={94:0}, ppp_unit_count={98:0}] [L10673] COND FALSE !(tmp___0 == 4) VAL [__this_module={18446744073709551626:18446744073709551650}, channel_count={84:0}, compressor_list={79:0}, compressor_list_lock={103:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={61:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={115:0}, ppp_mutex={117:0}, ppp_net_id={89:0}, ppp_net_ops={113:0}, ppp_netdev_ops={94:0}, ppp_unit_count={98:0}] [L10676] COND TRUE tmp___0 == 5 VAL [__this_module={18446744073709551626:18446744073709551650}, channel_count={84:0}, compressor_list={79:0}, compressor_list_lock={103:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={61:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={115:0}, ppp_mutex={117:0}, ppp_net_id={89:0}, ppp_net_ops={113:0}, ppp_netdev_ops={94:0}, ppp_unit_count={98:0}] [L10753] CALL ppp_ioctl(var_group1, var_ppp_ioctl_9_p1, var_ppp_ioctl_9_p2) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551626:18446744073709551650}, channel_count={84:0}, compressor_list={79:0}, compressor_list_lock={103:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={61:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={115:0}, ppp_mutex={117:0}, ppp_net_id={89:0}, ppp_net_ops={113:0}, ppp_netdev_ops={94:0}, ppp_unit_count={98:0}] [L6746] struct ppp_file *pf ; [L6747] struct ppp *ppp ; [L6748] int err ; [L6749] int val ; [L6750] int val2 ; [L6751] int i ; [L6752] struct ppp_idle idle ; [L6753] struct npioctl npi ; [L6754] int unit ; [L6755] int cflags ; [L6756] struct slcompress *vj ; [L6757] void *argp ; [L6758] int *p ; [L6759] struct task_struct *tmp ; [L6760] int tmp___0 ; [L6761] struct ppp_file const *__mptr ; [L6762] long tmp___1 ; [L6763] long tmp___2 ; [L6764] struct channel *pch ; [L6765] struct ppp_channel *chan ; [L6766] struct ppp_file const *__mptr___0 ; [L6767] int __ret_gu ; [L6768] unsigned long __val_gu ; [L6769] struct ppp_file const *__mptr___1 ; [L6770] int __ret_gu___0 ; [L6771] unsigned long __val_gu___0 ; [L6772] int __ret_gu___1 ; [L6773] unsigned long __val_gu___1 ; [L6774] int __ret_pu ; [L6775] int __pu_val ; [L6776] int __ret_pu___0 ; [L6777] int __pu_val___0 ; [L6778] int __ret_gu___2 ; [L6779] unsigned long __val_gu___2 ; [L6780] int __ret_pu___1 ; [L6781] int __pu_val___1 ; [L6782] int tmp___3 ; [L6783] int __ret_gu___3 ; [L6784] unsigned long __val_gu___3 ; [L6785] unsigned long tmp___4 ; [L6786] int tmp___5 ; [L6787] struct sock_filter *code ; [L6788] struct sock_filter *code___0 ; [L6789] int __ret_gu___4 ; [L6790] unsigned long __val_gu___4 ; [L6792] EXPR file->private_data [L6792] pf = (struct ppp_file *)file->private_data [L6793] err = -14 [L6794] argp = (void *)arg [L6795] p = (int *)argp VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551626:18446744073709551650}, channel_count={84:0}, compressor_list={79:0}, compressor_list_lock={103:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={61:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={115:0}, ppp_mutex={117:0}, ppp_net_id={89:0}, ppp_net_ops={113:0}, ppp_netdev_ops={94:0}, ppp_unit_count={98:0}] [L6796] COND FALSE !((unsigned long )pf == (unsigned long )((struct ppp_file *)0)) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551626:18446744073709551650}, channel_count={84:0}, compressor_list={79:0}, compressor_list_lock={103:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={61:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={115:0}, ppp_mutex={117:0}, ppp_net_id={89:0}, ppp_net_ops={113:0}, ppp_netdev_ops={94:0}, ppp_unit_count={98:0}] [L6804] COND FALSE !(cmd == 1074033724U) [L6840] EXPR pf->kind VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551626:18446744073709551650}, channel_count={84:0}, compressor_list={79:0}, compressor_list_lock={103:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={61:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={115:0}, ppp_mutex={117:0}, ppp_net_id={89:0}, ppp_net_ops={113:0}, ppp_netdev_ops={94:0}, ppp_unit_count={98:0}] [L6840] COND FALSE !((unsigned int )pf->kind == 2U) [L6923] EXPR pf->kind VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551626:18446744073709551650}, channel_count={84:0}, compressor_list={79:0}, compressor_list_lock={103:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={61:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={115:0}, ppp_mutex={117:0}, ppp_net_id={89:0}, ppp_net_ops={113:0}, ppp_netdev_ops={94:0}, ppp_unit_count={98:0}] [L6923] COND FALSE !((unsigned int )pf->kind != 1U) [L6932] __mptr___1 = (struct ppp_file const *)pf [L6933] ppp = (struct ppp *)__mptr___1 VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551626:18446744073709551650}, channel_count={84:0}, compressor_list={79:0}, compressor_list_lock={103:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={61:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={115:0}, ppp_mutex={117:0}, ppp_net_id={89:0}, ppp_net_ops={113:0}, ppp_netdev_ops={94:0}, ppp_unit_count={98:0}] [L6935] COND FALSE !((int )cmd == 1074033746) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551626:18446744073709551650}, channel_count={84:0}, compressor_list={79:0}, compressor_list_lock={103:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={61:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={115:0}, ppp_mutex={117:0}, ppp_net_id={89:0}, ppp_net_ops={113:0}, ppp_netdev_ops={94:0}, ppp_unit_count={98:0}] [L6938] COND TRUE (int )cmd == 1074033753 VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551626:18446744073709551650}, channel_count={84:0}, compressor_list={79:0}, compressor_list_lock={103:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={61:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={115:0}, ppp_mutex={117:0}, ppp_net_id={89:0}, ppp_net_ops={113:0}, ppp_netdev_ops={94:0}, ppp_unit_count={98:0}] [L7037] val = (int )__val_gu___1 VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551626:18446744073709551650}, channel_count={84:0}, compressor_list={79:0}, compressor_list_lock={103:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={61:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={115:0}, ppp_mutex={117:0}, ppp_net_id={89:0}, ppp_net_ops={113:0}, ppp_netdev_ops={94:0}, ppp_unit_count={98:0}] [L7038] COND FALSE !(__ret_gu___1 != 0) [L7045] EXPR ppp->flags [L7045] cflags = (int )(ppp->flags & (unsigned int )(~ val)) [L7046] ppp->flags = (unsigned int )val & 4214508U [L7050] COND TRUE (cflags & 64) != 0 [L9952] void *xstate ; [L9953] void *rstate ; [L9954] struct compressor *xcomp ; [L9955] struct compressor *rcomp ; [L9960] EXPR ppp->flags [L9960] ppp->flags = ppp->flags & 4294967103U [L9961] ppp->xstate = 0U [L9962] EXPR ppp->xcomp [L9962] xcomp = ppp->xcomp [L9963] EXPR ppp->xc_state [L9963] xstate = ppp->xc_state [L9964] ppp->xc_state = (void *)0 [L9965] ppp->rstate = 0U [L9966] EXPR ppp->rcomp [L9966] rcomp = ppp->rcomp [L9967] EXPR ppp->rc_state [L9967] rstate = ppp->rc_state [L9968] ppp->rc_state = (void *)0 [L9972] COND TRUE (unsigned long )xstate != (unsigned long )((void *)0) [L9974] xcomp->comp_free [L7931] dev->netdev_ops = & ppp_netdev_ops [L7932] dev->hard_header_len = (unsigned short)4 [L7933] dev->mtu = 1500U [L7934] dev->addr_len = (unsigned char)0 [L7935] dev->tx_queue_len = 3UL [L7936] dev->type = (unsigned short)512 [L7937] dev->flags = 4240U [L7938] EXPR dev->features [L7938] dev->features = dev->features | 8192U [L7939] EXPR dev->priv_flags [L7939] dev->priv_flags = dev->priv_flags & 4294966271U [L9975] xcomp->owner [L10845] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551626:18446744073709551650}, channel_count={84:0}, compressor_list={79:0}, compressor_list_lock={103:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={61:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={115:0}, ppp_mutex={117:0}, ppp_net_id={89:0}, ppp_net_ops={113:0}, ppp_netdev_ops={94:0}, ppp_unit_count={98:0}] [L10846] COND TRUE ldv_module_refcounter <= 1 VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551626:18446744073709551650}, channel_count={84:0}, compressor_list={79:0}, compressor_list_lock={103:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={61:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={115:0}, ppp_mutex={117:0}, ppp_net_id={89:0}, ppp_net_ops={113:0}, ppp_netdev_ops={94:0}, ppp_unit_count={98:0}] [L10809] reach_error() VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551626:18446744073709551650}, channel_count={84:0}, compressor_list={79:0}, compressor_list_lock={103:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={61:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={115:0}, ppp_mutex={117:0}, ppp_net_id={89:0}, ppp_net_ops={113:0}, ppp_netdev_ops={94:0}, ppp_unit_count={98:0}] - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 4363 locations, 39 error locations. Started 1 CEGAR loops. OverallTime: 5.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 17438 SDtfs, 7479 SDslu, 28773 SDs, 0 SdLazy, 194 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10603occurred in iteration=2, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 112 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 152 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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 [2021-11-06 11:53:21,980 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-3.0/module_get_put-drivers-net-ppp_generic.ko.