./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 bfd0d9ac 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 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-bfd0d9a [2021-11-01 11:12:54,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-01 11:12:54,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-01 11:12:54,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-01 11:12:54,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-01 11:12:54,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-01 11:12:54,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-01 11:12:54,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-01 11:12:54,655 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-01 11:12:54,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-01 11:12:54,656 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-01 11:12:54,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-01 11:12:54,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-01 11:12:54,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-01 11:12:54,664 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-01 11:12:54,669 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-01 11:12:54,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-01 11:12:54,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-01 11:12:54,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-01 11:12:54,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-01 11:12:54,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-01 11:12:54,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-01 11:12:54,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-01 11:12:54,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-01 11:12:54,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-01 11:12:54,683 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-01 11:12:54,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-01 11:12:54,684 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-01 11:12:54,685 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-01 11:12:54,685 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-01 11:12:54,686 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-01 11:12:54,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-01 11:12:54,687 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-01 11:12:54,688 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-01 11:12:54,689 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-01 11:12:54,689 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-01 11:12:54,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-01 11:12:54,690 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-01 11:12:54,690 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-01 11:12:54,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-01 11:12:54,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-01 11:12:54,693 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-01 11:12:54,719 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-01 11:12:54,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-01 11:12:54,720 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-01 11:12:54,720 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-01 11:12:54,721 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-01 11:12:54,721 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-01 11:12:54,721 INFO L138 SettingsManager]: * Use SBE=true [2021-11-01 11:12:54,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-01 11:12:54,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-01 11:12:54,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-01 11:12:54,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-01 11:12:54,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-01 11:12:54,723 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-01 11:12:54,723 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-01 11:12:54,723 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-01 11:12:54,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-01 11:12:54,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-01 11:12:54,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-01 11:12:54,724 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-01 11:12:54,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-01 11:12:54,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-01 11:12:54,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-01 11:12:54,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-01 11:12:54,724 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-01 11:12:54,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-01 11:12:54,725 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-01 11:12:54,725 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-01 11:12:54,725 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-01 11:12:54,725 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-01 11:12:54,725 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70890f3d08defb801ef42dfcccb814d43a0397723b39cd10a6795cae91719bfb [2021-11-01 11:12:54,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-01 11:12:54,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-01 11:12:54,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-01 11:12:54,894 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-01 11:12:54,895 INFO L275 PluginConnector]: CDTParser initialized [2021-11-01 11:12:54,895 INFO L432 ainManager$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 [2021-11-01 11:12:54,935 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ea2383e7/bf33e5fea1b14c339f7633c3d0f97a38/FLAG069a80682 [2021-11-01 11:12:55,485 INFO L306 CDTParser]: Found 1 translation units. [2021-11-01 11:12:55,486 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 [2021-11-01 11:12:55,518 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ea2383e7/bf33e5fea1b14c339f7633c3d0f97a38/FLAG069a80682 [2021-11-01 11:12:55,749 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ea2383e7/bf33e5fea1b14c339f7633c3d0f97a38 [2021-11-01 11:12:55,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-01 11:12:55,753 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-01 11:12:55,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-01 11:12:55,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-01 11:12:55,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-01 11:12:55,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 11:12:55" (1/1) ... [2021-11-01 11:12:55,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2515f782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:12:55, skipping insertion in model container [2021-11-01 11:12:55,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 11:12:55" (1/1) ... [2021-11-01 11:12:55,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-01 11:12:55,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-01 11:12:56,988 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] [2021-11-01 11:12:57,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-01 11:12:57,036 INFO L203 MainTranslator]: Completed pre-run [2021-11-01 11:12:57,251 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] [2021-11-01 11:12:57,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-01 11:12:57,438 INFO L208 MainTranslator]: Completed translation [2021-11-01 11:12:57,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:12:57 WrapperNode [2021-11-01 11:12:57,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-01 11:12:57,441 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-01 11:12:57,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-01 11:12:57,441 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-01 11:12:57,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:12:57" (1/1) ... [2021-11-01 11:12:57,502 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:12:57" (1/1) ... [2021-11-01 11:12:57,924 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-01 11:12:57,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-01 11:12:57,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-01 11:12:57,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-01 11:12:57,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:12:57" (1/1) ... [2021-11-01 11:12:57,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:12:57" (1/1) ... [2021-11-01 11:12:58,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:12:57" (1/1) ... [2021-11-01 11:12:58,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:12:57" (1/1) ... [2021-11-01 11:12:58,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:12:57" (1/1) ... [2021-11-01 11:12:58,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:12:57" (1/1) ... [2021-11-01 11:12:58,608 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:12:57" (1/1) ... [2021-11-01 11:12:58,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-01 11:12:58,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-01 11:12:58,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-01 11:12:58,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-01 11:12:58,689 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:12:57" (1/1) ... [2021-11-01 11:12:58,694 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-01 11:12:58,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-01 11:12:58,745 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) [2021-11-01 11:12:58,769 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 [2021-11-01 11:12:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-01 11:12:58,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-01 11:12:58,788 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-01 11:12:58,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-01 11:12:58,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-01 11:12:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-01 11:12:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-01 11:12:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-01 11:12:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-01 11:12:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-01 11:12:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-01 11:12:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-01 11:12:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-01 11:12:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-01 11:12:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-01 11:12:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-01 11:12:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2021-11-01 11:12:58,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2021-11-01 11:12:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-01 11:12:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-01 11:12:58,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-01 11:12:59,331 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-01 11:12:59,346 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-01 11:12:59,351 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-01 11:13:00,018 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##667: assume !false; [2021-11-01 11:13:00,019 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##666: assume false; [2021-11-01 11:13:00,019 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##672: assume false; [2021-11-01 11:13:00,019 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##673: assume !false; [2021-11-01 11:13:00,019 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##679: assume !false; [2021-11-01 11:13:00,019 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##678: assume false; [2021-11-01 11:13:00,019 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##687: assume !false; [2021-11-01 11:13:00,020 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##686: assume false; [2021-11-01 11:13:00,020 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##290: assume !false; [2021-11-01 11:13:00,020 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##294: assume !false; [2021-11-01 11:13:00,020 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##293: assume false; [2021-11-01 11:13:00,020 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##289: assume false; [2021-11-01 11:13:00,020 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##789: assume false; [2021-11-01 11:13:00,020 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##790: assume !false; [2021-11-01 11:13:00,021 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##436: assume !false; [2021-11-01 11:13:00,021 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##435: assume false; [2021-11-01 11:13:00,021 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##439: assume false; [2021-11-01 11:13:00,021 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##440: assume !false; [2021-11-01 11:13:00,021 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##445: assume false; [2021-11-01 11:13:00,021 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##446: assume !false; [2021-11-01 11:13:00,021 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##508: assume false; [2021-11-01 11:13:00,021 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##509: assume !false; [2021-11-01 11:13:00,022 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##83: assume !false; [2021-11-01 11:13:00,022 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##82: assume false; [2021-11-01 11:13:00,022 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##89: assume !false; [2021-11-01 11:13:00,022 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume false; [2021-11-01 11:13:00,022 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2021-11-01 11:13:00,022 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2021-11-01 11:13:00,023 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2021-11-01 11:13:00,030 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2021-11-01 11:13:00,031 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2021-11-01 11:13:00,031 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2021-11-01 11:13:00,031 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##119: assume !false; [2021-11-01 11:13:00,031 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##118: assume false; [2021-11-01 11:13:00,033 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-01 11:13:00,212 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-01 