/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:49:39,647 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:49:39,650 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:49:39,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:49:39,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:49:39,685 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:49:39,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:49:39,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:49:39,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:49:39,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:49:39,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:49:39,695 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:49:39,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:49:39,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:49:39,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:49:39,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:49:39,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:49:39,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:49:39,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:49:39,721 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:49:39,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:49:39,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:49:39,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:49:39,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:49:39,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:49:39,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:49:39,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:49:39,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:49:39,732 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:49:39,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:49:39,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:49:39,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:49:39,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:49:39,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:49:39,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:49:39,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:49:39,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:49:39,740 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:49:39,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:49:39,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:49:39,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:49:39,743 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:49:39,770 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:49:39,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:49:39,772 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:49:39,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:49:39,773 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:49:39,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:49:39,773 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:49:39,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:49:39,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:49:39,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:49:39,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:49:39,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:49:39,775 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:49:39,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:49:39,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:49:39,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:49:39,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:49:39,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:49:39,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:49:39,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:49:39,777 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:49:39,778 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:49:39,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:49:39,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:49:39,778 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:49:39,779 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:49:40,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:49:40,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:49:40,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:49:40,221 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:49:40,222 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:49:40,223 INFO L432 ainManager$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 [2020-12-22 11:49:40,311 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c19ea0fbe/24a76fd807a44f84b055f29781e47d8f/FLAG9e3ede676 [2020-12-22 11:49:41,540 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:49:41,541 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 [2020-12-22 11:49:41,593 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c19ea0fbe/24a76fd807a44f84b055f29781e47d8f/FLAG9e3ede676 [2020-12-22 11:49:41,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c19ea0fbe/24a76fd807a44f84b055f29781e47d8f [2020-12-22 11:49:41,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:49:41,930 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:49:41,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:49:41,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:49:41,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:49:41,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:49:41" (1/1) ... [2020-12-22 11:49:41,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e4eed0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:49:41, skipping insertion in model container [2020-12-22 11:49:41,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:49:41" (1/1) ... [2020-12-22 11:49:41,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:49:42,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:49:44,574 WARN L226 