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 70890f3d08defb801ef42dfcccb814d43a0397723b39cd10a6795cae91719bfb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 11:53:23,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 11:53:23,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 11:53:24,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 11:53:24,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 11:53:24,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 11:53:24,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 11:53:24,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 11:53:24,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 11:53:24,029 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 11:53:24,030 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 11:53:24,032 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 11:53:24,032 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 11:53:24,034 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 11:53:24,036 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 11:53:24,041 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 11:53:24,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 11:53:24,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 11:53:24,045 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 11:53:24,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 11:53:24,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 11:53:24,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 11:53:24,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 11:53:24,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 11:53:24,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 11:53:24,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 11:53:24,063 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 11:53:24,064 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 11:53:24,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 11:53:24,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 11:53:24,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 11:53:24,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 11:53:24,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 11:53:24,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 11:53:24,069 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 11:53:24,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 11:53:24,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 11:53:24,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 11:53:24,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 11:53:24,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 11:53:24,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 11:53:24,077 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-06 11:53:24,112 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 11:53:24,113 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 11:53:24,114 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 11:53:24,114 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 11:53:24,116 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 11:53:24,116 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 11:53:24,117 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 11:53:24,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 11:53:24,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 11:53:24,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 11:53:24,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 11:53:24,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 11:53:24,119 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-06 11:53:24,119 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-06 11:53:24,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 11:53:24,119 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 11:53:24,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 11:53:24,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 11:53:24,120 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 11:53:24,120 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 11:53:24,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 11:53:24,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 11:53:24,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 11:53:24,121 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 11:53:24,121 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-06 11:53:24,131 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-06 11:53:24,131 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 11:53:24,132 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 11:53:24,132 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 11:53:24,132 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 11:53:24,132 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-06 11:53:24,133 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70890f3d08defb801ef42dfcccb814d43a0397723b39cd10a6795cae91719bfb [2021-11-06 11:53:24,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 11:53:24,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 11:53:24,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 11:53:24,494 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 11:53:24,494 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 11:53:24,495 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2021-11-06 11:53:24,560 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f6dd3ba2/f6629c17cc4549b0a21ccdf7ff5edf44/FLAGf7bc0a78d [2021-11-06 11:53:25,339 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 11:53:25,340 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2021-11-06 11:53:25,391 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f6dd3ba2/f6629c17cc4549b0a21ccdf7ff5edf44/FLAGf7bc0a78d [2021-11-06 11:53:25,908 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f6dd3ba2/f6629c17cc4549b0a21ccdf7ff5edf44 [2021-11-06 11:53:25,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 11:53:25,912 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 11:53:25,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 11:53:25,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 11:53:25,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 11:53:25,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:53:25" (1/1) ... [2021-11-06 11:53:25,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@229a4188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:25, skipping insertion in model container [2021-11-06 11:53:25,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:53:25" (1/1) ... [2021-11-06 11:53:25,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 11:53:26,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 11:53:28,575 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2021-11-06 11:53:28,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 11:53:28,706 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 11:53:29,166 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2021-11-06 11:53:29,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 11:53:29,511 INFO L208 MainTranslator]: Completed translation [2021-11-06 11:53:29,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:29 WrapperNode [2021-11-06 11:53:29,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 11:53:29,515 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 11:53:29,515 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 11:53:29,515 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 11:53:29,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:29" (1/1) ... [2021-11-06 11:53:29,621 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:29" (1/1) ... [2021-11-06 11:53:30,378 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 11:53:30,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 11:53:30,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 11:53:30,379 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 11:53:30,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:29" (1/1) ... [2021-11-06 11:53:30,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:29" (1/1) ... [2021-11-06 11:53:30,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:29" (1/1) ... [2021-11-06 11:53:30,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:29" (1/1) ... [2021-11-06 11:53:30,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:29" (1/1) ... [2021-11-06 11:53:31,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:29" (1/1) ... [2021-11-06 11:53:31,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:29" (1/1) ... [2021-11-06 11:53:31,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 11:53:31,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 11:53:31,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 11:53:31,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 11:53:31,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:29" (1/1) ... [2021-11-06 11:53:31,199 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 11:53:31,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:53:31,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 11:53:31,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-06 11:53:31,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-06 11:53:31,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-06 11:53:31,267 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-06 11:53:31,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-06 11:53:31,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 11:53:31,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-06 11:53:31,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 11:53:31,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 11:53:31,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 11:53:31,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-06 