11:13:01,689 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3743: assume !false; [2021-11-01 11:13:01,689 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3742: assume false; [2021-11-01 11:13:01,689 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##99: assume false; [2021-11-01 11:13:01,689 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##71: assume !false; [2021-11-01 11:13:01,689 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##70: assume false; [2021-11-01 11:13:01,689 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##76: assume !false; [2021-11-01 11:13:01,690 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume false; [2021-11-01 11:13:01,690 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume !false; [2021-11-01 11:13:01,690 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##60: assume false; [2021-11-01 11:13:01,690 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##65: assume false; [2021-11-01 11:13:01,690 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##64: assume !true; [2021-11-01 11:13:01,690 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##69: assume !true; [2021-11-01 11:13:01,690 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##66: assume !false; [2021-11-01 11:13:01,690 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##50: assume !false; [2021-11-01 11:13:01,690 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##57: assume !false; [2021-11-01 11:13:01,691 INFO L757 $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; [2021-11-01 11:13:01,691 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##49: assume false; [2021-11-01 11:13:01,691 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##34: assume !false; [2021-11-01 11:13:01,691 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##33: assume false; [2021-11-01 11:13:01,691 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##100: assume !false; [2021-11-01 11:13:01,691 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##107: assume !false; [2021-11-01 11:13:01,691 INFO L757 $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; [2021-11-01 11:13:01,692 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##111: assume !false; [2021-11-01 11:13:01,692 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##110: assume false; [2021-11-01 11:13:01,692 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##115: assume false; [2021-11-01 11:13:01,692 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##114: assume !true; [2021-11-01 11:13:01,692 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##119: assume !true; [2021-11-01 11:13:01,692 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##116: assume !false; [2021-11-01 11:13:01,692 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##121: assume !false; [2021-11-01 11:13:01,692 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##120: assume false; [2021-11-01 11:13:01,692 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##126: assume !false; [2021-11-01 11:13:01,693 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##125: assume false; [2021-11-01 11:13:01,693 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-1: assume !true; [2021-11-01 11:13:01,693 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-1: goto; [2021-11-01 11:13:01,693 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-4: assume !true; [2021-11-01 11:13:01,693 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-4: goto; [2021-11-01 11:13:01,693 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-1: call __bad_percpu_size(); [2021-11-01 11:13:01,694 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-2: call __bad_percpu_size(); [2021-11-01 11:13:01,694 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-6: call __bad_percpu_size(); [2021-11-01 11:13:01,694 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-3: call __bad_percpu_size(); [2021-11-01 11:13:01,694 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-7: call __bad_percpu_size(); [2021-11-01 11:13:01,694 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-8: call __bad_percpu_size(); [2021-11-01 11:13:01,694 INFO L757 $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; [2021-11-01 11:13:01,694 INFO L757 $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; [2021-11-01 11:13:01,694 INFO L757 $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; [2021-11-01 11:13:01,695 INFO L757 $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; [2021-11-01 11:13:01,695 INFO L757 $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; [2021-11-01 11:13:01,695 INFO L757 $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; [2021-11-01 11:13:01,695 INFO L757 $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; [2021-11-01 11:13:01,695 INFO L757 $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; [2021-11-01 11:13:01,695 INFO L757 $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; [2021-11-01 11:13:01,695 INFO L757 $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; [2021-11-01 11:13:01,695 INFO L757 $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; [2021-11-01 11:13:01,696 INFO L757 $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; [2021-11-01 11:13:01,711 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-01 11:13:01,712 INFO L299 CfgBuilder]: Removed 5584 assume(true) statements. [2021-11-01 11:13:01,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 11:13:01 BoogieIcfgContainer [2021-11-01 11:13:01,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-01 11:13:01,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-01 11:13:01,717 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-01 11:13:01,719 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-01 11:13:01,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 11:12:55" (1/3) ... [2021-11-01 11:13:01,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66de05f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 11:13:01, skipping insertion in model container [2021-11-01 11:13:01,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:12:57" (2/3) ... [2021-11-01 11:13:01,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66de05f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 11:13:01, skipping insertion in model container [2021-11-01 11:13:01,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 11:13:01" (3/3) ... [2021-11-01 11:13:01,721 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2021-11-01 11:13:01,724 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-01 11:13:01,724 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 39 error locations. [2021-11-01 11:13:01,760 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-01 11:13:01,764 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 [2021-11-01 11:13:01,764 INFO L340 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2021-11-01 11:13:01,810 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) [2021-11-01 11:13:01,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-01 11:13:01,813 INFO L506 BasicCegarLoop]: Found error trace [2021-11-01 11:13:01,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-01 11:13:01,814 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)] === [2021-11-01 11:13:01,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-01 11:13:01,817 INFO L85 PathProgramCache]: Analyzing trace with hash 611387097, now seen corresponding path program 1 times [2021-11-01 11:13:01,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-01 11:13:01,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23952330] [2021-11-01 11:13:01,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-01 11:13:01,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-01 11:13:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-01 11:13:02,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-01 11:13:02,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-01 11:13:02,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23952330] [2021-11-01 11:13:02,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23952330] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-01 11:13:02,186 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-01 11:13:02,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-01 11:13:02,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367230570] [2021-11-01 11:13:02,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-01 11:13:02,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-01 11:13:02,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-01 11:13:02,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-01 11:13:02,212 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) [2021-11-01 11:13:20,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-01 11:13:20,104 INFO L93 Difference]: Finished difference Result 12998 states and 18305 transitions. [2021-11-01 11:13:20,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-01 11:13:20,106 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 [2021-11-01 11:13:20,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-01 11:13:20,147 INFO L225 Difference]: With dead ends: 12998 [2021-11-01 11:13:20,147 INFO L226 Difference]: Without dead ends: 8464 [2021-11-01 11:13:20,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.33ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-01 11:13:20,163 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 5897 mSDsluCounter, 5840 mSDsCounter, 0 mSdLazyCounter, 11761 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15112.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5897 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 11800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.54ms SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 11761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17341.71ms IncrementalHoareTripleChecker+Time [2021-11-01 11:13:20,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5897 Valid, 186 Invalid, 11800 Unknown, 0 Unchecked, 35.54ms Time], IncrementalHoareTripleChecker [39 Valid, 11761 Invalid, 0 Unknown, 0 Unchecked, 17341.71ms Time] [2021-11-01 11:13:20,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8464 states. [2021-11-01 11:13:20,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8464 to 8388. [2021-11-01 11:13:20,376 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) [2021-11-01 11:13:20,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8388 states to 8388 states and 11344 transitions. [2021-11-01 11:13:20,407 INFO L78 Accepts]: Start accepts. Automaton has 8388 states and 11344 transitions. Word has length 10 [2021-11-01 11:13:20,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-01 11:13:20,408 INFO L470 AbstractCegarLoop]: Abstraction has 8388 states and 11344 transitions. [2021-11-01 11:13:20,408 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) [2021-11-01 11:13:20,408 INFO L276 IsEmpty]: Start isEmpty. Operand 8388 states and 11344 transitions. [2021-11-01 11:13:20,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-01 11:13:20,417 INFO L506 BasicCegarLoop]: Found error trace [2021-11-01 11:13:20,417 INFO L514 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] [2021-11-01 11:13:20,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-01 11:13:20,417 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)] === [2021-11-01 11:13:20,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-01 11:13:20,420 INFO L85 PathProgramCache]: Analyzing trace with hash -213849618, now seen corresponding path program 1 times [2021-11-01 11:13:20,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-01 11:13:20,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114223159] [2021-11-01 11:13:20,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-01 11:13:20,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-01 11:13:20,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-01 11:13:20,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-01 11:13:20,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-01 11:13:20,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114223159] [2021-11-01 11:13:20,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114223159] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-01 11:13:20,558 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-01 11:13:20,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-01 11:13:20,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268122404] [2021-11-01 11:13:20,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-01 11:13:20,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-01 11:13:20,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-01 11:13:20,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-01 11:13:20,561 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) [2021-11-01 11:13:36,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-01 11:13:36,068 INFO L93 Difference]: Finished difference Result 19006 states and 25759 transitions. [2021-11-01 11:13:36,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-01 11:13:36,069 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 [2021-11-01 11:13:36,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-01 11:13:36,102 INFO L225 Difference]: With dead ends: 19006 [2021-11-01 11:13:36,103 INFO L226 Difference]: Without dead ends: 10639 [2021-11-01 11:13:36,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.91ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-01 11:13:36,118 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 1578 mSDsluCounter, 5703 mSDsCounter, 0 mSdLazyCounter, 11451 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13250.