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] [2020-12-22 11:49:44,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:49:44,841 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:49:45,303 WARN L226 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] [2020-12-22 11:49:45,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:49:45,985 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:49:45,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:49:45 WrapperNode [2020-12-22 11:49:45,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:49:45,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:49:45,987 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:49:45,987 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:49:45,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:49:45" (1/1) ... [2020-12-22 11:49:46,123 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:49:45" (1/1) ... [2020-12-22 11:49:46,796 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:49:46,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:49:46,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:49:46,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:49:46,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:49:45" (1/1) ... [2020-12-22 11:49:46,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:49:45" (1/1) ... [2020-12-22 11:49:47,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:49:45" (1/1) ... [2020-12-22 11:49:47,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:49:45" (1/1) ... [2020-12-22 11:49:47,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:49:45" (1/1) ... [2020-12-22 11:49:47,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:49:45" (1/1) ... [2020-12-22 11:49:47,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:49:45" (1/1) ... [2020-12-22 11:49:47,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:49:47,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:49:47,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:49:47,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:49:47,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:49:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:49:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-12-22 11:49:47,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-12-22 11:49:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2020-12-22 11:49:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 11:49:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 11:49:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:49:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 11:49:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:49:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 11:49:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 11:49:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 11:49:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 11:49:47,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:49:47,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 11:49:47,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 11:49:47,944 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-12-22 11:49:47,944 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2020-12-22 11:49:47,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2020-12-22 11:49:47,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:49:47,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:49:47,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:49:49,926 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-22 11:49:50,025 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-22 11:49:50,042 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-22 11:49:53,870 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##667: assume !false; [2020-12-22 11:49:53,870 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##666: assume false; [2020-12-22 11:49:53,870 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##672: assume false; [2020-12-22 11:49:53,871 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##673: assume !false; [2020-12-22 11:49:53,871 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##679: assume !false; [2020-12-22 11:49:53,871 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##678: assume false; [2020-12-22 11:49:53,871 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##687: assume !false; [2020-12-22 11:49:53,871 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##686: assume false; [2020-12-22 11:49:53,872 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##290: assume !false; [2020-12-22 11:49:53,872 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##294: assume !false; [2020-12-22 11:49:53,872 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##293: assume false; [2020-12-22 11:49:53,872 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##289: assume false; [2020-12-22 11:49:53,872 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##789: assume false; [2020-12-22 11:49:53,873 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##790: assume !false; [2020-12-22 11:49:53,873 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##436: assume !false; [2020-12-22 11:49:53,873 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##435: assume false; [2020-12-22 11:49:53,873 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##439: assume false; [2020-12-22 11:49:53,874 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##440: assume !false; [2020-12-22 11:49:53,874 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##445: assume false; [2020-12-22 11:49:53,874 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##446: assume !false; [2020-12-22 11:49:53,874 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##508: assume false; [2020-12-22 11:49:53,877 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##509: assume !false; [2020-12-22 11:49:53,878 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##83: assume !false; [2020-12-22 11:49:53,878 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##82: assume false; [2020-12-22 11:49:53,878 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##89: assume !false; [2020-12-22 11:49:53,878 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume false; [2020-12-22 11:49:53,878 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2020-12-22 11:49:53,879 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-12-22 11:49:53,879 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2020-12-22 11:49:53,879 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-12-22 11:49:53,879 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2020-12-22 11:49:53,880 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2020-12-22 11:49:53,880 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##119: assume !false; [2020-12-22 11:49:53,880 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##118: assume false; [2020-12-22 11:49:53,889 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-22 11:49:54,239 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-22 11:50:12,358 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3743: assume !false; [2020-12-22 11:50:12,359 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3742: assume false; [2020-12-22 11:50:12,359 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##99: assume false; [2020-12-22 11:50:12,359 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##71: assume !false; [2020-12-22 11:50:12,359 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##70: assume false; [2020-12-22 11:50:12,359 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##76: assume !false; [2020-12-22 11:50:12,360 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume false; [2020-12-22 11:50:12,360 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume !false; [2020-12-22 11:50:12,360 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##60: assume false; [2020-12-22 11:50:12,361 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##65: assume false; [2020-12-22 11:50:12,361 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##64: assume !true; [2020-12-22 11:50:12,361 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##69: assume !true; [2020-12-22 11:50:12,361 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##66: assume !false; [2020-12-22 11:50:12,362 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##50: assume !false; [2020-12-22 11:50:12,362 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##57: assume !false; [2020-12-22 11:50:12,363 INFO L759 $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; [2020-12-22 11:50:12,363 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##49: assume false; [2020-12-22 11:50:12,363 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##34: assume !false; [2020-12-22 11:50:12,363 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##33: assume false; [2020-12-22 11:50:12,364 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##100: assume !false; [2020-12-22 11:50:12,364 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##107: assume !false; [2020-12-22 11:50:12,364 INFO L759 $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; [2020-12-22 11:50:12,364 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##111: assume !false; [2020-12-22 11:50:12,365 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##110: assume false; [2020-12-22 11:50:12,365 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##115: assume false; [2020-12-22 11:50:12,365 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##114: assume !true; [2020-12-22 11:50:12,365 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##119: assume !true; [2020-12-22 11:50:12,365 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##116: assume !false; [2020-12-22 11:50:12,365 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##121: assume !false; [2020-12-22 11:50:12,365 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##120: assume false; [2020-12-22 11:50:12,366 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##126: assume !false; [2020-12-22 11:50:12,366 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##125: assume false; [2020-12-22 11:50:12,367 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-1: assume !true; [2020-12-22 11:50:12,367 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-1: goto; [2020-12-22 11:50:12,367 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-4: assume !true; [2020-12-22 11:50:12,367 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-4: goto; [2020-12-22 11:50:12,368 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-1: call __bad_percpu_size(); [2020-12-22 11:50:12,368 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-2: call __bad_percpu_size(); [2020-12-22 11:50:12,368 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-6: call __bad_percpu_size(); [2020-12-22 11:50:12,368 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-3: call __bad_percpu_size(); [2020-12-22 11:50:12,369 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-7: call __bad_percpu_size(); [2020-12-22 11:50:12,369 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-8: call __bad_percpu_size(); [2020-12-22 11:50:12,369 INFO L759 $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; [2020-12-22 11:50:12,370 INFO L759 $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; [2020-12-22 11:50:12,370 INFO L759 $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; [2020-12-22 11:50:12,370 INFO L759 $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; [2020-12-22 11:50:12,371 INFO L759 $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; [2020-12-22 11:50:12,371 INFO L759 $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; [2020-12-22 11:50:12,371 