11:53:31,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-06 11:53:31,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-06 11:53:31,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 11:53:31,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-06 11:53:31,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 11:53:31,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-06 11:53:31,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-06 11:53:31,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-06 11:53:31,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-06 11:53:31,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-06 11:53:31,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-06 11:53:31,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-06 11:53:31,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 11:53:31,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 11:53:31,270 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 11:53:31,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-06 11:53:31,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-06 11:53:31,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-06 11:53:31,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-06 11:53:31,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 11:53:31,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 11:53:31,933 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-06 11:53:32,114 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-06 11:53:32,126 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-06 11:53:32,132 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-06 11:53:32,185 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-06 11:55:42,721 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2438: assume false; [2021-11-06 11:55:42,721 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2439: assume !false; [2021-11-06 11:55:42,721 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2403: assume !false; [2021-11-06 11:55:42,722 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2402: assume false; [2021-11-06 11:55:42,722 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2409: assume !false; [2021-11-06 11:55:42,722 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2408: assume false; [2021-11-06 11:55:42,722 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2335: assume !false; [2021-11-06 11:55:42,722 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2334: assume false; [2021-11-06 11:55:42,722 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2339: assume !false; [2021-11-06 11:55:42,722 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2338: assume false; [2021-11-06 11:55:42,722 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2326: assume !false; [2021-11-06 11:55:42,722 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2325: assume false; [2021-11-06 11:55:42,722 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##99: assume false; [2021-11-06 11:55:42,723 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##71: assume !false; [2021-11-06 11:55:42,723 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##70: assume false; [2021-11-06 11:55:42,723 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##76: assume !false; [2021-11-06 11:55:42,723 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume false; [2021-11-06 11:55:42,723 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume !false; [2021-11-06 11:55:42,723 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##60: assume false; [2021-11-06 11:55:42,723 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##65: assume false; [2021-11-06 11:55:42,723 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##64: assume !true; [2021-11-06 11:55:42,723 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##69: assume !true; [2021-11-06 11:55:42,723 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##66: assume !false; [2021-11-06 11:55:42,723 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##50: assume !false; [2021-11-06 11:55:42,724 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##57: assume !false; [2021-11-06 11:55:42,724 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume false;havoc get_current_#res.base, get_current_#res.offset;havoc get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset;havoc get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2021-11-06 11:55:42,724 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##49: assume false; [2021-11-06 11:55:42,724 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##34: assume !false; [2021-11-06 11:55:42,724 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##33: assume false; [2021-11-06 11:55:42,724 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2993: assume !false; [2021-11-06 11:55:42,725 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2992: assume false; [2021-11-06 11:55:42,725 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2999: assume !false; [2021-11-06 11:55:42,725 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2998: assume false; [2021-11-06 11:55:42,725 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2986: assume false; [2021-11-06 11:55:42,725 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2987: assume !false; [2021-11-06 11:55:42,725 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2829: assume !false; [2021-11-06 11:55:42,725 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2828: assume false; [2021-11-06 11:55:42,725 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2755: assume false; [2021-11-06 11:55:42,725 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2756: assume !false; [2021-11-06 11:55:42,726 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2759: assume false; [2021-11-06 11:55:42,726 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2760: assume !false; [2021-11-06 11:55:42,726 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2766: assume !false; [2021-11-06 11:55:42,726 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2765: assume false; [2021-11-06 11:55:42,726 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2609: assume false; [2021-11-06 11:55:42,726 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2610: assume !false; [2021-11-06 11:55:42,726 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2614: assume !false; [2021-11-06 11:55:42,727 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2613: assume false; [2021-11-06 11:55:42,727 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##100: assume !false; [2021-11-06 11:55:42,727 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##107: assume !false; [2021-11-06 11:55:42,727 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##106: assume false;havoc get_current_#res.base, get_current_#res.offset;havoc get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset;havoc get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2021-11-06 11:55:42,727 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##111: assume !false; [2021-11-06 11:55:42,727 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##110: assume false; [2021-11-06 11:55:42,727 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##115: assume false; [2021-11-06 11:55:42,728 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##114: assume !true; [2021-11-06 11:55:42,728 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##119: assume !true; [2021-11-06 11:55:42,728 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##116: assume !false; [2021-11-06 11:55:42,728 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##121: assume !false; [2021-11-06 11:55:42,728 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##120: assume false; [2021-11-06 11:55:42,728 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##126: assume !false; [2021-11-06 11:55:42,729 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##125: assume false; [2021-11-06 11:55:42,729 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3006: assume false; [2021-11-06 11:55:42,729 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3007: assume !false; [2021-11-06 11:55:42,729 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4158: assume false; [2021-11-06 11:55:42,729 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4159: assume !false; [2021-11-06 11:55:42,730 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3110: assume !false; [2021-11-06 11:55:42,730 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3109: assume false; [2021-11-06 11:55:42,731 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-1: assume !true; [2021-11-06 11:55:42,731 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-1: goto; [2021-11-06 11:55:42,731 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-4: assume !true; [2021-11-06 11:55:42,731 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-4: goto; [2021-11-06 11:55:42,731 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-1: call __bad_percpu_size(); [2021-11-06 11:55:42,731 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-2: call __bad_percpu_size(); [2021-11-06 11:55:42,732 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-6: call __bad_percpu_size(); [2021-11-06 11:55:42,732 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-3: call __bad_percpu_size(); [2021-11-06 11:55:42,732 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-7: call __bad_percpu_size(); [2021-11-06 11:55:42,732 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-8: call __bad_percpu_size(); [2021-11-06 