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1579 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 11458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.39ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 11451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15166.65ms IncrementalHoareTripleChecker+Time [2021-11-01 11:13:36,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1579 Valid, 13 Invalid, 11458 Unknown, 0 Unchecked, 20.39ms Time], IncrementalHoareTripleChecker [7 Valid, 11451 Invalid, 0 Unknown, 0 Unchecked, 15166.65ms Time] [2021-11-01 11:13:36,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10639 states. [2021-11-01 11:13:36,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10639 to 10603. [2021-11-01 11:13:36,272 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) [2021-11-01 11:13:36,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10603 states to 10603 states and 14401 transitions. [2021-11-01 11:13:36,290 INFO L78 Accepts]: Start accepts. Automaton has 10603 states and 14401 transitions. Word has length 35 [2021-11-01 11:13:36,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-01 11:13:36,291 INFO L470 AbstractCegarLoop]: Abstraction has 10603 states and 14401 transitions. [2021-11-01 11:13:36,291 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) [2021-11-01 11:13:36,291 INFO L276 IsEmpty]: Start isEmpty. Operand 10603 states and 14401 transitions. [2021-11-01 11:13:36,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-01 11:13:36,294 INFO L506 BasicCegarLoop]: Found error trace [2021-11-01 11:13:36,294 INFO L514 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] [2021-11-01 11:13:36,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-01 11:13:36,296 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)] === [2021-11-01 11:13:36,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-01 11:13:36,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1656598579, now seen corresponding path program 1 times [2021-11-01 11:13:36,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-01 11:13:36,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870129905] [2021-11-01 11:13:36,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-01 11:13:36,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-01 11:13:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-01 11:13:36,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-01 11:13:36,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-01 11:13:36,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870129905] [2021-11-01 11:13:36,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870129905] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-01 11:13:36,639 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-01 11:13:36,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-01 11:13:36,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321901121] [2021-11-01 11:13:36,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-01 11:13:36,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-01 11:13:36,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-01 11:13:36,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-01 11:13:36,641 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) [2021-11-01 11:14:05,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-01 11:14:05,084 INFO L93 Difference]: Finished difference Result 21188 states and 28780 transitions. [2021-11-01 11:14:05,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-01 11:14:05,084 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 [2021-11-01 11:14:05,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-01 11:14:05,126 INFO L225 Difference]: With dead ends: 21188 [2021-11-01 11:14:05,126 INFO L226 Difference]: Without dead ends: 10603 [2021-11-01 11:14:05,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.28ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-01 11:14:05,151 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 4 mSDsluCounter, 17230 mSDsCounter, 0 mSdLazyCounter, 22970 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25151.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 22971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 38.60ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28035.77ms IncrementalHoareTripleChecker+Time [2021-11-01 11:14:05,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 24 Invalid, 22971 Unknown, 0 Unchecked, 38.60ms Time], IncrementalHoareTripleChecker [1 Valid, 22970 Invalid, 0 Unknown, 0 Unchecked, 28035.77ms Time] [2021-11-01 11:14:05,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10603 states. [2021-11-01 11:14:05,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10603 to 10603. [2021-11-01 11:14:05,296 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) [2021-11-01 11:14:05,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10603 states to 10603 states and 14399 transitions. [2021-11-01 11:14:05,311 INFO L78 Accepts]: Start accepts. Automaton has 10603 states and 14399 transitions. Word has length 42 [2021-11-01 11:14:05,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-01 11:14:05,311 INFO L470 AbstractCegarLoop]: Abstraction has 10603 states and 14399 transitions. [2021-11-01 11:14:05,316 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) [2021-11-01 11:14:05,316 INFO L276 IsEmpty]: Start isEmpty. Operand 10603 states and 14399 transitions. [2021-11-01 11:14:05,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-01 11:14:05,319 INFO L506 BasicCegarLoop]: Found error trace [2021-11-01 11:14:05,320 INFO L514 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] [2021-11-01 11:14:05,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-01 11:14:05,320 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)] === [2021-11-01 11:14:05,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-01 11:14:05,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1930573677, now seen corresponding path program 1 times [2021-11-01 11:14:05,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-01 11:14:05,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867752058] [2021-11-01 11:14:05,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-01 11:14:05,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-01 11:14:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-01 11:14:05,623 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-01 11:14:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-01 11:14:05,947 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-01 11:14:05,947 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-01 11:14:05,948 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ppp_ioctlErr4ASSERT_VIOLATIONERROR_FUNCTION (38 of 39 remaining) [2021-11-01 11:14:05,949 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ppp_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION (37 of 39 remaining) [2021-11-01 11:14:05,949 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ppp_ioctlErr1ASSERT_VIOLATIONERROR_FUNCTION (36 of 39 remaining) [2021-11-01 11:14:05,949 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ppp_ioctlErr2ASSERT_VIOLATIONERROR_FUNCTION (35 of 39 remaining) [2021-11-01 11:14:05,949 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ppp_ioctlErr3ASSERT_VIOLATIONERROR_FUNCTION (34 of 39 remaining) [2021-11-01 11:14:05,950 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ppp_ioctlErr5ASSERT_VIOLATIONERROR_FUNCTION (33 of 39 remaining) [2021-11-01 11:14:05,950 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ppp_ioctlErr6ASSERT_VIOLATIONERROR_FUNCTION (32 of 39 remaining) [2021-11-01 11:14:05,950 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ppp_ioctlErr7ASSERT_VIOLATIONERROR_FUNCTION (31 of 39 remaining) [2021-11-01 11:14:05,950 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ppp_ioctlErr8ASSERT_VIOLATIONERROR_FUNCTION (30 of 39 remaining) [2021-11-01 11:14:05,952 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ppp_ioctlErr9ASSERT_VIOLATIONERROR_FUNCTION (29 of 39 remaining) [2021-11-01 11:14:05,952 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 39 remaining) [2021-11-01 11:14:05,952 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (27 of 39 remaining) [2021-11-01 11:14:05,952 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (26 of 39 remaining) [2021-11-01 11:14:05,952 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (25 of 39 remaining) [2021-11-01 11:14:05,952 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (24 of 39 remaining) [2021-11-01 11:14:05,953 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (23 of 39 remaining) [2021-11-01 11:14:05,953 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (22 of 39 remaining) [2021-11-01 11:14:05,953 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (21 of 39 remaining) [2021-11-01 11:14:05,953 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (20 of 39 remaining) [2021-11-01 11:14:05,953 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (19 of 39 remaining) [2021-11-01 11:14:05,953 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (18 of 39 remaining) [2021-11-01 11:14:05,954 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (17 of 39 remaining) [2021-11-01 11:14:05,954 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (16 of 39 remaining) [2021-11-01 11:14:05,954 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (15 of 39 remaining) [2021-11-01 11:14:05,954 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (14 of 39 remaining) [2021-11-01 11:14:05,955 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (13 of 39 remaining) [2021-11-01 11:14:05,955 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION (12 of 39 remaining) [2021-11-01 11:14:05,955 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION (11 of 39 remaining) [2021-11-01 11:14:05,955 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION (10 of 39 remaining) [2021-11-01 11:14:05,956 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION (9 of 39 remaining) [2021-11-01 11:14:05,956 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION (8 of 39 remaining) [2021-11-01 11:14:05,964 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION (7 of 39 remaining) [2021-11-01 11:14:05,964 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION (6 of 39 remaining) [2021-11-01 11:14:05,965 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION (5 of 39 remaining) [2021-11-01 11:14:05,965 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION (4 of 39 remaining) [2021-11-01 11:14:05,965 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION (3 of 39 remaining) [2021-11-01 11:14:05,965 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION (2 of 39 remaining) [2021-11-01 11:14:05,965 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION (1 of 39 remaining) [2021-11-01 11:14:05,965 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION (0 of 39 remaining) [2021-11-01 11:14:05,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-01 11:14:05,968 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-01 11:14:05,970 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-01 11:14:06,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.11 11:14:06 BoogieIcfgContainer [2021-11-01 11:14:06,130 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-01 11:14:06,130 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-01 11:14:06,130 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-01 11:14:06,131 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-01 11:14:06,131 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 11:13:01" (3/4) ... [2021-11-01 11:14:06,133 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-01 11:14:06,133 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-01 11:14:06,133 INFO L158 Benchmark]: Toolchain (without parser) took 70380.54ms. Allocated memory was 102.8MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 62.8MB in the beginning and 797.2MB in the end (delta: -734.5MB). Peak memory consumption was 905.4MB. Max. memory is 16.1GB. [2021-11-01 11:14:06,133 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 60.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-01 11:14:06,134 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1685.00ms. Allocated memory was 102.8MB in the beginning and 203.4MB in the end (delta: 100.7MB). Free memory was 62.6MB in the beginning and 111.5MB in the end (delta: -48.9MB). Peak memory consumption was 79.1MB. Max. memory is 16.1GB. [2021-11-01 11:14:06,134 INFO L158 Benchmark]: Boogie Procedure Inliner took 484.19ms. Allocated memory was 203.4MB in the beginning and 352.3MB in the end (delta: 148.9MB). Free memory was 111.5MB in the beginning and 238.5MB in the end (delta: -127.0MB). Peak memory consumption was 98.4MB. Max. memory is 16.1GB. [2021-11-01 11:14:06,134 INFO L158 Benchmark]: Boogie Preprocessor took 762.31ms. Allocated memory is still 352.3MB. Free memory was 238.5MB in the beginning and 180.7MB in the end (delta: 57.9MB). Peak memory consumption was 108.2MB. Max. memory is 16.1GB. [2021-11-01 11:14:06,134 INFO L158 Benchmark]: RCFGBuilder took 3027.33ms. Allocated memory was 352.3MB in the beginning and 786.4MB in the end (delta: 434.1MB). Free memory was 180.7MB in the beginning and 570.9MB in the end (delta: -390.3MB). Peak memory consumption was 395.1MB. Max. memory is 16.1GB. [2021-11-01 11:14:06,136 INFO L158 Benchmark]: TraceAbstraction took 64413.24ms. Allocated memory was 786.4MB in the beginning and 1.7GB in the end (delta: 956.3MB). Free memory was 569.9MB in the beginning and 797.2MB in the end (delta: -227.4MB). Peak memory consumption was 727.9MB. Max. memory is 16.1GB. [2021-11-01 11:14:06,136 INFO L158 Benchmark]: Witness Printer took 2.71ms. Allocated memory is still 1.7GB. Free memory is still 797.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-01 11:14:06,138 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 60.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1685.00ms. Allocated memory was 102.8MB in the beginning and 203.4MB in the end (delta: 100.7MB). Free memory was 62.6MB in the beginning and 111.5MB in the end (delta: -48.9MB). Peak memory consumption was 79.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 484.19ms. Allocated memory was 203.4MB in the beginning and 352.3MB in the end (delta: 148.9MB). Free memory was 111.5MB in the beginning and 238.5MB in the end (delta: -127.0MB). Peak memory consumption was 98.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 762.31ms. Allocated memory is still 352.3MB. Free memory was 238.5MB in the beginning and 180.7MB in the end (delta: 57.9MB). Peak memory consumption was 108.