INFO L759 $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; [2020-12-22 11:50:12,371 INFO L759 $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; [2020-12-22 11:50:12,371 INFO L759 $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; [2020-12-22 11:50:12,372 INFO L759 $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; [2020-12-22 11:50:12,372 INFO L759 $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; [2020-12-22 11:50:12,373 INFO L759 $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; [2020-12-22 11:50:12,442 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:50:12,443 INFO L299 CfgBuilder]: Removed 5584 assume(true) statements. [2020-12-22 11:50:12,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:50:12 BoogieIcfgContainer [2020-12-22 11:50:12,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:50:12,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:50:12,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:50:12,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:50:12,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:49:41" (1/3) ... [2020-12-22 11:50:12,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62ce793f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:50:12, skipping insertion in model container [2020-12-22 11:50:12,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:49:45" (2/3) ... [2020-12-22 11:50:12,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62ce793f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:50:12, skipping insertion in model container [2020-12-22 11:50:12,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:50:12" (3/3) ... [2020-12-22 11:50:12,467 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2020-12-22 11:50:12,474 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:50:12,482 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 39 error locations. [2020-12-22 11:50:12,501 INFO L253 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2020-12-22 11:50:12,565 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:50:12,565 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:50:12,565 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:50:12,565 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:50:12,565 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:50:12,565 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:50:12,566 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:50:12,566 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:50:12,644 INFO L276 IsEmpty]: Start isEmpty. Operand 4363 states. [2020-12-22 11:50:12,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:50:12,648 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:50:12,649 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:50:12,650 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ppp_ioctlErr6ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr2ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr4ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr3ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr5ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr9ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr7ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:50:12,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:50:12,656 INFO L82 PathProgramCache]: Analyzing trace with hash 611387097, now seen corresponding path program 1 times [2020-12-22 11:50:12,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:50:12,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218645353] [2020-12-22 11:50:12,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:50:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:50:13,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:50:13,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218645353] [2020-12-22 11:50:13,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:50:13,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:50:13,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386465008] [2020-12-22 11:50:13,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:50:13,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:50:13,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:50:13,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:50:13,233 INFO L87 Difference]: Start difference. First operand 4363 states. Second operand 3 states. [2020-12-22 11:50:14,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:50:14,375 INFO L93 Difference]: Finished difference Result 12998 states and 18305 transitions. [2020-12-22 11:50:14,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:50:14,378 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-22 11:50:14,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:50:14,448 INFO L225 Difference]: With dead ends: 12998 [2020-12-22 11:50:14,449 INFO L226 Difference]: Without dead ends: 8464 [2020-12-22 11:50:14,473 INFO L677 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 [2020-12-22 11:50:14,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8464 states. [2020-12-22 11:50:14,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8464 to 8388. [2020-12-22 11:50:14,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8388 states. [2020-12-22 11:50:14,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8388 states to 8388 states and 11342 transitions. [2020-12-22 11:50:14,861 INFO L78 Accepts]: Start accepts. Automaton has 8388 states and 11342 transitions. Word has length 10 [2020-12-22 11:50:14,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:50:14,862 INFO L481 AbstractCegarLoop]: Abstraction has 8388 states and 11342 transitions. [2020-12-22 11:50:14,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:50:14,862 INFO L276 IsEmpty]: Start isEmpty. Operand 8388 states and 11342 transitions. [2020-12-22 11:50:14,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-22 