11:55:42,732 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-3: get_current_#res.base, get_current_#res.offset := get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2021-11-06 11:55:42,732 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-7: get_current_#res.base, get_current_#res.offset := get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2021-11-06 11:55:42,732 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-5: get_current_#res.base, get_current_#res.offset := get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2021-11-06 11:55:42,733 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-15: get_current_#res.base, get_current_#res.offset := get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2021-11-06 11:55:42,733 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-13: get_current_#res.base, get_current_#res.offset := get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2021-11-06 11:55:42,733 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-17: get_current_#res.base, get_current_#res.offset := get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2021-11-06 11:55:42,733 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-1: ppp_read_#t~ret304.base, ppp_read_#t~ret304.offset := get_current_#res.base, get_current_#res.offset;ppp_read_~tmp___0~15.base, ppp_read_~tmp___0~15.offset := ppp_read_#t~ret304.base, ppp_read_#t~ret304.offset;havoc ppp_read_#t~ret304.base, ppp_read_#t~ret304.offset;ppp_read_~__ptr~0.base, ppp_read_~__ptr~0.offset := ppp_read_~tmp___0~15.base, ppp_read_~tmp___0~15.offset; [2021-11-06 11:55:42,733 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-2: ppp_read_#t~ret305.base, ppp_read_#t~ret305.offset := get_current_#res.base, get_current_#res.offset;ppp_read_~tmp___1~6.base, ppp_read_~tmp___1~6.offset := ppp_read_#t~ret305.base, ppp_read_#t~ret305.offset;havoc ppp_read_#t~ret305.base, ppp_read_#t~ret305.offset;ppp_read_~__ptr___0~0.base, ppp_read_~__ptr___0~0.offset := ppp_read_~tmp___1~6.base, ppp_read_~tmp___1~6.offset; [2021-11-06 11:55:42,733 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-3: ppp_read_#t~ret306.base, ppp_read_#t~ret306.offset := get_current_#res.base, get_current_#res.offset;ppp_read_~tmp___2~5.base, ppp_read_~tmp___2~5.offset := ppp_read_#t~ret306.base, ppp_read_#t~ret306.offset;havoc ppp_read_#t~ret306.base, ppp_read_#t~ret306.offset;ppp_read_~__ptr___1~0.base, ppp_read_~__ptr___1~0.offset := ppp_read_~tmp___2~5.base, ppp_read_~tmp___2~5.offset; [2021-11-06 11:55:42,734 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-8: ppp_read_#t~ret318.base, ppp_read_#t~ret318.offset := get_current_#res.base, get_current_#res.offset;ppp_read_~tmp___8~0.base, ppp_read_~tmp___8~0.offset := ppp_read_#t~ret318.base, ppp_read_#t~ret318.offset;havoc ppp_read_#t~ret318.base, ppp_read_#t~ret318.offset;ppp_read_~__ptr___5~0.base, ppp_read_~__ptr___5~0.offset := ppp_read_~tmp___8~0.base, ppp_read_~tmp___8~0.offset; [2021-11-06 11:55:42,734 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-6: ppp_read_#t~ret316.base, ppp_read_#t~ret316.offset := get_current_#res.base, get_current_#res.offset;ppp_read_~tmp___6~0.base, ppp_read_~tmp___6~0.offset := ppp_read_#t~ret316.base, ppp_read_#t~ret316.offset;havoc ppp_read_#t~ret316.base, ppp_read_#t~ret316.offset;ppp_read_~__ptr___3~0.base, ppp_read_~__ptr___3~0.offset := ppp_read_~tmp___6~0.base, ppp_read_~tmp___6~0.offset; [2021-11-06 11:55:42,734 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-7: ppp_read_#t~ret317.base, ppp_read_#t~ret317.offset := get_current_#res.base, get_current_#res.offset;ppp_read_~tmp___7~0.base, ppp_read_~tmp___7~0.offset := ppp_read_#t~ret317.base, ppp_read_#t~ret317.offset;havoc ppp_read_#t~ret317.base, ppp_read_#t~ret317.offset;ppp_read_~__ptr___4~0.base, ppp_read_~__ptr___4~0.offset := ppp_read_~tmp___7~0.base, ppp_read_~tmp___7~0.offset; [2021-11-06 11:55:42,775 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 11:55:42,775 INFO L299 CfgBuilder]: Removed 5484 assume(true) statements. [2021-11-06 11:55:42,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:55:42 BoogieIcfgContainer [2021-11-06 11:55:42,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 11:55:42,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 11:55:42,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 11:55:42,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 11:55:42,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:53:25" (1/3) ... [2021-11-06 11:55:42,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a4f9935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:55:42, skipping insertion in model container [2021-11-06 11:55:42,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:29" (2/3) ... [2021-11-06 11:55:42,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a4f9935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:55:42, skipping insertion in model container [2021-11-06 11:55:42,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:55:42" (3/3) ... [2021-11-06 11:55:42,792 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2021-11-06 11:55:42,797 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 11:55:42,797 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 39 error locations. [2021-11-06 11:55:42,870 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 11:55:42,876 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-06 11:55:42,877 INFO L340 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2021-11-06 11:55:42,941 INFO L276 IsEmpty]: Start isEmpty. Operand has 4133 states, 4093 states have (on average 1.4099682384559002) internal successors, (5771), 4132 states have internal predecessors, (5771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:55:42,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-06 11:55:42,946 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:55:42,947 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:55:42,948 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-11-06 11:55:42,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:55:42,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1393895239, now seen corresponding path program 1 times [2021-11-06 11:55:42,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 11:55:42,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [177685103] [2021-11-06 11:55:42,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:55:42,967 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 11:55:42,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 11:55:42,971 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) [2021-11-06 11:55:42,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-06 11:55:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:55:44,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 11:55:44,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:55:44,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:55:44,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 11:55:44,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:55:44,255 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 11:55:44,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [177685103] [2021-11-06 11:55:44,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [177685103] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 11:55:44,256 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:55:44,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-06 11:55:44,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377365683] [2021-11-06 11:55:44,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 11:55:44,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 11:55:44,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 11:55:44,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 11:55:44,285 INFO L87 Difference]: Start difference. First operand has 4133 states, 4093 states have (on average 1.4099682384559002) internal successors, (5771), 4132 states have internal predecessors, (5771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:55:45,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:55:45,348 INFO L93 Difference]: Finished difference Result 12308 states and 17213 transitions. [2021-11-06 11:55:45,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 11:55:45,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-06 11:55:45,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:55:45,414 INFO L225 Difference]: With dead ends: 12308 [2021-11-06 11:55:45,414 INFO L226 Difference]: Without dead ends: 8004 [2021-11-06 11:55:45,435 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 11:55:45,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8004 states. [2021-11-06 11:55:45,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8004 to 7928. [2021-11-06 11:55:45,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7928 states, 7889 states have (on average 1.3460514640638863) internal successors, (10619), 7927 states have internal predecessors, (10619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:55:45,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7928 states to 7928 states and 10619 transitions. [2021-11-06 11:55:45,751 INFO L78 Accepts]: Start accepts. Automaton has 7928 states and 10619 transitions. Word has length 10 [2021-11-06 11:55:45,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:55:45,752 INFO L470 AbstractCegarLoop]: Abstraction has 7928 states and 10619 transitions. [2021-11-06 11:55:45,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:55:45,752 INFO L276 IsEmpty]: Start isEmpty. Operand 7928 states and 10619 