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3027.33ms. Allocated memory was 352.3MB in the beginning and 786.4MB in the end (delta: 434.1MB). Free memory was 180.7MB in the beginning and 570.9MB in the end (delta: -390.3MB). Peak memory consumption was 395.1MB. Max. memory is 16.1GB. * TraceAbstraction took 64413.24ms. Allocated memory was 786.4MB in the beginning and 1.7GB in the end (delta: 956.3MB). Free memory was 569.9MB in the beginning and 797.2MB in the end (delta: -227.4MB). Peak memory consumption was 727.9MB. Max. memory is 16.1GB. * Witness Printer took 2.71ms. Allocated memory is still 1.7GB. Free memory is still 797.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms 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: 64210.68ms, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 27.77ms, AutomataDifference: 62047.86ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 36.00ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7480 SdHoareTripleChecker+Valid, 60544.13ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7479 mSDsluCounter, 223 SdHoareTripleChecker+Invalid, 53514.06ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28773 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 46182 IncrementalHoareTripleChecker+Invalid, 46229 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 106 mSDtfsCounter, 46182 mSolverCounterSat, 94.54ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.52ms Time, 0.00ms 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, 0.00ms DumpTime, AutomataMinimizationStatistics: 561.00ms AutomataMinimizationTime, 3 MinimizatonAttempts, 112 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 38.35ms SsaConstructionTime, 716.26ms SatisfiabilityAnalysisTime, 275.62ms 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 [2021-11-01 11:14:06,361 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... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.seqcomp-bfd0d9a [2021-11-01 11:14:07,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-01 11:14:07,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-01 11:14:07,959 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-01 11:14:07,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-01 11:14:07,964 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-01 11:14:07,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-01 11:14:07,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-01 11:14:07,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-01 11:14:07,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-01 11:14:07,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-01 11:14:07,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-01 11:14:07,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-01 11:14:07,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-01 11:14:07,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-01 11:14:07,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-01 11:14:07,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-01 11:14:07,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-01 11:14:07,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-01 11:14:07,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-01 11:14:07,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-01 11:14:07,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-01 11:14:07,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-01 11:14:07,992 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-01 11:14:07,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-01 11:14:08,000 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-01 11:14:08,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-01 11:14:08,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-01 11:14:08,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-01 11:14:08,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-01 11:14:08,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-01 11:14:08,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-01 11:14:08,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-01 11:14:08,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-01 11:14:08,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-01 11:14:08,008 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-01 11:14:08,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-01 11:14:08,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-01 11:14:08,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-01 11:14:08,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-01 11:14:08,010 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-01 11:14:08,011 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-01 11:14:08,038 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-01 11:14:08,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-01 11:14:08,041 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-01 11:14:08,041 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-01 11:14:08,042 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-01 11:14:08,042 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-01 11:14:08,042 INFO L138 SettingsManager]: * Use SBE=true [2021-11-01 11:14:08,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-01 11:14:08,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-01 11:14:08,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-01 11:14:08,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-01 11:14:08,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-01 11:14:08,044 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-01 11:14:08,044 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-01 11:14:08,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-01 11:14:08,044 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-01 11:14:08,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-01 11:14:08,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-01 11:14:08,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-01 11:14:08,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-01 11:14:08,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-01 11:14:08,045 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-01 11:14:08,045 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-01 11:14:08,045 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-01 11:14:08,045 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-01 11:14:08,046 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-01 11:14:08,046 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-01 11:14:08,046 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-01 11:14:08,046 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-01 11:14:08,046 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-01 11:14:08,046 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-01 11:14:08,046 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70890f3d08defb801ef42dfcccb814d43a0397723b39cd10a6795cae91719bfb [2021-11-01 11:14:08,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-01 11:14:08,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-01 11:14:08,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-01 11:14:08,287 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-01 11:14:08,288 INFO L275 PluginConnector]: CDTParser initialized [2021-11-01 11:14:08,288 INFO L432 ainManager$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 [2021-11-01 11:14:08,324 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98c3d448a/9738080102eb461c8a20c7cbe04ffe9c/FLAGdd211a5d6 [2021-11-01 11:14:08,891 INFO L306 CDTParser]: Found 1 translation units. [2021-11-01 11:14:08,892 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 [2021-11-01 11:14:08,931 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98c3d448a/9738080102eb461c8a20c7cbe04ffe9c/FLAGdd211a5d6 [2021-11-01 11:14:09,054 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98c3d448a/9738080102eb461c8a20c7cbe04ffe9c [2021-11-01 11:14:09,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-01 11:14:09,058 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-01 11:14:09,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-01 11:14:09,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-01 11:14:09,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-01 11:14:09,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 11:14:09" (1/1) ... [2021-11-01 11:14:09,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d9b0de5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:14:09, skipping insertion in model container [2021-11-01 11:14:09,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 11:14:09" (1/1) ... [2021-11-01 11:14:09,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-01 11:14:09,174 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-01 11:14:10,401 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] [2021-11-01 11:14:10,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-01 11:14:10,475 INFO L203 MainTranslator]: Completed pre-run [2021-11-01 11:14:10,743 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] [2021-11-01 11:14:10,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-01 11:14:10,952 INFO L208 MainTranslator]: Completed translation [2021-11-01 11:14:10,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:14:10 WrapperNode [2021-11-01 11:14:10,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-01 11:14:10,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-01 11:14:10,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-01 11:14:10,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-01 11:14:10,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:14:10" (1/1) ... [2021-11-01 11:14:11,034 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:14:10" (1/1) ... [2021-11-01 11:14:11,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-01 11:14:11,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-01 11:14:11,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-01 11:14:11,447 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-01 11:14:11,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:14:10" (1/1) ... [2021-11-01 11:14:11,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:14:10" (1/1) ... [2021-11-01 11:14:11,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:14:10" (1/1) ... [2021-11-01 11:14:11,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:14:10" (1/1) ... [2021-11-01 11:14:11,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:14:10" (1/1) ... [2021-11-01 11:14:11,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:14:10" (1/1) ... [2021-11-01 11:14:11,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:14:10" (1/1) ... [2021-11-01 11:14:12,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-01 11:14:12,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-01 11:14:12,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-01 11:14:12,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-01 11:14:12,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:14:10" (1/1) ... [2021-11-01 11:14:12,117 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-01 11:14:12,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-01 11:14:12,134 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) [2021-11-01 11:14:12,143 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 [2021-11-01 11:14:12,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-01 11:14:12,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-01 11:14:12,225 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-01 11:14:12,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-01 11:14:12,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-01 11:14:12,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-01 11:14:12,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-01 11:14:12,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-01 11:14:12,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-01 11:14:12,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-01 11:14:12,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-01 11:14:12,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-01 11:14:12,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-01 11:14:12,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-01 11:14:12,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-01 11:14:12,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-01 11:14:12,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-01 11:14:12,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-01 11:14:12,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-01 11:14:12,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-01 11:14:12,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-01 11:14:12,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-01 11:14:12,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-01 11:14:12,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-01 11:14:12,227 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-01 11:14:12,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-01 11:14:12,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-01 11:14:12,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-01 11:14:12,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-01 11:14:12,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-01 11:14:12,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-01 11:14:12,740 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-01 11:14:12,858 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-01 11:14:12,868 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-01 11:14:12,872 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-01 11:14:12,971 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-01 11:14:15,046 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2438: assume false; [2021-11-01 11:14:15,047 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2439: assume !false; [2021-11-01 11:14:15,047 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2403: assume !false; [2021-11-01 11:14:15,047 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2402: assume false; [2021-11-01 11:14:15,047 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2409: assume !false; [2021-11-01 11:14:15,047 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2408: assume false; [2021-11-01 11:14:15,047 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2335: assume !false; [2021-11-01 11:14:15,048 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2334: assume false; [2021-11-01 11:14:15,048 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2339: assume !false; [2021-11-01 11:14:15,048 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2338: assume false; [2021-11-01 11:14:15,048 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2326: assume !false; [2021-11-01 11:14:15,048 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2325: assume false; [2021-11-01 11:14:15,048 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##99: assume false; [2021-11-01 11:14:15,048 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##71: assume !false; [2021-11-01 11:14:15,049 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##70: assume false; [2021-11-01 11:14:15,049 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##76: assume !false; [2021-11-01 11:14:15,049 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume false; [2021-11-01 11:14:15,049 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume !false; [2021-11-01 11:14:15,049 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##60: assume false; [2021-11-01 11:14:15,049 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##65: assume false; [2021-11-01 11:14:15,049 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##64: assume !true; [2021-11-01 11:14:15,049 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##69: assume !true; [2021-11-01 11:14:15,050 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##66: assume !false; [2021-11-01 11:14:15,050 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##50: assume !false; [2021-11-01 11:14:15,050 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##57: assume !false; [2021-11-01 11:14:15,050 INFO L757 $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; [2021-11-01 11:14:15,050 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##49: assume false; [2021-11-01 11:14:15,050 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##34: assume !false; [2021-11-01 11:14:15,050 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##33: assume false; [2021-11-01 11:14:15,051 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2993: assume !false; [2021-11-01 11:14:15,051 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2992: assume false; [2021-11-01 11:14:15,051 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2999: assume !false; [2021-11-01 11:14:15,051 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2998: assume false; [2021-11-01 11:14:15,051 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2986: assume false; [2021-11-01 11:14:15,051 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2987: assume !false; [2021-11-01 11:14:15,051 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2829: assume !false; [2021-11-01 11:14:15,051 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2828: assume false; [2021-11-01 11:14:15,052 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2755: assume false; [2021-11-01 11:14:15,052 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2756: assume !false; [2021-11-01 11:14:15,052 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2759: assume false; [2021-11-01 11:14:15,052 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2760: assume !false; [2021-11-01 11:14:15,052 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2766: assume !false; [2021-11-01 11:14:15,052 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2765: assume false; [2021-11-01 11:14:15,052 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2609: assume false; [2021-11-01 11:14:15,052 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2610: assume !false; [2021-11-01 11:14:15,053 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2614: assume !false; [2021-11-01 11:14:15,053 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2613: assume false; [2021-11-01 11:14:15,053 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##100: assume !false; [2021-11-01 11:14:15,053 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##107: assume !false; [2021-11-01 11:14:15,053 INFO L757 $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; [2021-11-01 11:14:15,053 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##111: assume !false; [2021-11-01 11:14:15,053 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##110: assume false; [2021-11-01 11:14:15,053 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##115: assume false; [2021-11-01 11:14:15,054 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##114: assume !true; [2021-11-01 11:14:15,054 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##119: assume !true; [2021-11-01 11:14:15,054 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##116: assume !false; [2021-11-01 11:14:15,054 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##121: assume !false; [2021-11-01 11:14:15,054 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##120: assume false; [2021-11-01 11:14:15,054 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##126: assume !false; [2021-11-01 11:14:15,054 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##125: assume false; [2021-11-01 11:14:15,054 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3006: assume false; [2021-11-01 11:14:15,055 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3007: assume !false; [2021-11-01 11:14:15,055 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4158: assume false; [2021-11-01 11:14:15,055 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4159: assume !false; [2021-11-01 11:14:15,055 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3110: assume !false; [2021-11-01 11:14:15,056 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3109: assume false; [2021-11-01 11:14:15,056 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-1: assume !true; [2021-11-01 11:14:15,057 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-1: goto; [2021-11-01 11:14:15,057 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-4: assume !true; [2021-11-01 11:14:15,057 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-4: goto; [2021-11-01 11:14:15,057 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-1: call __bad_percpu_size(); [2021-11-01 11:14:15,057 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-2: call __bad_percpu_size(); [2021-11-01 11:14:15,057 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-6: call __bad_percpu_size(); [2021-11-01 11:14:15,057 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-3: call __bad_percpu_size(); [2021-11-01 11:14:15,057 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-7: call __bad_percpu_size(); [2021-11-01 11:14:15,058 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-8: call __bad_percpu_size(); [2021-11-01 11:14:15,058 INFO L757 $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; [2021-11-01 11:14:15,058 INFO L757 $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; [2021-11-01 11:14:15,058 INFO L757 $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; [2021-11-01 11:14:15,058 INFO L757 $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; [2021-11-01 11:14:15,058 INFO L757 $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; [2021-11-01 11:14:15,058 INFO L757 $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; [2021-11-01 11:14:15,058 INFO L757 $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; [2021-11-01 11:14:15,059 INFO L757 $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; [2021-11-01 11:14:15,059 INFO L757 $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; [2021-11-01 11:14:15,059 INFO L757 $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; [2021-11-01 11:14:15,059 INFO L757 $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; [2021-11-01 11:14:15,059 INFO L757 $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; [2021-11-01 11:14:15,080 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-01 11:14:15,080 INFO L299 CfgBuilder]: Removed 5484 assume(true) statements. [2021-11-01 11:14:15,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 11:14:15 BoogieIcfgContainer [2021-11-01 11:14:15,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-01 11:14:15,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-01 11:14:15,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-01 11:14:15,088 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-01 11:14:15,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 11:14:09" (1/3) ... [2021-11-01 11:14:15,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f741a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 11:14:15, skipping insertion in model container [2021-11-01 11:14:15,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:14:10" (2/3) ... [2021-11-01 11:14:15,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f741a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 11:14:15, skipping insertion in model container [2021-11-01 11:14:15,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 11:14:15" (3/3) ... [2021-11-01 11:14:15,090 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2021-11-01 11:14:15,093 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-01 11:14:15,094 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 39 error locations. [2021-11-01 11:14:15,133 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-01 11:14:15,137 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 [2021-11-01 11:14:15,138 INFO L340 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2021-11-01 11:14:15,184 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) [2021-11-01 11:14:15,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-01 11:14:15,188 INFO L506 BasicCegarLoop]: Found error trace [2021-11-01 11:14:15,189 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-01 11:14:15,189 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)] === [2021-11-01 11:14:15,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-01 11:14:15,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1393895239, now seen corresponding path program 1 times [2021-11-01 11:14:15,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-01 11:14:15,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1526620203] [2021-11-01 11:14:15,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-01 11:14:15,203 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-01 11:14:15,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-01 11:14:15,220 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) [2021-11-01 11:14:15,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-01 11:14:16,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-01 11:14:16,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-01 11:14:16,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-01 11:14:16,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-01 11:14:16,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-01 11:14:16,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-01 11:14:16,153 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-01 11:14:16,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1526620203] [2021-11-01 11:14:16,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1526620203] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-01 11:14:16,153 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-01 11:14:16,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-01 11:14:16,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137973266] [2021-11-01 11:14:16,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-01 11:14:16,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-01 11:14:16,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-01 11:14:16,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-01 11:14:16,212 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) [2021-11-01 11:14:18,322 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:14:21,762 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:14:24,155 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:14:26,348 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:14:29,861 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:14:32,101 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:14:35,029 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:14:37,280 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:14:39,886 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:14:42,321 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:14:49,630 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:14:52,616 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:14:55,487 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:14:58,280 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:15:00,765 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:15:02,798 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:15:07,268 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:15:09,857 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:15:12,018 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:15:15,003 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:15:19,761 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:15:22,558 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:15:25,017 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:15:28,372 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:15:30,491 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:15:32,856 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:15:38,762 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:15:42,200 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:15:44,567 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:15:47,073 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:15:54,067 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:15:56,749 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:15:59,124 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:16:02,460 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:16:09,813 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:16:12,753 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:16:18,586 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:16:21,140 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:16:24,367 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:16:26,600 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:16:28,760 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:16:32,739 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:16:34,926 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:16:39,519 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:16:41,690 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:16:44,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-01 11:16:44,077 INFO L93 Difference]: Finished difference Result 12308 states and 17213 transitions. [2021-11-01 11:16:44,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-01 11:16:44,079 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 [2021-11-01 11:16:44,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-01 11:16:44,125 INFO L225 Difference]: With dead ends: 12308 [2021-11-01 11:16:44,125 INFO L226 Difference]: Without dead ends: 8004 [2021-11-01 11:16:44,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.10ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-01 11:16:44,142 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 5493 mSDsluCounter, 5433 mSDsCounter, 0 mSdLazyCounter, 11186 mSolverCounterSat, 39 mSolverCounterUnsat, 44 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 139942.