11:50:14,870 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:50:14,870 INFO L422 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] [2020-12-22 11:50:14,871 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:50:14,871 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ppp_ioctlErr6ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr2ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr4ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr3ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr5ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr9ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr7ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:50:14,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:50:14,872 INFO L82 PathProgramCache]: Analyzing trace with hash -213849618, now seen corresponding path program 1 times [2020-12-22 11:50:14,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:50:14,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735606760] [2020-12-22 11:50:14,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:50:14,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:50:15,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:50:15,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735606760] [2020-12-22 11:50:15,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:50:15,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:50:15,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526349784] [2020-12-22 11:50:15,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:50:15,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:50:15,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:50:15,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:50:15,123 INFO L87 Difference]: Start difference. First operand 8388 states and 11342 transitions. Second operand 3 states. [2020-12-22 11:50:15,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:50:15,609 INFO L93 Difference]: Finished difference Result 18994 states and 25742 transitions. [2020-12-22 11:50:15,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:50:15,611 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2020-12-22 11:50:15,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:50:15,680 INFO L225 Difference]: With dead ends: 18994 [2020-12-22 11:50:15,682 INFO L226 Difference]: Without dead ends: 10627 [2020-12-22 11:50:15,711 INFO L677 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 [2020-12-22 11:50:15,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10627 states. [2020-12-22 11:50:16,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10627 to 10603. [2020-12-22 11:50:16,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10603 states. [2020-12-22 11:50:16,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10603 states to 10603 states and 14399 transitions. [2020-12-22 11:50:16,132 INFO L78 Accepts]: Start accepts. Automaton has 10603 states and 14399 transitions. Word has length 35 [2020-12-22 11:50:16,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:50:16,132 INFO L481 AbstractCegarLoop]: Abstraction has 10603 states and 14399 transitions. [2020-12-22 11:50:16,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:50:16,133 INFO L276 IsEmpty]: Start isEmpty. Operand 10603 states and 14399 transitions. [2020-12-22 11:50:16,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-22 11:50:16,140 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:50:16,140 INFO L422 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] [2020-12-22 11:50:16,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:50:16,141 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ppp_ioctlErr6ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr2ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr4ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr3ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr5ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr9ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr7ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:50:16,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:50:16,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1656598579, now seen corresponding path program 1 times [2020-12-22 11:50:16,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:50:16,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137480166] [2020-12-22 11:50:16,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:50:16,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:50:17,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:50:17,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137480166] [2020-12-22 11:50:17,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:50:17,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:50:17,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875531388] [2020-12-22 11:50:17,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:50:17,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:50:17,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:50:17,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:50:17,100 INFO L87 Difference]: Start difference. First operand 10603 states and 14399 transitions. Second operand 5 states. [2020-12-22 11:50:17,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:50:17,762 INFO L93 Difference]: Finished difference Result 21188 states and 28776 transitions. [2020-12-22 11:50:17,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:50:17,763 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-12-22 11:50:17,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:50:17,841 INFO L225 Difference]: With dead ends: 21188 [2020-12-22 11:50:17,842 INFO L226 Difference]: Without dead ends: 10603 [2020-12-22 11:50:17,872 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:50:17,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10603 