transitions. [2021-11-06 11:55:45,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-06 11:55:45,761 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:55:45,761 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:55:45,785 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-06 11:55:45,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 11:55:45,983 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-11-06 11:55:45,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:55:45,984 INFO L85 PathProgramCache]: Analyzing trace with hash -473324972, now seen corresponding path program 1 times [2021-11-06 11:55:45,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 11:55:45,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [483440944] [2021-11-06 11:55:45,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:55:45,986 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 11:55:45,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 11:55:45,988 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) [2021-11-06 11:55:45,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-06 11:55:47,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:55:47,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-06 11:55:47,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:55:47,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:55:47,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 11:55:47,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:55:47,518 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 11:55:47,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [483440944] [2021-11-06 11:55:47,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [483440944] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 11:55:47,518 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:55:47,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-06 11:55:47,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285773716] [2021-11-06 11:55:47,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 11:55:47,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 11:55:47,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 11:55:47,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 11:55:47,521 INFO L87 Difference]: Start difference. First operand 7928 states and 10619 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:55:48,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:55:48,010 INFO L93 Difference]: Finished difference Result 15838 states and 21216 transitions. [2021-11-06 11:55:48,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 11:55:48,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-06 11:55:48,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:55:48,045 INFO L225 Difference]: With dead ends: 15838 [2021-11-06 11:55:48,045 INFO L226 Difference]: Without dead ends: 7928 [2021-11-06 11:55:48,061 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-06 11:55:48,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7928 states. [2021-11-06 11:55:48,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7928 to 7928. [2021-11-06 11:55:48,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7928 states, 7889 states have (on average 1.3457979465077956) internal successors, (10617), 7927 states have internal predecessors, (10617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:55:48,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7928 states to 7928 states and 10617 transitions. [2021-11-06 11:55:48,302 INFO L78 Accepts]: Start accepts. Automaton has 7928 states and 10617 transitions. Word has length 35 [2021-11-06 11:55:48,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:55:48,302 INFO L470 AbstractCegarLoop]: Abstraction has 7928 states and 10617 transitions. [2021-11-06 11:55:48,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:55:48,303 INFO L276 IsEmpty]: Start isEmpty. Operand 7928 states and 10617 transitions. [2021-11-06 11:55:48,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-06 11:55:48,305 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:55:48,305 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:55:48,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-06 11:55:48,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 11:55:48,520 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-11-06 11:55:48,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:55:48,520 INFO L85 PathProgramCache]: Analyzing trace with hash -839366508, now seen corresponding path program 1 times [2021-11-06 11:55:48,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 11:55:48,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [751545255] [2021-11-06 11:55:48,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:55:48,523 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 11:55:48,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 11:55:48,526 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) [2021-11-06 11:55:48,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-06 11:55:49,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:55:49,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 11:55:49,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:55:49,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:55:49,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 11:55:50,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:55:50,212 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 11:55:50,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [751545255] [2021-11-06 11:55:50,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [751545255] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 11:55:50,212 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:55:50,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-06 11:55:50,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890088609] [2021-11-06 11:55:50,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 11:55:50,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 11:55:50,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 11:55:50,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-06 11:55:50,215 INFO L87 Difference]: Start difference. First operand 7928 states and 10617 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:55:50,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:55:50,769 INFO L93 Difference]: Finished difference Result 23322 states and 31201 transitions. [2021-11-06 11:55:50,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 11:55:50,770 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-06 11:55:50,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:55:50,853 INFO L225 Difference]: With dead ends: 23322 [2021-11-06 11:55:50,853 INFO L226 Difference]: Without dead ends: 15415 [2021-11-06 11:55:50,878 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-06 11:55:50,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15415 states. [2021-11-06 11:55:51,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15415 to 15295. [2021-11-06 11:55:51,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15295 states, 15256 states have (on average 1.3443890928159412) internal successors, (20510), 15294 states have internal predecessors, (20510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:55:51,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15295 states to 15295 states and 20510 transitions. [2021-11-06 11:55:51,533 INFO L78 Accepts]: Start accepts. Automaton has 15295 states and 20510 transitions. Word has length 42 [2021-11-06 11:55:51,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:55:51,533 INFO L470 AbstractCegarLoop]: Abstraction has 15295 states and 20510 transitions. [2021-11-06 11:55:51,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:55:51,534 INFO L276 IsEmpty]: Start isEmpty. Operand 15295 states and 20510 transitions. [2021-11-06 11:55:51,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-06 11:55:51,539 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:55:51,540 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:55:51,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-06 11:55:51,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 11:55:51,756 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-11-06 11:55:51,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:55:51,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1381473804, now seen corresponding path program 1 times [2021-11-06 11:55:51,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 11:55:51,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1302032073] [2021-11-06 11:55:51,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:55:51,759 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 11:55:51,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 11:55:51,760 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) [2021-11-06 11:55:51,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-06 11:57:08,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-06 11:57:08,151 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-06 11:58:38,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-06 11:58:39,078 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-06 11:58:39,079 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-06 11:58:39,079 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,089 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,089 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,089 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,089 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,093 