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5493 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 11269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 61.48ms SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 11186 IncrementalHoareTripleChecker+Invalid, 44 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 146748.51ms IncrementalHoareTripleChecker+Time [2021-11-01 11:16:44,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5493 Valid, 168 Invalid, 11269 Unknown, 0 Unchecked, 61.48ms Time], IncrementalHoareTripleChecker [39 Valid, 11186 Invalid, 44 Unknown, 0 Unchecked, 146748.51ms Time] [2021-11-01 11:16:44,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8004 states. [2021-11-01 11:16:44,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8004 to 7928. [2021-11-01 11:16:44,517 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) [2021-11-01 11:16:44,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7928 states to 7928 states and 10619 transitions. [2021-11-01 11:16:44,539 INFO L78 Accepts]: Start accepts. Automaton has 7928 states and 10619 transitions. Word has length 10 [2021-11-01 11:16:44,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-01 11:16:44,539 INFO L470 AbstractCegarLoop]: Abstraction has 7928 states and 10619 transitions. [2021-11-01 11:16:44,539 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) [2021-11-01 11:16:44,540 INFO L276 IsEmpty]: Start isEmpty. Operand 7928 states and 10619 transitions. [2021-11-01 11:16:44,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-01 11:16:44,547 INFO L506 BasicCegarLoop]: Found error trace [2021-11-01 11:16:44,547 INFO L514 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] [2021-11-01 11:16:44,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-01 11:16:44,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-01 11:16:44,764 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)] === [2021-11-01 11:16:44,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-01 11:16:44,765 INFO L85 PathProgramCache]: Analyzing trace with hash -473324972, now seen corresponding path program 1 times [2021-11-01 11:16:44,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-01 11:16:44,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152982125] [2021-11-01 11:16:44,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-01 11:16:44,766 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-01 11:16:44,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-01 11:16:44,770 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) [2021-11-01 11:16:44,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-01 11:16:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-01 11:16:45,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-01 11:16:45,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-01 11:16:45,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-01 11:16:45,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-01 11:16:46,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-01 11:16:46,026 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-01 11:16:46,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152982125] [2021-11-01 11:16:46,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152982125] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-01 11:16:46,027 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-01 11:16:46,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-01 11:16:46,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421537028] [2021-11-01 11:16:46,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-01 11:16:46,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-01 11:16:46,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-01 11:16:46,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-01 11:16:46,028 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) [2021-11-01 11:16:48,128 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:16:54,615 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:16:58,545 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:17:01,463 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:17:03,934 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:17:09,677 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:17:12,197 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:17:18,735 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:17:21,355 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:17:24,525 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:17:27,257 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:17:38,884 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:17:41,422 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:17:44,982 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:17:48,355 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:17:51,383 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:17:53,435 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:18:00,515 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:18:03,505 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:18:05,545 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:18:07,562 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:18:09,593 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:18:12,028 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:18:15,723 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:18:23,275 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:18:27,338 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:18:30,244 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:18:35,792 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:18:38,041 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:18:40,532 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:18:48,173 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:18:52,866 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:18:55,030 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:18:57,456 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:19:05,500 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:19:09,434 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:19:12,276 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:19:14,390 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:19:18,709 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:19:24,471 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:19:28,232 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:19:33,027 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:19:36,515 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:19:40,552 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:19:42,707 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:19:47,164 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:19:49,271 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:19:52,674 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:19:54,818 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:19:55,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-01 11:19:55,539 INFO L93 Difference]: Finished difference Result 15838 states and 21216 transitions. [2021-11-01 11:19:55,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-01 11:19:55,540 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 [2021-11-01 11:19:55,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-01 11:19:55,560 INFO L225 Difference]: With dead ends: 15838 [2021-11-01 11:19:55,560 INFO L226 Difference]: Without dead ends: 7928 [2021-11-01 11:19:55,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 74.01ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-01 11:19:55,569 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4 mSDsluCounter, 16018 mSDsCounter, 0 mSdLazyCounter, 21374 mSolverCounterSat, 1 mSolverCounterUnsat, 47 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 180555.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 21422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 101.09ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21374 IncrementalHoareTripleChecker+Invalid, 47 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 188579.94ms IncrementalHoareTripleChecker+Time [2021-11-01 11:19:55,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 0 Invalid, 21422 Unknown, 0 Unchecked, 101.09ms Time], IncrementalHoareTripleChecker [1 Valid, 21374 Invalid, 47 Unknown, 0 Unchecked, 188579.94ms Time] [2021-11-01 11:19:55,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7928 states. [2021-11-01 11:19:55,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7928 to 7928. [2021-11-01 11:19:55,664 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) [2021-11-01 11:19:55,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7928 states to 7928 states and 10617 transitions. [2021-11-01 11:19:55,674 INFO L78 Accepts]: Start accepts. Automaton has 7928 states and 10617 transitions. Word has length 35 [2021-11-01 11:19:55,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-01 11:19:55,675 INFO L470 AbstractCegarLoop]: Abstraction has 7928 states and 10617 transitions. [2021-11-01 11:19:55,675 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) [2021-11-01 11:19:55,675 INFO L276 IsEmpty]: Start isEmpty. Operand 7928 states and 10617 transitions. [2021-11-01 11:19:55,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-01 11:19:55,676 INFO L506 BasicCegarLoop]: Found error trace [2021-11-01 11:19:55,676 INFO L514 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] [2021-11-01 11:19:55,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-01 11:19:55,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-01 11:19:55,894 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)] === [2021-11-01 11:19:55,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-01 11:19:55,894 INFO L85 PathProgramCache]: Analyzing trace with hash -839366508, now seen corresponding path program 1 times [2021-11-01 11:19:55,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-01 11:19:55,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1086297003] [2021-11-01 11:19:55,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-01 11:19:55,901 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-01 11:19:55,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-01 11:19:55,902 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) [2021-11-01 11:19:55,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-01 11:19:56,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-01 11:19:56,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-01 11:19:56,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-01 11:19:57,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-01 11:19:57,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-01 11:19:57,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-01 11:19:57,152 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-01 11:19:57,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1086297003] [2021-11-01 11:19:57,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1086297003] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-01 11:19:57,153 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-01 11:19:57,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-01 11:19:57,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257316946] [2021-11-01 11:19:57,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-01 11:19:57,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-01 11:19:57,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-01 11:19:57,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-01 11:19:57,154 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) [2021-11-01 11:19:59,243 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:20:02,522 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:20:07,191 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:20:09,611 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:20:13,606 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:20:16,973 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:20:20,099 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:20:22,639 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:20:29,550 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:20:32,095 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:20:42,050 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:20:44,093 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:20:50,255 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:20:52,833 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:20:55,978 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:20:58,872 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:21:04,901 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:21:07,420 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:21:09,515 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:21:12,057 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:21:14,391 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:21:18,577 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:21:26,490 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:21:29,099 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:21:31,073 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:21:33,876 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:21:36,287 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:21:38,494 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:21:41,000 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:21:51,911 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:21:54,793 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:21:56,947 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:21:59,544 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:22:10,850 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:22:15,233 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:22:24,588 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:22:27,302 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:22:29,385 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:22:33,664 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:22:42,082 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:22:44,335 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:22:50,752 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:22:53,243 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:22:55,312 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:22:58,272 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-01 11:23:04,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-01 11:23:04,919 INFO L93 Difference]: Finished difference Result 25141 states and 33640 transitions. [2021-11-01 11:23:04,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-01 11:23:04,919 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 [2021-11-01 11:23:04,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-01 11:23:04,967 INFO L225 Difference]: With dead ends: 25141 [2021-11-01 11:23:04,969 INFO L226 Difference]: Without dead ends: 17234 [2021-11-01 11:23:04,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.13ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-01 11:23:04,997 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 10173 mSDsluCounter, 10208 mSDsCounter, 0 mSdLazyCounter, 15873 mSolverCounterSat, 15 mSolverCounterUnsat, 44 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 175660.