states. [2020-12-22 11:50:18,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10603 to 10603. [2020-12-22 11:50:18,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10603 states. [2020-12-22 11:50:18,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10603 states to 10603 states and 14397 transitions. [2020-12-22 11:50:18,223 INFO L78 Accepts]: Start accepts. Automaton has 10603 states and 14397 transitions. Word has length 42 [2020-12-22 11:50:18,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:50:18,223 INFO L481 AbstractCegarLoop]: Abstraction has 10603 states and 14397 transitions. [2020-12-22 11:50:18,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:50:18,223 INFO L276 IsEmpty]: Start isEmpty. Operand 10603 states and 14397 transitions. [2020-12-22 11:50:18,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-22 11:50:18,230 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:50:18,230 INFO L422 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] [2020-12-22 11:50:18,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:50:18,230 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ppp_ioctlErr6ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr2ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr4ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr3ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr5ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr9ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr7ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:50:18,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:50:18,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1930573677, now seen corresponding path program 1 times [2020-12-22 11:50:18,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:50:18,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002256244] [2020-12-22 11:50:18,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:50:18,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 11:50:18,850 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 11:50:19,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 11:50:19,467 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 11:50:19,836 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 11:50:19,836 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 11:50:19,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 11:50:20,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:50:20 BoogieIcfgContainer [2020-12-22 11:50:20,118 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:50:20,119 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:50:20,119 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:50:20,119 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:50:20,120 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:50:12" (3/4) ... [2020-12-22 11:50:20,124 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-22 11:50:20,124 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:50:20,126 INFO L168 Benchmark]: Toolchain (without parser) took 38195.21 ms. Allocated memory was 151.0 MB in the beginning and 1.7 GB in the end (delta: 1.6 GB). Free memory was 113.4 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 273.5 MB. Max. memory is 8.0 GB. [2020-12-22 11:50:20,127 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:50:20,128 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4053.46 ms. Allocated memory was 151.0 MB in the beginning and 329.3 MB in the end (delta: 178.3 MB). Free memory was 113.2 MB in the beginning and 235.9 MB in the end (delta: -122.7 MB). Peak memory consumption was 112.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:50:20,129 INFO L168 Benchmark]: Boogie Procedure Inliner took 809.15 ms. Allocated memory is still 329.3 MB. Free memory was 235.9 MB in the beginning and 204.4 MB in the end (delta: 31.5 MB). Peak memory consumption was 113.8 MB. Max. memory is 8.0 GB. [2020-12-22 11:50:20,130 INFO L168 Benchmark]: Boogie Preprocessor took 1043.39 ms. Allocated memory is still 329.3 MB. Free memory was 204.4 MB in the beginning and 153.1 MB in the end (delta: 51.3 MB). Peak memory consumption was 88.5 MB. Max. memory is 8.0 GB. [2020-12-22 11:50:20,131 INFO L168 Benchmark]: RCFGBuilder took 24612.24 ms. Allocated memory was 329.3 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 153.1 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 534.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:50:20,132 INFO L168 Benchmark]: TraceAbstraction took 7661.24 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 78.4 MB). Peak memory consumption was 512.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:50:20,132 INFO L168 Benchmark]: Witness Printer took 5.34 ms. Allocated memory is still 1.7 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 526.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:50:20,137 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 4053.46 ms. Allocated memory was 151.0 MB in the beginning and 329.3 MB in the end (delta: 178.3 MB). Free memory was 113.2 MB in the beginning and 235.9 MB in the end (delta: -122.7 MB). Peak memory consumption was 112.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 809.15 ms. Allocated memory is still 329.3 MB. Free memory was 235.9 MB in the beginning and 204.4 MB in the end (delta: 31.5 MB). Peak memory consumption was 113.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 1043.39 ms. Allocated memory is still 329.3 MB. Free memory was 204.4 MB in the beginning and 153.1 MB in the end (delta: 51.3 MB). Peak memory consumption was 88.5 MB. Max. memory is 8.0 GB. * RCFGBuilder took 24612.24 ms. Allocated memory was 329.3 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 153.1 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 534.