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,093 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,094 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:58:39,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-06 11:58:39,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 11:58:39,312 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-06 11:58:39,314 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-06 11:58:39,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:58:39 BoogieIcfgContainer [2021-11-06 11:58:39,539 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-06 11:58:39,540 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-06 11:58:39,540 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-06 11:58:39,540 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-06 11:58:39,541 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:55:42" (3/4) ... [2021-11-06 11:58:39,545 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-06 11:58:39,545 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-06 11:58:39,550 INFO L168 Benchmark]: Toolchain (without parser) took 313633.08 ms. Allocated memory was 54.5 MB in the beginning and 891.3 MB in the end (delta: 836.8 MB). Free memory was 29.4 MB in the beginning and 283.4 MB in the end (delta: -253.9 MB). Peak memory consumption was 581.8 MB. Max. memory is 16.1 GB. [2021-11-06 11:58:39,550 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 54.5 MB. Free memory was 36.5 MB in the beginning and 36.4 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-06 11:58:39,551 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3598.10 ms. Allocated memory was 54.5 MB in the beginning and 117.4 MB in the end (delta: 62.9 MB). Free memory was 29.2 MB in the beginning and 36.3 MB in the end (delta: -7.2 MB). Peak memory consumption was 58.2 MB. Max. memory is 16.1 GB. [2021-11-06 11:58:39,551 INFO L168 Benchmark]: Boogie Procedure Inliner took 863.17 ms. Allocated memory was 117.4 MB in the beginning and 331.4 MB in the end (delta: 213.9 MB). Free memory was 36.3 MB in the beginning and 240.8 MB in the end (delta: -204.5 MB). Peak memory consumption was 41.0 MB. Max. memory is 16.1 GB. [2021-11-06 11:58:39,552 INFO L168 Benchmark]: Boogie Preprocessor took 811.27 ms. Allocated memory is still 331.4 MB. Free memory was 240.8 MB in the beginning and 177.8 MB in the end (delta: 63.0 MB). Peak memory consumption was 103.9 MB. Max. memory is 16.1 GB. [2021-11-06 11:58:39,553 INFO L168 Benchmark]: RCFGBuilder took 131590.95 ms. Allocated memory was 331.4 MB in the beginning and 891.3 MB in the end (delta: 559.9 MB). Free memory was 177.8 MB in the beginning and 574.9 MB in the end (delta: -397.1 MB). Peak memory consumption was 559.2 MB. Max. memory is 16.1 GB. [2021-11-06 11:58:39,553 INFO L168 Benchmark]: TraceAbstraction took 176755.07 ms. Allocated memory is still 891.3 MB. Free memory was 574.9 MB in the beginning and 283.4 MB in the end (delta: 291.6 MB). Peak memory consumption was 291.6 MB. Max. memory is 16.1 GB. [2021-11-06 11:58:39,555 INFO L168 Benchmark]: Witness Printer took 5.05 ms. Allocated memory is still 891.3 MB. Free memory is still 283.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-06 11:58:39,557 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 54.5 MB. Free memory was 36.5 MB in the beginning and 36.4 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3598.10 ms. Allocated memory was 54.5 MB in the beginning and 117.4 MB in the end (delta: 62.9 MB). Free memory was 29.2 MB in the beginning and 36.3 MB in the end (delta: -7.2 MB). Peak memory consumption was 58.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 863.17 ms. Allocated memory was 117.4 MB in the beginning and 331.4 MB in the end (delta: 213.9 MB). Free memory was 36.3 MB in the beginning and 240.8 MB in the end (delta: -204.5 MB). Peak memory consumption was 41.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 811.27 ms. Allocated memory is still 331.4 MB. Free memory was 240.8 MB in the beginning and 177.8 MB in the end (delta: 63.0 MB). Peak memory consumption was 103.9 MB. Max. memory is 16.1 GB. * RCFGBuilder took 131590.95 ms. Allocated memory was 331.4 MB in the beginning and 891.3 MB in the end (delta: 559.9 MB). Free memory was 177.8 MB in the beginning and 574.9 MB in the end (delta: -397.1 MB). Peak memory consumption was 559.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 176755.07 ms. Allocated memory is still 891.3 MB. Free memory was 574.9 MB in the beginning and 283.4 MB in the end (delta: 291.6 MB). Peak memory consumption was 291.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.05 ms. Allocated memory is still 891.3 MB. Free memory is still 283.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * 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: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 6167. Possible FailurePath: [L6164-L6171] static struct mutex ppp_mutex = {{1}, {{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "ppp_mutex.wait_lock", 0, 0UL}}}}, {& ppp_mutex.wait_list, & ppp_mutex.wait_list}, (struct task_struct *)0, (char const *)0, (void *)(& ppp_mutex), {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "ppp_mutex", 0, 0UL}}; [L6172] static atomic_t ppp_unit_count = {0}; [L6173] static atomic_t channel_count = {0}; [L6174] static int ppp_net_id ; [L6207] static struct class *ppp_class ; [L6268-L6269] static int const npindex_to_proto[6U] = { (int const )33, (int const )87, (int const )43, (int const )41, (int const )641, (int const )643}; [L6313-L6314] static int const npindex_to_ethertype[6U] = { (int const )2048, (int const )34525, (int const )33079, (int const )16, (int const )34887, (int const )34888}; [L7621-L7646] static struct file_operations const ppp_device_fops = {& __this_module, & noop_llseek, & ppp_read, & ppp_write, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (int (*)(struct file * , void * , int (*)(void * , char const * , int , loff_t , u64 , unsigned int ) ))0, & ppp_poll, & ppp_ioctl, (long (*)(struct file * , unsigned int , unsigned long ))0, (int (*)(struct file * , struct vm_area_struct * ))0, & ppp_open, (int (*)(struct file * , fl_owner_t ))0, & ppp_release, (int (*)(struct file * , int ))0, (int (*)(struct kiocb * , int ))0, (int (*)(int , struct file * , int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct file * , struct page * , int , size_t , loff_t * , int ))0, (unsigned long (*)(struct file * , unsigned long , unsigned long , unsigned long , unsigned long ))0, (int (*)(int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct pipe_inode_info * , struct file * , loff_t * , size_t , unsigned int ))0, (ssize_t (*)(struct file * , loff_t * , struct pipe_inode_info * , size_t , unsigned int ))0, (int (*)(struct file * , long , struct file_lock ** ))0, (long (*)(struct file * , int , loff_t , loff_t ))0}; [L7679-L7680] static struct pernet_operations ppp_net_ops = {{(struct list_head *)0, (struct list_head *)0}, & ppp_init_net, & ppp_exit_net, (void (*)(struct list_head * ))0, & ppp_net_id, 376UL}; [L7891-L7927] static struct net_device_ops const ppp_netdev_ops = {(int (*)(struct net_device * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * ))0, & ppp_start_xmit, (u16 (*)(struct net_device * , struct sk_buff * ))0, (void (*)(struct net_device * , int ))0, (void (*)(struct net_device * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , void * ))0, (int (*)(struct net_device * ))0, & ppp_net_ioctl, (int (*)(struct net_device * , struct ifmap * ))0, (int (*)(struct net_device * , int ))0, (int (*)(struct net_device * , struct neigh_parms * ))0, (void (*)(struct net_device * ))0, (struct rtnl_link_stats64 *(*)(struct net_device * , struct rtnl_link_stats64 * ))0, (struct net_device_stats *(*)(struct net_device * ))0, (void (*)(struct net_device * , struct vlan_group * ))0, (void (*)(struct net_device * , unsigned short ))0, (void (*)(struct net_device * , unsigned short ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , struct netpoll_info * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , int , u8 * ))0, (int (*)(struct net_device * , int , u16 , u8 ))0, (int (*)(struct net_device * , int , int ))0, (int (*)(struct net_device * , int , struct ifla_vf_info * ))0, (int (*)(struct net_device * , int , struct nlattr ** ))0, (int (*)(struct net_device * , int , struct sk_buff * ))0, (int (*)(struct net_device * , u8 ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * , u16 , struct scatterlist * , unsigned int ))0, (int (*)(struct net_device * , u16 ))0, (int (*)(struct net_device * , u16 , struct scatterlist * , unsigned int ))0, (int (*)(struct net_device * , u64 * , int ))0, (int (*)(struct net_device * , struct sk_buff const * , u16 , u32 ))0, (int (*)(struct net_device * , struct net_device * ))0, (int (*)(struct net_device * , struct net_device * ))0, (u32 (*)(struct net_device * , u32 ))0, (int (*)(struct net_device * , u32 ))0}; [L8312] static bool mp_protocol_compress = (bool )1; [L9989] static struct list_head compressor_list = {& compressor_list, & compressor_list}; [L9990-L9994] static spinlock_t compressor_list_lock = {{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "compressor_list_lock", 0, 0UL}}}}; [L10620] int LDV_IN_INTERRUPT ; [L10813] int ldv_module_refcounter = 1; VAL [__this_module={0:0}, channel_count={3976753272118577058:0}, compressor_list={-2940779638172940297:0}, compressor_list_lock={2317102008281989126:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1670905830500730800:0}, npindex_to_proto={-8624322911747963333:0}, ppp_class={0:0}, ppp_device_fops={-7552466206356125781:0}, ppp_mutex={1175510146365786016:0}, ppp_net_id={-8047861890488989788:0}, ppp_net_ops={-2940780187928754256:0}, ppp_netdev_ops={-634936628959246423:0}, ppp_unit_count={4913497562205390755:0}] [L10622] struct