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10173 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 15932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 111.99ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 15873 IncrementalHoareTripleChecker+Invalid, 44 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 186291.26ms IncrementalHoareTripleChecker+Time [2021-11-01 11:23:04,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10173 Valid, 0 Invalid, 15932 Unknown, 0 Unchecked, 111.99ms Time], IncrementalHoareTripleChecker [15 Valid, 15873 Invalid, 44 Unknown, 0 Unchecked, 186291.26ms Time] [2021-11-01 11:23:05,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17234 states. [2021-11-01 11:23:05,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17234 to 15295. [2021-11-01 11:23:05,345 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) [2021-11-01 11:23:05,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15295 states to 15295 states and 20510 transitions. [2021-11-01 11:23:05,371 INFO L78 Accepts]: Start accepts. Automaton has 15295 states and 20510 transitions. Word has length 42 [2021-11-01 11:23:05,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-01 11:23:05,371 INFO L470 AbstractCegarLoop]: Abstraction has 15295 states and 20510 transitions. [2021-11-01 11:23:05,371 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) [2021-11-01 11:23:05,372 INFO L276 IsEmpty]: Start isEmpty. Operand 15295 states and 20510 transitions. [2021-11-01 11:23:05,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-01 11:23:05,376 INFO L506 BasicCegarLoop]: Found error trace [2021-11-01 11:23:05,376 INFO L514 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] [2021-11-01 11:23:05,403 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-01 11:23:05,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-01 11:23:05,588 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)] === [2021-11-01 11:23:05,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-01 11:23:05,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1381473804, now seen corresponding path program 1 times [2021-11-01 11:23:05,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-01 11:23:05,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1922110998] [2021-11-01 11:23:05,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-01 11:23:05,589 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-01 11:23:05,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-01 11:23:05,591 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) [2021-11-01 11:23:05,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-01 11:24:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-01 11:24:37,176 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-01 11:26:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-01 11:26:01,150 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-01 11:26:01,150 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-01 11:26:01,151 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION (38 of 39 remaining) [2021-11-01 11:26:01,152 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (37 of 39 remaining) [2021-11-01 11:26:01,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (36 of 39 remaining) [2021-11-01 11:26:01,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (35 of 39 remaining) [2021-11-01 11:26:01,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (34 of 39 remaining) [2021-11-01 11:26:01,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (33 of 39 remaining) [2021-11-01 11:26:01,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (32 of 39 remaining) [2021-11-01 11:26:01,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (31 of 39 remaining) [2021-11-01 11:26:01,154 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (30 of 39 remaining) [2021-11-01 11:26:01,154 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (29 of 39 remaining) [2021-11-01 11:26:01,154 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (28 of 39 remaining) [2021-11-01 11:26:01,154 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (27 of 39 remaining) [2021-11-01 11:26:01,154 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (26 of 39 remaining) [2021-11-01 11:26:01,154 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (25 of 39 remaining) [2021-11-01 11:26:01,154 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (24 of 39 remaining) [2021-11-01 11:26:01,155 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (23 of 39 remaining) [2021-11-01 11:26:01,155 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (22 of 39 remaining) [2021-11-01 11:26:01,155 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION (21 of 39 remaining) [2021-11-01 11:26:01,155 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION (20 of 39 remaining) [2021-11-01 11:26:01,155 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION (19 of 39 remaining) [2021-11-01 11:26:01,155 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION (18 of 39 remaining) [2021-11-01 11:26:01,156 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION (17 of 39 remaining) [2021-11-01 11:26:01,156 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION (16 of 39 remaining) [2021-11-01 11:26:01,156 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION (15 of 39 remaining) [2021-11-01 11:26:01,156 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION (14 of 39 remaining) [2021-11-01 11:26:01,156 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION (13 of 39 remaining) [2021-11-01 11:26:01,156 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION (12 of 39 remaining) [2021-11-01 11:26:01,157 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION (11 of 39 remaining) [2021-11-01 11:26:01,157 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION (10 of 39 remaining) [2021-11-01 11:26:01,157 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION (9 of 39 remaining) [2021-11-01 11:26:01,157 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION (8 of 39 remaining) [2021-11-01 11:26:01,157 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION (7 of 39 remaining) [2021-11-01 11:26:01,158 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION (6 of 39 remaining) [2021-11-01 11:26:01,158 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION (5 of 39 remaining) [2021-11-01 11:26:01,158 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION (4 of 39 remaining) [2021-11-01 11:26:01,159 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION (3 of 39 remaining) [2021-11-01 11:26:01,159 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION (2 of 39 remaining) [2021-11-01 11:26:01,159 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION (1 of 39 remaining) [2021-11-01 11:26:01,159 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION (0 of 39 remaining) [2021-11-01 11:26:01,288 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-01 11:26:01,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-01 11:26:01,386 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-01 11:26:01,388 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-01 11:26:01,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.11 11:26:01 BoogieIcfgContainer [2021-11-01 11:26:01,542 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-01 11:26:01,543 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-01 11:26:01,543 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-01 11:26:01,543 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-01 11:26:01,543 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 11:14:15" (3/4) ... [2021-11-01 11:26:01,545 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-01 11:26:01,545 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-01 11:26:01,545 INFO L158 Benchmark]: Toolchain (without parser) took 712487.49ms. Allocated memory was 60.8MB in the beginning and 2.3GB in the end (delta: 2.3GB). Free memory was 28.7MB in the beginning and 2.1GB in the end (delta: -2.1GB). Peak memory consumption was 187.2MB. Max. memory is 16.1GB. [2021-11-01 11:26:01,546 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 60.8MB. Free memory was 42.6MB in the beginning and 42.6MB in the end (delta: 92.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-01 11:26:01,546 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1895.78ms. Allocated memory was 60.8MB in the beginning and 125.8MB in the end (delta: 65.0MB). Free memory was 28.5MB in the beginning and 60.9MB in the end (delta: -32.4MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. [2021-11-01 11:26:01,546 INFO L158 Benchmark]: Boogie Procedure Inliner took 491.46ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 60.9MB in the beginning and 48.9MB in the end (delta: 12.0MB). Peak memory consumption was 74.1MB. Max. memory is 16.1GB. [2021-11-01 11:26:01,546 INFO L158 Benchmark]: Boogie Preprocessor took 663.89ms. Allocated memory was 151.0MB in the beginning and 390.1MB in the end (delta: 239.1MB). Free memory was 48.9MB in the beginning and 241.7MB in the end (delta: -192.7MB). Peak memory consumption was 127.3MB. Max. memory is 16.1GB. [2021-11-01 11:26:01,546 INFO L158 Benchmark]: RCFGBuilder took 2972.29ms. Allocated memory was 390.1MB in the beginning and 1.2GB in the end (delta: 780.1MB). Free memory was 241.5MB in the beginning and 525.3MB in the end (delta: -283.7MB). Peak memory consumption was 498.0MB. Max. memory is 16.1GB. [2021-11-01 11:26:01,547 INFO L158 Benchmark]: TraceAbstraction took 706456.81ms. Allocated memory was 1.2GB in the beginning and 2.3GB in the end (delta: 1.2GB). Free memory was 525.3MB in the beginning and 2.1GB in the end (delta: -1.6GB). Peak memory consumption was 473.6MB. Max. memory is 16.1GB. [2021-11-01 11:26:01,547 INFO L158 Benchmark]: Witness Printer took 2.49ms. Allocated memory is still 2.3GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-01 11:26:01,548 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 60.8MB. Free memory was 42.6MB in the beginning and 42.6MB in the end (delta: 92.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1895.78ms. Allocated memory was 60.8MB in the beginning and 125.8MB in the end (delta: 65.0MB). Free memory was 28.5MB in the beginning and 60.9MB in the end (delta: -32.4MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 491.46ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 60.9MB in the beginning and 48.9MB in the end (delta: 12.0MB). Peak memory consumption was 74.