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7661.24 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 78.4 MB). Peak memory consumption was 512.0 MB. Max. memory is 8.0 GB. * Witness Printer took 5.34 ms. Allocated memory is still 1.7 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 526.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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={18446744073709551647:18446744073709551622}, channel_count={81:0}, compressor_list={122:0}, compressor_list_lock={131:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={106:0}, npindex_to_proto={17:0}, ppp_class={0:0}, ppp_device_fops={77:0}, ppp_mutex={90:0}, ppp_net_id={109:0}, ppp_net_ops={93:0}, ppp_netdev_ops={34:0}, ppp_unit_count={70:0}] [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={18446744073709551647:18446744073709551622}, channel_count={81:0}, compressor_list={122:0}, compressor_list_lock={131:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={106:0}, npindex_to_proto={17:0}, ppp_class={0:0}, ppp_device_fops={77:0}, ppp_mutex={90:0}, ppp_net_id={109:0}, ppp_net_ops={93:0}, ppp_netdev_ops={34:0}, ppp_unit_count={70:0}] [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={18446744073709551647:18446744073709551622}, channel_count={81:0}, compressor_list={122:0}, compressor_list_lock={131:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={106:0}, npindex_to_proto={17:0}, ppp_class={0:0}, ppp_device_fops={77:0}, ppp_mutex={90:0}, ppp_net_id={109:0}, ppp_net_ops={93:0}, ppp_netdev_ops={34:0}, ppp_unit_count={70:0}] [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={18446744073709551647:18446744073709551622}, channel_count={81:0}, compressor_list={122:0}, compressor_list_lock={131:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={106:0}, npindex_to_proto={17:0}, ppp_class={0:0}, ppp_device_fops={77:0}, ppp_mutex={90:0}, ppp_net_id={109:0}, ppp_net_ops={93:0}, ppp_netdev_ops={34:0}, ppp_unit_count={70:0}] [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={18446744073709551647:18446744073709551622}, channel_count={81:0}, compressor_list={122:0}, compressor_list_lock={131:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={106:0}, npindex_to_proto={17:0}, ppp_class={0:0}, ppp_device_fops={77:0}, ppp_mutex={90:0}, ppp_net_id={109:0}, ppp_net_ops={93:0}, ppp_netdev_ops={34:0}, ppp_unit_count={70:0}] [L7712] tmp___1 = IS_ERR((void const *)ppp_class) [L7714] COND FALSE !(tmp___1 != 0L) [L7725] return (0); [L7725] return (0); VAL [__this_module={18446744073709551647:18446744073709551622}, channel_count={81:0}, compressor_list={122:0}, compressor_list_lock={131:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={106:0}, npindex_to_proto={17:0}, ppp_class={0:0}, ppp_device_fops={77:0}, ppp_mutex={90:0}, ppp_net_id={109:0}, ppp_net_ops={93:0}, ppp_netdev_ops={34:0}, ppp_unit_count={70:0}] [L10650] tmp = ppp_init() [L10652] COND FALSE !(tmp != 0) VAL [__this_module={18446744073709551647:18446744073709551622}, channel_count={81:0}, compressor_list={122:0}, compressor_list_lock={131:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={106:0}, npindex_to_proto={17:0}, ppp_class={0:0}, ppp_device_fops={77:0}, ppp_mutex={90:0}, ppp_net_id={109:0}, ppp_net_ops={93:0}, ppp_netdev_ops={34:0}, ppp_unit_count={70:0}] [L10784] tmp___1 = __VERIFIER_nondet_int() [L10786] COND TRUE tmp___1 != 0 VAL [__this_module={18446744073709551647:18446744073709551622}, channel_count={81:0}, compressor_list={122:0}, compressor_list_lock={131:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={106:0}, npindex_to_proto={17:0}, ppp_class={0:0}, ppp_device_fops={77:0}, ppp_mutex={90:0}, ppp_net_id={109:0}, ppp_net_ops={93:0}, ppp_netdev_ops={34:0}, ppp_unit_count={70:0}] [L10659] tmp___0 = __VERIFIER_nondet_int() [L10661] COND FALSE !(tmp___0 == 0) VAL [__this_module={18446744073709551647:18446744073709551622}, channel_count={81:0}, compressor_list={122:0}, compressor_list_lock={131:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={106:0}, npindex_to_proto={17:0}, ppp_class={0:0}, ppp_device_fops={77:0}, ppp_mutex={90:0}, ppp_net_id={109:0}, ppp_net_ops={93:0}, ppp_netdev_ops={34:0}, ppp_unit_count={70:0}] [L10664] COND FALSE !(tmp___0 == 1) VAL [__this_module={18446744073709551647:18446744073709551622}, channel_count={81:0}, compressor_list={122:0}, compressor_list_lock={131:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={106:0}, npindex_to_proto={17:0}, ppp_class={0:0}, ppp_device_fops={77:0}, ppp_mutex={90:0}, ppp_net_id={109:0}, ppp_net_ops={93:0}, ppp_netdev_ops={34:0}, ppp_unit_count={70:0}] [L10667] COND FALSE !(tmp___0 == 2) VAL [__this_module={18446744073709551647:18446744073709551622}, channel_count={81:0}, compressor_list={122:0}, compressor_list_lock={131:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={106:0}, npindex_to_proto={17:0}, ppp_class={0:0}, ppp_device_fops={77:0}, ppp_mutex={90:0}, ppp_net_id={109:0}, ppp_net_ops={93:0}, ppp_netdev_ops={34:0}, ppp_unit_count={70:0}] [L10670] COND FALSE !(tmp___0 == 3) VAL [__this_module={18446744073709551647:18446744073709551622}, channel_count={81:0}, compressor_list={122:0}, compressor_list_lock={131:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={106:0}, npindex_to_proto={17:0}, ppp_class={0:0}, ppp_device_fops={77:0}, ppp_mutex={90:0}, ppp_net_id={109:0}, ppp_net_ops={93:0}, ppp_netdev_ops={34:0}, ppp_unit_count={70:0}] [L10673] COND FALSE !