file *var_group1 ; [L10623] char *var_ppp_read_5_p1 ; [L10624] size_t var_ppp_read_5_p2 ; [L10625] loff_t *var_ppp_read_5_p3 ; [L10626] ssize_t res_ppp_read_5 ; [L10627] char const *var_ppp_write_6_p1 ; [L10628] size_t var_ppp_write_6_p2 ; [L10629] loff_t *var_ppp_write_6_p3 ; [L10630] ssize_t res_ppp_write_6 ; [L10631] poll_table *var_ppp_poll_7_p1 ; [L10632] unsigned int var_ppp_ioctl_9_p1 ; [L10633] unsigned long var_ppp_ioctl_9_p2 ; [L10634] struct inode *var_group2 ; [L10635] int res_ppp_open_3 ; [L10636] struct net *var_group3 ; [L10637] struct sk_buff *var_group4 ; [L10638] struct net_device *var_group5 ; [L10639] struct ifreq *var_group6 ; [L10640] int var_ppp_net_ioctl_15_p2 ; [L10641] int ldv_s_ppp_device_fops_file_operations ; [L10642] int tmp ; [L10643] int tmp___0 ; [L10644] int tmp___1 ; [L10647] ldv_s_ppp_device_fops_file_operations = 0 [L10648] LDV_IN_INTERRUPT = 1 VAL [__this_module={0:0}, channel_count={3976753272118577058:0}, compressor_list={-2940779638172940297:0}, compressor_list_lock={2317102008281989126:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1670905830500730800:0}, npindex_to_proto={-8624322911747963333:0}, ppp_class={0:0}, ppp_device_fops={-7552466206356125781:0}, ppp_mutex={1175510146365786016:0}, ppp_net_id={-8047861890488989788:0}, ppp_net_ops={-2940780187928754256:0}, ppp_netdev_ops={-634936628959246423:0}, ppp_unit_count={4913497562205390755:0}] [L7682] int err ; [L7683] struct lock_class_key __key ; [L7684] struct class *tmp ; [L7685] long tmp___0 ; [L7686] long tmp___1 ; [L11180] return __VERIFIER_nondet_int(); [L7690] err = register_pernet_device(& ppp_net_ops) [L7692] COND FALSE !(err != 0) [L5879] int tmp ; [L11003] return __VERIFIER_nondet_int(); [L5882] tmp = __register_chrdev(major, 0U, 256U, name, fops) [L5884] return (tmp); VAL [__this_module={0:0}, channel_count={3976753272118577058:0}, compressor_list={-2940779638172940297:0}, compressor_list_lock={2317102008281989126:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1670905830500730800:0}, npindex_to_proto={-8624322911747963333:0}, ppp_class={0:0}, ppp_device_fops={-7552466206356125781:0}, ppp_mutex={1175510146365786016:0}, ppp_net_id={-8047861890488989788:0}, ppp_net_ops={-2940780187928754256:0}, ppp_netdev_ops={-634936628959246423:0}, ppp_unit_count={4913497562205390755:0}] [L7700] err = register_chrdev(108U, "ppp", & ppp_device_fops) [L7702] COND FALSE !(err != 0) [L10957] COND TRUE __VERIFIER_nondet_bool() [L10957] return 0; VAL [__this_module={0:0}, channel_count={3976753272118577058:0}, compressor_list={-2940779638172940297:0}, compressor_list_lock={2317102008281989126:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1670905830500730800:0}, npindex_to_proto={-8624322911747963333:0}, ppp_class={0:0}, ppp_device_fops={-7552466206356125781:0}, ppp_mutex={1175510146365786016:0}, ppp_net_id={-8047861890488989788:0}, ppp_net_ops={-2940780187928754256:0}, ppp_netdev_ops={-634936628959246423:0}, ppp_unit_count={4913497562205390755:0}] [L10972] return ldv_malloc(sizeof(struct class)); [L7710] tmp = __class_create(& __this_module, "ppp", & __key) [L7711] ppp_class = tmp [L5217] long tmp ; [L5220] tmp = __builtin_expect((long )((unsigned long )ptr > 0x0ffffffffffff000UL), 0L) [L5222] return (tmp); VAL [__this_module={0:0}, channel_count={3976753272118577058:0}, compressor_list={-2940779638172940297:0}, compressor_list_lock={2317102008281989126:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1670905830500730800:0}, npindex_to_proto={-8624322911747963333:0}, ppp_class={0:0}, ppp_device_fops={-7552466206356125781:0}, ppp_mutex={1175510146365786016:0}, ppp_net_id={-8047861890488989788:0}, ppp_net_ops={-2940780187928754256:0}, ppp_netdev_ops={-634936628959246423:0}, ppp_unit_count={4913497562205390755:0}] [L7712] tmp___1 = IS_ERR((void const *)ppp_class) [L7714] COND FALSE !(tmp___1 != 0L) [L7725] return (0); [L7725] return (0); VAL [__this_module={0:0}, channel_count={3976753272118577058:0}, compressor_list={-2940779638172940297:0}, compressor_list_lock={2317102008281989126:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1670905830500730800:0}, npindex_to_proto={-8624322911747963333:0}, ppp_class={0:0}, ppp_device_fops={-7552466206356125781:0}, ppp_mutex={1175510146365786016:0}, ppp_net_id={-8047861890488989788:0}, ppp_net_ops={-2940780187928754256:0}, ppp_netdev_ops={-634936628959246423:0}, ppp_unit_count={4913497562205390755:0}] [L10650] tmp = ppp_init() [L10652] COND FALSE !(tmp != 0) VAL [__this_module={0:0}, channel_count={3976753272118577058:0}, compressor_list={-2940779638172940297:0}, compressor_list_lock={2317102008281989126:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1670905830500730800:0}, npindex_to_proto={-8624322911747963333:0}, ppp_class={0:0}, ppp_device_fops={-7552466206356125781:0}, ppp_mutex={1175510146365786016:0}, ppp_net_id={-8047861890488989788:0}, ppp_net_ops={-2940780187928754256:0}, ppp_netdev_ops={-634936628959246423:0}, ppp_unit_count={4913497562205390755:0}] [L10784] tmp___1 = __VERIFIER_nondet_int() [L10786] COND TRUE tmp___1 != 0 VAL [__this_module={0:0}, channel_count={3976753272118577058:0}, compressor_list={-2940779638172940297:0}, compressor_list_lock={2317102008281989126:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1670905830500730800:0}, npindex_to_proto={-8624322911747963333:0}, ppp_class={0:0}, ppp_device_fops={-7552466206356125781:0}, ppp_mutex={1175510146365786016:0}, ppp_net_id={-8047861890488989788:0}, ppp_net_ops={-2940780187928754256:0}, ppp_netdev_ops={-634936628959246423:0}, ppp_unit_count={4913497562205390755:0}] [L10659] tmp___0 = __VERIFIER_nondet_int() [L10661] COND FALSE !(tmp___0 == 0) VAL [__this_module={0:0}, channel_count={3976753272118577058:0}, compressor_list={-2940779638172940297:0}, compressor_list_lock={2317102008281989126:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1670905830500730800:0}, npindex_to_proto={-8624322911747963333:0}, ppp_class={0:0}, ppp_device_fops={-7552466206356125781:0}, ppp_mutex={1175510146365786016:0}, ppp_net_id={-8047861890488989788:0}, ppp_net_ops={-2940780187928754256:0}, ppp_netdev_ops={-634936628959246423:0}, ppp_unit_count={4913497562205390755:0}] [L10664] COND FALSE !(tmp___0 == 1) VAL [__this_module={0:0}, channel_count={3976753272118577058:0}, compressor_list={-2940779638172940297:0}, compressor_list_lock={2317102008281989126:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1670905830500730800:0}, npindex_to_proto={-8624322911747963333:0}, ppp_class={0:0}, ppp_device_fops={-7552466206356125781:0}, ppp_mutex={1175510146365786016:0}, ppp_net_id={-8047861890488989788:0}, ppp_net_ops={-2940780187928754256:0}, ppp_netdev_ops={-634936628959246423:0}, ppp_unit_count={4913497562205390755:0}] [L10667] COND FALSE !(tmp___0 == 2) VAL [__this_module={0:0}, channel_count={3976753272118577058:0}, compressor_list={-2940779638172940297:0}, compressor_list_lock={2317102008281989126:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1670905830500730800:0}, npindex_to_proto={-8624322911747963333:0}, ppp_class={0:0}, ppp_device_fops={-7552466206356125781:0}, ppp_mutex={1175510146365786016:0}, ppp_net_id={-8047861890488989788:0}, ppp_net_ops={-2940780187928754256:0}, ppp_netdev_ops={-634936628959246423:0}, ppp_unit_count={4913497562205390755:0}] [L10670] COND FALSE !(tmp___0 == 3) VAL [__this_module={0:0}, channel_count={3976753272118577058:0}, compressor_list={-2940779638172940297:0}, compressor_list_lock={2317102008281989126:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1670905830500730800:0}, npindex_to_proto={-8624322911747963333:0}, ppp_class={0:0}, ppp_device_fops={-7552466206356125781:0}, ppp_mutex={1175510146365786016:0}, ppp_net_id={-8047861890488989788:0}, ppp_net_ops={-2940780187928754256:0}, ppp_netdev_ops={-634936628959246423:0}, ppp_unit_count={4913497562205390755:0}] [L10673] COND FALSE !(tmp___0 == 4) VAL [__this_module={0:0}, channel_count={3976753272118577058:0}, compressor_list={-2940779638172940297:0}, compressor_list_lock={2317102008281989126:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1670905830500730800:0}, npindex_to_proto={-8624322911747963333:0}, ppp_class={0:0}, ppp_device_fops={-7552466206356125781:0}, ppp_mutex={1175510146365786016:0}, ppp_net_id={-8047861890488989788:0}, ppp_net_ops={-2940780187928754256:0}, ppp_netdev_ops={-634936628959246423:0}, ppp_unit_count={4913497562205390755:0}] [L10676] COND TRUE tmp___0 == 5 VAL [__this_module={0:0}, channel_count={3976753272118577058:0}, compressor_list={-2940779638172940297:0}, compressor_list_lock={2317102008281989126:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1670905830500730800:0}, npindex_to_proto={-8624322911747963333:0}, ppp_class={0:0}, ppp_device_fops={-7552466206356125781:0}, ppp_mutex={1175510146365786016:0}, ppp_net_id={-8047861890488989788:0}, ppp_net_ops={-2940780187928754256:0}, ppp_netdev_ops={-634936628959246423:0}, ppp_unit_count={4913497562205390755:0}] [L6746] struct ppp_file *pf ; [L6747] struct ppp *ppp ; [L6748] int err ; [L6749] int val ; [L6750] int val2 ; [L6751] int i ; [L6752] struct ppp_idle idle ; [L6753] struct npioctl npi ; [L6754] int unit ; [L6755] int cflags ; [L6756] struct slcompress *vj ; [L6757] void *argp ; [L6758] int *p ; [L6759] struct task_struct *tmp ; [L6760] int tmp___0 ; [L6761] struct ppp_file const *__mptr ; [L6762] long tmp___1 ; [L6763] long tmp___2 ; [L6764] struct channel *pch ; [L6765] struct ppp_channel *chan ; [L6766] struct ppp_file const *__mptr___0 ; [L6767] int __ret_gu ; [L6768] unsigned long __val_gu ; [L6769] struct ppp_file const *__mptr___1 ; [L6770] int __ret_gu___0 ; [L6771] unsigned long __val_gu___0 ; [L6772] int __ret_gu___1 ; [L6773] unsigned long __val_gu___1 ; [L6774] int __ret_pu ; [L6775] int __pu_val ; [L6776] int __ret_pu___0 ; [L6777] int __pu_val___0 ; [L6778] int __ret_gu___2 ; [L6779] unsigned long __val_gu___2 ; [L6780] int __ret_pu___1 ; [L6781] int __pu_val___1 ; [L6782] int tmp___3 ; [L6783] int __ret_gu___3 ; [L6784] unsigned long __val_gu___3 ; [L6785] unsigned long tmp___4 ; [L6786] int tmp___5 ; [L6787] struct sock_filter *code ; [L6788] struct sock_filter *code___0 ; [L6789] int __ret_gu___4 ; [L6790] unsigned long __val_gu___4 ; [L6792] EXPR file->private_data [L6792] pf = (struct ppp_file *)file->private_data [L6793] err = -14 [L6794] argp = (void *)arg [L6795] p = (int *)argp VAL [__this_module={0:0}, channel_count={3976753272118577058:0}, compressor_list={-2940779638172940297:0}, compressor_list_lock={2317102008281989126:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1670905830500730800:0}, npindex_to_proto={-8624322911747963333:0}, ppp_class={0:0}, ppp_device_fops={-7552466206356125781:0}, ppp_mutex={1175510146365786016:0}, ppp_net_id={-8047861890488989788:0}, ppp_net_ops={-2940780187928754256:0}, ppp_netdev_ops={-634936628959246423:0}, ppp_unit_count={4913497562205390755:0}] [L6796] COND FALSE !((unsigned long )pf == (unsigned long )((struct ppp_file *)0)) VAL [__this_module={0:0}, channel_count={3976753272118577058:0}, compressor_list={-2940779638172940297:0}, compressor_list_lock={2317102008281989126:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1670905830500730800:0}, npindex_to_proto={-8624322911747963333:0}, ppp_class={0:0}, ppp_device_fops={-7552466206356125781:0}, ppp_mutex={1175510146365786016:0}, ppp_net_id={-8047861890488989788:0}, ppp_net_ops={-2940780187928754256:0}, ppp_netdev_ops={-634936628959246423:0}, ppp_unit_count={4913497562205390755:0}] [L6804] COND FALSE !(cmd == 1074033724U) [L6840] EXPR pf->kind VAL [__this_module={0:0}, channel_count={3976753272118577058:0}, compressor_list={-2940779638172940297:0}, compressor_list_lock={2317102008281989126:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1670905830500730800:0}, npindex_to_proto={-8624322911747963333:0}, ppp_class={0:0}, ppp_device_fops={-7552466206356125781:0}, ppp_mutex={1175510146365786016:0}, ppp_net_id={-8047861890488989788:0}, ppp_net_ops={-2940780187928754256:0}, ppp_netdev_ops={-634936628959246423:0}, ppp_unit_count={4913497562205390755:0}] [L6840] COND FALSE !((unsigned int )pf->kind == 2U) [L6923] EXPR pf->kind VAL [__this_module={0:0}, channel_count={3976753272118577058:0}, compressor_list={-2940779638172940297:0}, compressor_list_lock={2317102008281989126:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1670905830500730800:0}, npindex_to_proto={-8624322911747963333:0}, ppp_class={0:0}, ppp_device_fops={-7552466206356125781:0}, ppp_mutex={1175510146365786016:0}, ppp_net_id={-8047861890488989788:0}, ppp_net_ops={-2940780187928754256:0}, ppp_netdev_ops={-634936628959246423:0}, ppp_unit_count={4913497562205390755:0}] [L6923] COND FALSE !((unsigned int )pf->kind != 1U) [L6932] __mptr___1 = (struct ppp_file const *)pf [L6933] ppp = (struct ppp *)__mptr___1 VAL [__this_module={0:0}, channel_count={3976753272118577058:0}, compressor_list={-2940779638172940297:0}, compressor_list_lock={2317102008281989126:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1670905830500730800:0}, npindex_to_proto={-8624322911747963333:0}, ppp_class={0:0}, ppp_device_fops={-7552466206356125781:0}, ppp_mutex={1175510146365786016:0}, ppp_net_id={-8047861890488989788:0}, ppp_net_ops={-2940780187928754256:0}, ppp_netdev_ops={-634936628959246423:0}, ppp_unit_count={4913497562205390755:0}] [L6935] COND FALSE !((int )cmd == 1074033746) VAL [__this_module={0:0}, channel_count={3976753272118577058:0}, compressor_list={-2940779638172940297:0}, compressor_list_lock={2317102008281989126:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1670905830500730800:0}, npindex_to_proto={-8624322911747963333:0}, ppp_class={0:0}, ppp_device_fops={-7552466206356125781:0}, ppp_mutex={1175510146365786016:0}, ppp_net_id={-8047861890488989788:0}, ppp_net_ops={-2940780187928754256:0}, ppp_netdev_ops={-634936628959246423:0}, ppp_unit_count={4913497562205390755:0}] [L6938] COND TRUE (int )cmd == 1074033753 VAL [__this_module={0:0}, channel_count={3976753272118577058:0}, compressor_list={-2940779638172940297:0}, compressor_list_lock={2317102008281989126:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1670905830500730800:0}, npindex_to_proto={-8624322911747963333:0}, ppp_class={0:0}, ppp_device_fops={-7552466206356125781:0}, ppp_mutex={1175510146365786016:0}, ppp_net_id={-8047861890488989788:0}, ppp_net_ops={-2940780187928754256:0}, ppp_netdev_ops={-634936628959246423:0}, ppp_unit_count={4913497562205390755:0}] [L7037] val = (int )__val_gu___1 VAL [__this_module={0:0}, channel_count={3976753272118577058:0}, compressor_list={-2940779638172940297:0}, compressor_list_lock={2317102008281989126:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1670905830500730800:0}, npindex_to_proto={-8624322911747963333:0}, ppp_class={0:0}, ppp_device_fops={-7552466206356125781:0}, ppp_mutex={1175510146365786016:0}, ppp_net_id={-8047861890488989788:0}, ppp_net_ops={-2940780187928754256:0}, ppp_netdev_ops={-634936628959246423:0}, ppp_unit_count={4913497562205390755:0}] [L7038] COND FALSE !(__ret_gu___1 != 0) [L7045] EXPR ppp->flags [L7045] cflags = (int )(ppp->flags & (unsigned int )(~ val)) [L7046] ppp->flags = (unsigned int )val & 4214508U [L7050] COND TRUE (cflags & 64) != 0 [L9952] void *xstate ; [L9953] void *rstate ; [L9954] struct compressor *xcomp ; [L9955] struct compressor *rcomp ; [L9960] EXPR ppp->flags [L9960] ppp->flags = ppp->flags & 4294967103U [L9961] ppp->xstate = 0U [L9962] EXPR ppp->xcomp [L9962] xcomp = ppp->xcomp [L9963] EXPR ppp->xc_state [L9963] xstate = ppp->xc_state [L9964] ppp->xc_state = (void *)0 [L9965] ppp->rstate = 0U [L9966] EXPR ppp->rcomp [L9966] rcomp = ppp->rcomp [L9967] EXPR ppp->rc_state [L9967] rstate = ppp->rc_state [L9968] ppp->rc_state = (void *)0 [L9972] COND TRUE (unsigned long )xstate != (unsigned long )((void *)0) [L9974] xcomp->comp_free [L7931] dev->netdev_ops = & ppp_netdev_ops [L7932] dev->hard_header_len = (unsigned short)4 [L7933] dev->mtu = 1500U [L7934] dev->addr_len = (unsigned char)0 [L7935] dev->tx_queue_len = 3UL [L7936] dev->type = (unsigned short)512 [L7937] dev->flags = 4240U [L7938] EXPR dev->features [L7938] dev->features = dev->features | 8192U [L7939] EXPR dev->priv_flags [L7939] dev->priv_flags = dev->priv_flags & 4294966271U [L9975] xcomp->owner [L10845] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) VAL [__this_module={0:0}, channel_count={3976753272118577058:0}, compressor_list={-2940779638172940297:0}, compressor_list_lock={2317102008281989126:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1670905830500730800:0}, npindex_to_proto={-8624322911747963333:0}, ppp_class={0:0}, ppp_device_fops={-7552466206356125781:0}, ppp_mutex={1175510146365786016:0}, ppp_net_id={-8047861890488989788:0}, ppp_net_ops={-2940780187928754256:0}, ppp_netdev_ops={-634936628959246423:0}, ppp_unit_count={4913497562205390755:0}] [L10846] COND TRUE ldv_module_refcounter <= 1 VAL [__this_module={0:0}, channel_count={3976753272118577058:0}, compressor_list={-2940779638172940297:0}, compressor_list_lock={2317102008281989126:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1670905830500730800:0}, npindex_to_proto={-8624322911747963333:0}, ppp_class={0:0}, ppp_device_fops={-7552466206356125781:0}, ppp_mutex={1175510146365786016:0}, ppp_net_id={-8047861890488989788:0}, ppp_net_ops={-2940780187928754256:0}, ppp_netdev_ops={-634936628959246423:0}, ppp_unit_count={4913497562205390755:0}] [L10809] reach_error() VAL [__this_module={0:0}, channel_count={3976753272118577058:0}, compressor_list={-2940779638172940297:0}, compressor_list_lock={2317102008281989126:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1670905830500730800:0}, npindex_to_proto={-8624322911747963333:0}, ppp_class={0:0}, ppp_device_fops={-7552466206356125781:0}, ppp_mutex={1175510146365786016:0}, ppp_net_id={-8047861890488989788:0}, ppp_net_ops={-2940780187928754256:0}, ppp_netdev_ops={-634936628959246423:0}, ppp_unit_count={4913497562205390755:0}] - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4133 locations, 39 error locations. Started 1 CEGAR loops. OverallTime: 176.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 16343 SDtfs, 15823 SDslu, 29477 SDs, 0 SdLazy, 204 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 170 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15295occurred in iteration=3, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 196 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 77.5s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 135 NumberOfCodeBlocks, 135 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 168 ConstructedInterpolants, 0 QuantifiedInterpolants, 323 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2122 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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 [2021-11-06 11:58:39,645 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 Result: UNKNOWN: Overapproximated counterexample