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 663.89ms. Allocated memory was 151.0MB in the beginning and 390.1MB in the end (delta: 239.1MB). Free memory was 48.9MB in the beginning and 241.7MB in the end (delta: -192.7MB). Peak memory consumption was 127.3MB. Max. memory is 16.1GB. * RCFGBuilder took 2972.29ms. Allocated memory was 390.1MB in the beginning and 1.2GB in the end (delta: 780.1MB). Free memory was 241.5MB in the beginning and 525.3MB in the end (delta: -283.7MB). Peak memory consumption was 498.0MB. Max. memory is 16.1GB. * TraceAbstraction took 706456.81ms. Allocated memory was 1.2GB in the beginning and 2.3GB in the end (delta: 1.2GB). Free memory was 525.3MB in the beginning and 2.1GB in the end (delta: -1.6GB). Peak memory consumption was 473.6MB. Max. memory is 16.1GB. * Witness Printer took 2.49ms. Allocated memory is still 2.3GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms 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={4611633220360796590:0}, compressor_list={3458606184144042303:0}, compressor_list_lock={4600409427172915218:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={3384991664459217388:0}, npindex_to_proto={6908467952316572090:0}, ppp_class={0:0}, ppp_device_fops={3458746921633413437:0}, ppp_mutex={6914133735194490897:0}, ppp_net_id={-4622962609681860514:0}, ppp_net_ops={-8081727123502407270:0}, ppp_netdev_ops={-5764625115222378179:0}, ppp_unit_count={2314867800654487053:0}] [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={4611633220360796590:0}, compressor_list={3458606184144042303:0}, compressor_list_lock={4600409427172915218:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={3384991664459217388:0}, npindex_to_proto={6908467952316572090:0}, ppp_class={0:0}, ppp_device_fops={3458746921633413437:0}, ppp_mutex={6914133735194490897:0}, ppp_net_id={-4622962609681860514:0}, ppp_net_ops={-8081727123502407270:0}, ppp_netdev_ops={-5764625115222378179:0}, ppp_unit_count={2314867800654487053:0}] [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={4611633220360796590:0}, compressor_list={3458606184144042303:0}, compressor_list_lock={4600409427172915218:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={3384991664459217388:0}, npindex_to_proto={6908467952316572090:0}, ppp_class={0:0}, ppp_device_fops={3458746921633413437:0}, ppp_mutex={6914133735194490897:0}, ppp_net_id={-4622962609681860514:0}, ppp_net_ops={-8081727123502407270:0}, ppp_netdev_ops={-5764625115222378179:0}, ppp_unit_count={2314867800654487053:0}] [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={4611633220360796590:0}, compressor_list={3458606184144042303:0}, compressor_list_lock={4600409427172915218:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={3384991664459217388:0}, npindex_to_proto={6908467952316572090:0}, ppp_class={0:0}, ppp_device_fops={3458746921633413437:0}, ppp_mutex={6914133735194490897:0}, ppp_net_id={-4622962609681860514:0}, ppp_net_ops={-8081727123502407270:0}, ppp_netdev_ops={-5764625115222378179:0}, ppp_unit_count={2314867800654487053:0}] [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={4611633220360796590:0}, compressor_list={3458606184144042303:0}, compressor_list_lock={4600409427172915218:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={3384991664459217388:0}, npindex_to_proto={6908467952316572090:0}, ppp_class={0:0}, ppp_device_fops={3458746921633413437:0}, ppp_mutex={6914133735194490897:0}, ppp_net_id={-4622962609681860514:0}, ppp_net_ops={-8081727123502407270:0}, ppp_netdev_ops={-5764625115222378179:0}, ppp_unit_count={2314867800654487053:0}] [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={4611633220360796590:0}, compressor_list={3458606184144042303:0}, compressor_list_lock={4600409427172915218:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={3384991664459217388:0}, npindex_to_proto={6908467952316572090:0}, ppp_class={0:0}, ppp_device_fops={3458746921633413437:0}, ppp_mutex={6914133735194490897:0}, ppp_net_id={-4622962609681860514:0}, ppp_net_ops={-8081727123502407270:0}, ppp_netdev_ops={-5764625115222378179:0}, ppp_unit_count={2314867800654487053:0}] [L10650] tmp = ppp_init() [L10652] COND FALSE !(tmp != 0) VAL [__this_module={0:0}, channel_count={4611633220360796590:0}, compressor_list={3458606184144042303:0}, compressor_list_lock={4600409427172915218:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={3384991664459217388:0}, npindex_to_proto={6908467952316572090:0}, ppp_class={0:0}, ppp_device_fops={3458746921633413437:0}, ppp_mutex={6914133735194490897:0}, ppp_net_id={-4622962609681860514:0}, ppp_net_ops={-8081727123502407270:0}, ppp_netdev_ops={-5764625115222378179:0}, ppp_unit_count={2314867800654487053:0}] [L10784] tmp___1 = __VERIFIER_nondet_int() [L10786] COND TRUE tmp___1 != 0 VAL [__this_module={0:0}, channel_count={4611633220360796590:0}, compressor_list={3458606184144042303:0}, compressor_list_lock={4600409427172915218:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={3384991664459217388:0}, npindex_to_proto={6908467952316572090:0}, ppp_class={0:0}, ppp_device_fops={3458746921633413437:0}, ppp_mutex={6914133735194490897:0}, ppp_net_id={-4622962609681860514:0}, ppp_net_ops={-8081727123502407270:0}, ppp_netdev_ops={-5764625115222378179:0}, ppp_unit_count={2314867800654487053:0}] [L10659] tmp___0 = __VERIFIER_nondet_int() [L10661] COND FALSE !(tmp___0 == 0) VAL [__this_module={0:0}, channel_count={4611633220360796590:0}, compressor_list={3458606184144042303:0}, compressor_list_lock={4600409427172915218:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={3384991664459217388:0}, npindex_to_proto={6908467952316572090:0}, ppp_class={0:0}, ppp_device_fops={3458746921633413437:0}, ppp_mutex={6914133735194490897:0}, ppp_net_id={-4622962609681860514:0}, ppp_net_ops={-8081727123502407270:0}, ppp_netdev_ops={-5764625115222378179:0}, ppp_unit_count={2314867800654487053:0}] [L10664] COND FALSE !(tmp___0 == 1) VAL [__this_module={0:0}, channel_count={4611633220360796590:0}, compressor_list={3458606184144042303:0}, compressor_list_lock={4600409427172915218:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={3384991664459217388:0}, npindex_to_proto={6908467952316572090:0}, ppp_class={0:0}, ppp_device_fops={3458746921633413437:0}, ppp_mutex={6914133735194490897:0}, ppp_net_id={-4622962609681860514:0}, ppp_net_ops={-8081727123502407270:0}, ppp_netdev_ops={-5764625115222378179:0}, ppp_unit_count={2314867800654487053:0}] [L10667] COND FALSE !(tmp___0 == 2) VAL [__this_module={0:0}, channel_count={4611633220360796590:0}, compressor_list={3458606184144042303:0}, compressor_list_lock={4600409427172915218:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={3384991664459217388:0}, npindex_to_proto={6908467952316572090:0}, ppp_class={0:0}, ppp_device_fops={3458746921633413437:0}, ppp_mutex={6914133735194490897:0}, ppp_net_id={-4622962609681860514:0}, ppp_net_ops={-8081727123502407270:0}, ppp_netdev_ops={-5764625115222378179:0}, ppp_unit_count={2314867800654487053:0}] [L10670] COND FALSE !(tmp___0 == 3) VAL [__this_module={0:0}, channel_count={4611633220360796590:0}, compressor_list={3458606184144042303:0}, compressor_list_lock={4600409427172915218:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={3384991664459217388:0}, npindex_to_proto={6908467952316572090:0}, ppp_class={0:0}, ppp_device_fops={3458746921633413437:0}, ppp_mutex={6914133735194490897:0}, ppp_net_id={-4622962609681860514:0}, ppp_net_ops={-8081727123502407270:0}, ppp_netdev_ops={-5764625115222378179:0}, ppp_unit_count={2314867800654487053:0}] [L10673] COND FALSE !(tmp___0 == 4) VAL [__this_module={0:0}, channel_count={4611633220360796590:0}, compressor_list={3458606184144042303:0}, compressor_list_lock={4600409427172915218:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={3384991664459217388:0}, npindex_to_proto={6908467952316572090:0}, ppp_class={0:0}, ppp_device_fops={3458746921633413437:0}, ppp_mutex={6914133735194490897:0}, ppp_net_id={-4622962609681860514:0}, ppp_net_ops={-8081727123502407270:0}, ppp_netdev_ops={-5764625115222378179:0}, ppp_unit_count={2314867800654487053:0}] [L10676] COND TRUE tmp___0 == 5 VAL [__this_module={0:0}, channel_count={4611633220360796590:0}, compressor_list={3458606184144042303:0}, compressor_list_lock={4600409427172915218:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={3384991664459217388:0}, npindex_to_proto={6908467952316572090:0}, ppp_class={0:0}, ppp_device_fops={3458746921633413437:0}, ppp_mutex={6914133735194490897:0}, ppp_net_id={-4622962609681860514:0}, ppp_net_ops={-8081727123502407270:0}, ppp_netdev_ops={-5764625115222378179:0}, ppp_unit_count={2314867800654487053:0}] [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={4611633220360796590:0}, compressor_list={3458606184144042303:0}, compressor_list_lock={4600409427172915218:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={3384991664459217388:0}, npindex_to_proto={6908467952316572090:0}, ppp_class={0:0}, ppp_device_fops={3458746921633413437:0}, ppp_mutex={6914133735194490897:0}, ppp_net_id={-4622962609681860514:0}, ppp_net_ops={-8081727123502407270:0}, ppp_netdev_ops={-5764625115222378179:0}, ppp_unit_count={2314867800654487053:0}] [L6796] COND FALSE !((unsigned long )pf == (unsigned long )((struct ppp_file *)0)) VAL [__this_module={0:0}, channel_count={4611633220360796590:0}, compressor_list={3458606184144042303:0}, compressor_list_lock={4600409427172915218:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={3384991664459217388:0}, npindex_to_proto={6908467952316572090:0}, ppp_class={0:0}, ppp_device_fops={3458746921633413437:0}, ppp_mutex={6914133735194490897:0}, ppp_net_id={-4622962609681860514:0}, ppp_net_ops={-8081727123502407270:0}, ppp_netdev_ops={-5764625115222378179:0}, ppp_unit_count={2314867800654487053:0}] [L6804] COND FALSE !(cmd == 1074033724U) [L6840] EXPR pf->kind VAL [__this_module={0:0}, channel_count={4611633220360796590:0}, compressor_list={3458606184144042303:0}, compressor_list_lock={4600409427172915218:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={3384991664459217388:0}, npindex_to_proto={6908467952316572090:0}, ppp_class={0:0}, ppp_device_fops={3458746921633413437:0}, ppp_mutex={6914133735194490897:0}, ppp_net_id={-4622962609681860514:0}, ppp_net_ops={-8081727123502407270:0}, ppp_netdev_ops={-5764625115222378179:0}, ppp_unit_count={2314867800654487053:0}] [L6840] COND FALSE !((unsigned int )pf->kind == 2U) [L6923] EXPR pf->kind VAL [__this_module={0:0}, channel_count={4611633220360796590:0}, compressor_list={3458606184144042303:0}, compressor_list_lock={4600409427172915218:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={3384991664459217388:0}, npindex_to_proto={6908467952316572090:0}, ppp_class={0:0}, ppp_device_fops={3458746921633413437:0}, ppp_mutex={6914133735194490897:0}, ppp_net_id={-4622962609681860514:0}, ppp_net_ops={-8081727123502407270:0}, ppp_netdev_ops={-5764625115222378179:0}, ppp_unit_count={2314867800654487053:0}] [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={4611633220360796590:0}, compressor_list={3458606184144042303:0}, compressor_list_lock={4600409427172915218:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={3384991664459217388:0}, npindex_to_proto={6908467952316572090:0}, ppp_class={0:0}, ppp_device_fops={3458746921633413437:0}, ppp_mutex={6914133735194490897:0}, ppp_net_id={-4622962609681860514:0}, ppp_net_ops={-8081727123502407270:0}, ppp_netdev_ops={-5764625115222378179:0}, ppp_unit_count={2314867800654487053:0}] [L6935] COND FALSE !((int )cmd == 1074033746) VAL [__this_module={0:0}, channel_count={4611633220360796590:0}, compressor_list={3458606184144042303:0}, compressor_list_lock={4600409427172915218:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={3384991664459217388:0}, npindex_to_proto={6908467952316572090:0}, ppp_class={0:0}, ppp_device_fops={3458746921633413437:0}, ppp_mutex={6914133735194490897:0}, ppp_net_id={-4622962609681860514:0}, ppp_net_ops={-8081727123502407270:0}, ppp_netdev_ops={-5764625115222378179:0}, ppp_unit_count={2314867800654487053:0}] [L6938] COND TRUE (int )cmd == 1074033753 VAL [__this_module={0:0}, channel_count={4611633220360796590:0}, compressor_list={3458606184144042303:0}, compressor_list_lock={4600409427172915218:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={3384991664459217388:0}, npindex_to_proto={6908467952316572090:0}, ppp_class={0:0}, ppp_device_fops={3458746921633413437:0}, ppp_mutex={6914133735194490897:0}, ppp_net_id={-4622962609681860514:0}, ppp_net_ops={-8081727123502407270:0}, ppp_netdev_ops={-5764625115222378179:0}, ppp_unit_count={2314867800654487053:0}] [L7037] val = (int )__val_gu___1 VAL [__this_module={0:0}, channel_count={4611633220360796590:0}, compressor_list={3458606184144042303:0}, compressor_list_lock={4600409427172915218:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={3384991664459217388:0}, npindex_to_proto={6908467952316572090:0}, ppp_class={0:0}, ppp_device_fops={3458746921633413437:0}, ppp_mutex={6914133735194490897:0}, ppp_net_id={-4622962609681860514:0}, ppp_net_ops={-8081727123502407270:0}, ppp_netdev_ops={-5764625115222378179:0}, ppp_unit_count={2314867800654487053:0}] [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={4611633220360796590:0}, compressor_list={3458606184144042303:0}, compressor_list_lock={4600409427172915218:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={3384991664459217388:0}, npindex_to_proto={6908467952316572090:0}, ppp_class={0:0}, ppp_device_fops={3458746921633413437:0}, ppp_mutex={6914133735194490897:0}, ppp_net_id={-4622962609681860514:0}, ppp_net_ops={-8081727123502407270:0}, ppp_netdev_ops={-5764625115222378179:0}, ppp_unit_count={2314867800654487053:0}] [L10846] COND TRUE ldv_module_refcounter <= 1 VAL [__this_module={0:0}, channel_count={4611633220360796590:0}, compressor_list={3458606184144042303:0}, compressor_list_lock={4600409427172915218:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={3384991664459217388:0}, npindex_to_proto={6908467952316572090:0}, ppp_class={0:0}, ppp_device_fops={3458746921633413437:0}, ppp_mutex={6914133735194490897:0}, ppp_net_id={-4622962609681860514:0}, ppp_net_ops={-8081727123502407270:0}, ppp_netdev_ops={-5764625115222378179:0}, ppp_unit_count={2314867800654487053:0}] [L10809] reach_error() VAL [__this_module={0:0}, channel_count={4611633220360796590:0}, compressor_list={3458606184144042303:0}, compressor_list_lock={4600409427172915218:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={3384991664459217388:0}, npindex_to_proto={6908467952316572090:0}, ppp_class={0:0}, ppp_device_fops={3458746921633413437:0}, ppp_mutex={6914133735194490897:0}, ppp_net_id={-4622962609681860514:0}, ppp_net_ops={-8081727123502407270:0}, ppp_netdev_ops={-5764625115222378179:0}, ppp_unit_count={2314867800654487053:0}] - 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: 706255.22ms, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 26.81ms, AutomataDifference: 525375.38ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 35.81ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 135 mSolverCounterUnknown, 15670 SdHoareTripleChecker+Valid, 521619.71ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15670 mSDsluCounter, 168 SdHoareTripleChecker+Invalid, 496158.20ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31659 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48433 IncrementalHoareTripleChecker+Invalid, 48623 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 84 mSDtfsCounter, 48433 mSolverCounterSat, 274.56ms SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 170 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 91.24ms Time, 0.00ms 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, 0.00ms DumpTime, AutomataMinimizationStatistics: 859.71ms AutomataMinimizationTime, 3 MinimizatonAttempts, 2015 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 233.41ms SsaConstructionTime, 92567.59ms SatisfiabilityAnalysisTime, 815.10ms 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 [2021-11-01 11:26:01,625 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...