(tmp___0 == 4) VAL [__this_module={18446744073709551647:18446744073709551622}, channel_count={81:0}, compressor_list={122:0}, compressor_list_lock={131:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={106:0}, npindex_to_proto={17:0}, ppp_class={0:0}, ppp_device_fops={77:0}, ppp_mutex={90:0}, ppp_net_id={109:0}, ppp_net_ops={93:0}, ppp_netdev_ops={34:0}, ppp_unit_count={70:0}] [L10676] COND TRUE tmp___0 == 5 VAL [__this_module={18446744073709551647:18446744073709551622}, channel_count={81:0}, compressor_list={122:0}, compressor_list_lock={131:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={106:0}, npindex_to_proto={17:0}, ppp_class={0:0}, ppp_device_fops={77:0}, ppp_mutex={90:0}, ppp_net_id={109:0}, ppp_net_ops={93:0}, ppp_netdev_ops={34:0}, ppp_unit_count={70:0}] [L10753] CALL ppp_ioctl(var_group1, var_ppp_ioctl_9_p1, var_ppp_ioctl_9_p2) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551647:18446744073709551622}, channel_count={81:0}, compressor_list={122:0}, compressor_list_lock={131:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={106:0}, npindex_to_proto={17:0}, ppp_class={0:0}, ppp_device_fops={77:0}, ppp_mutex={90:0}, ppp_net_id={109:0}, ppp_net_ops={93:0}, ppp_netdev_ops={34:0}, ppp_unit_count={70:0}] [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={18446744073709551647:18446744073709551622}, channel_count={81:0}, compressor_list={122:0}, compressor_list_lock={131:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={106:0}, npindex_to_proto={17:0}, ppp_class={0:0}, ppp_device_fops={77:0}, ppp_mutex={90:0}, ppp_net_id={109:0}, ppp_net_ops={93:0}, ppp_netdev_ops={34:0}, ppp_unit_count={70:0}] [L6796] COND FALSE !((unsigned long )pf == (unsigned long )((struct ppp_file *)0)) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551647:18446744073709551622}, channel_count={81:0}, compressor_list={122:0}, compressor_list_lock={131:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={106:0}, npindex_to_proto={17:0}, ppp_class={0:0}, ppp_device_fops={77:0}, ppp_mutex={90:0}, ppp_net_id={109:0}, ppp_net_ops={93:0}, ppp_netdev_ops={34:0}, ppp_unit_count={70:0}] [L6804] COND FALSE !(cmd == 1074033724U) [L6840] EXPR pf->kind VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551647:18446744073709551622}, channel_count={81:0}, compressor_list={122:0}, compressor_list_lock={131:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={106:0}, npindex_to_proto={17:0}, ppp_class={0:0}, ppp_device_fops={77:0}, ppp_mutex={90:0}, ppp_net_id={109:0}, ppp_net_ops={93:0}, ppp_netdev_ops={34:0}, ppp_unit_count={70:0}] [L6840] COND FALSE !((unsigned int )pf->kind == 2U) [L6923] EXPR pf->kind VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551647:18446744073709551622}, channel_count={81:0}, compressor_list={122:0}, compressor_list_lock={131:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={106:0}, npindex_to_proto={17:0}, ppp_class={0:0}, ppp_device_fops={77:0}, ppp_mutex={90:0}, ppp_net_id={109:0}, ppp_net_ops={93:0}, ppp_netdev_ops={34:0}, ppp_unit_count={70:0}] [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={18446744073709551647:18446744073709551622}, channel_count={81:0}, compressor_list={122:0}, compressor_list_lock={131:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={106:0}, npindex_to_proto={17:0}, ppp_class={0:0}, ppp_device_fops={77:0}, ppp_mutex={90:0}, ppp_net_id={109:0}, ppp_net_ops={93:0}, ppp_netdev_ops={34:0}, ppp_unit_count={70:0}] [L6935] COND FALSE !((int )cmd == 1074033746) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551647:18446744073709551622}, channel_count={81:0}, compressor_list={122:0}, compressor_list_lock={131:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={106:0}, npindex_to_proto={17:0}, ppp_class={0:0}, ppp_device_fops={77:0}, ppp_mutex={90:0}, ppp_net_id={109:0}, ppp_net_ops={93:0}, ppp_netdev_ops={34:0}, ppp_unit_count={70:0}] [L6938] COND TRUE (int )cmd == 1074033753 VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551647:18446744073709551622}, channel_count={81:0}, compressor_list={122:0}, compressor_list_lock={131:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={106:0}, npindex_to_proto={17:0}, ppp_class={0:0}, ppp_device_fops={77:0}, ppp_mutex={90:0}, ppp_net_id={109:0}, ppp_net_ops={93:0}, ppp_netdev_ops={34:0}, ppp_unit_count={70:0}] [L7037] val = (int )__val_gu___1 VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551647:18446744073709551622}, channel_count={81:0}, compressor_list={122:0}, compressor_list_lock={131:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={106:0}, npindex_to_proto={17:0}, ppp_class={0:0}, ppp_device_fops={77:0}, ppp_mutex={90:0}, ppp_net_id={109:0}, ppp_net_ops={93:0}, ppp_netdev_ops={34:0}, ppp_unit_count={70:0}] [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={18446744073709551647:18446744073709551622}, channel_count={81:0}, compressor_list={122:0}, compressor_list_lock={131:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={106:0}, npindex_to_proto={17:0}, ppp_class={0:0}, ppp_device_fops={77:0}, ppp_mutex={90:0}, ppp_net_id={109:0}, ppp_net_ops={93:0}, ppp_netdev_ops={34:0}, ppp_unit_count={70:0}] [L10846] COND TRUE ldv_module_refcounter <= 1 VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551647:18446744073709551622}, channel_count={81:0}, compressor_list={122:0}, compressor_list_lock={131:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={106:0}, npindex_to_proto={17:0}, ppp_class={0:0}, ppp_device_fops={77:0}, ppp_mutex={90:0}, ppp_net_id={109:0}, ppp_net_ops={93:0}, ppp_netdev_ops={34:0}, ppp_unit_count={70:0}] [L10809] reach_error() VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551647:18446744073709551622}, channel_count={81:0}, compressor_list={122:0}, compressor_list_lock={131:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={106:0}, npindex_to_proto={17:0}, ppp_class={0:0}, ppp_device_fops={77:0}, ppp_mutex={90:0}, ppp_net_id={109:0}, ppp_net_ops={93:0}, ppp_netdev_ops={34:0}, ppp_unit_count={70:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 4363 locations, 39 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 17432 SDtfs, 7477 SDslu, 28750 SDs, 0 SdLazy, 194 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10603occurred in iteration=2, 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, 100 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 4998 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 Received shutdown request...