./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.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 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 03:24:13,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 03:24:13,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 03:24:13,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 03:24:13,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 03:24:13,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 03:24:13,255 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 03:24:13,277 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 03:24:13,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 03:24:13,284 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 03:24:13,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 03:24:13,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 03:24:13,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 03:24:13,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 03:24:13,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 03:24:13,290 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 03:24:13,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 03:24:13,293 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 03:24:13,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 03:24:13,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 03:24:13,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 03:24:13,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 03:24:13,303 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 03:24:13,304 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 03:24:13,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 03:24:13,306 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 03:24:13,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 03:24:13,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 03:24:13,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 03:24:13,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 03:24:13,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 03:24:13,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 03:24:13,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 03:24:13,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 03:24:13,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 03:24:13,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 03:24:13,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 03:24:13,314 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 03:24:13,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 03:24:13,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 03:24:13,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 03:24:13,315 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 03:24:13,340 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 03:24:13,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 03:24:13,341 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 03:24:13,341 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 03:24:13,342 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 03:24:13,342 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 03:24:13,343 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 03:24:13,343 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 03:24:13,343 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 03:24:13,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 03:24:13,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 03:24:13,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 03:24:13,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 03:24:13,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 03:24:13,344 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 03:24:13,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 03:24:13,345 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 03:24:13,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 03:24:13,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 03:24:13,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 03:24:13,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 03:24:13,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:24:13,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 03:24:13,346 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 03:24:13,346 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 03:24:13,346 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 03:24:13,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 03:24:13,346 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 03:24:13,346 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 03:24:13,347 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 03:24:13,347 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 03:24:13,347 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 [2021-12-16 03:24:13,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 03:24:13,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 03:24:13,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 03:24:13,588 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 03:24:13,588 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 03:24:13,589 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2021-12-16 03:24:13,643 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91067812f/6f379e621aca47f5b03175070a26eb2d/FLAG2bc41767f [2021-12-16 03:24:14,527 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 03:24:14,528 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2021-12-16 03:24:14,606 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91067812f/6f379e621aca47f5b03175070a26eb2d/FLAG2bc41767f [2021-12-16 03:24:14,876 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91067812f/6f379e621aca47f5b03175070a26eb2d [2021-12-16 03:24:14,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 03:24:14,880 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 03:24:14,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 03:24:14,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 03:24:14,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 03:24:14,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:24:14" (1/1) ... [2021-12-16 03:24:14,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a9864f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:14, skipping insertion in model container [2021-12-16 03:24:14,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:24:14" (1/1) ... [2021-12-16 03:24:14,891 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 03:24:15,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 03:24:18,010 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2021-12-16 03:24:26,767 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:24:26,791 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 03:24:26,977 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2021-12-16 03:24:27,938 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:24:28,411 INFO L208 MainTranslator]: Completed translation [2021-12-16 03:24:28,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:28 WrapperNode [2021-12-16 03:24:28,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 03:24:28,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 03:24:28,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 03:24:28,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 03:24:28,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:28" (1/1) ... [2021-12-16 03:24:28,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:28" (1/1) ... [2021-12-16 03:24:28,983 INFO L137 Inliner]: procedures = 895, calls = 20422, calls flagged for inlining = 343, calls inlined = 11, statements flattened = 2906 [2021-12-16 03:24:28,999 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 03:24:29,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 03:24:29,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 03:24:29,000 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 03:24:29,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:28" (1/1) ... [2021-12-16 03:24:29,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:28" (1/1) ... [2021-12-16 03:24:29,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:28" (1/1) ... [2021-12-16 03:24:29,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:28" (1/1) ... [2021-12-16 03:24:29,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:28" (1/1) ... [2021-12-16 03:24:29,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:28" (1/1) ... [2021-12-16 03:24:29,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:28" (1/1) ... [2021-12-16 03:24:29,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 03:24:29,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 03:24:29,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 03:24:29,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 03:24:29,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:28" (1/1) ... [2021-12-16 03:24:29,112 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:24:29,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:24:29,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-16 03:24:29,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-16 03:24:29,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 03:24:29,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 03:24:29,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 03:24:29,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 03:24:29,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-12-16 03:24:29,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-12-16 03:24:29,237 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_proc_open [2021-12-16 03:24:29,237 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_proc_open [2021-12-16 03:24:29,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2021-12-16 03:24:29,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2021-12-16 03:24:29,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-16 03:24:29,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-16 03:24:29,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-16 03:24:29,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2021-12-16 03:24:29,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2021-12-16 03:24:29,238 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_proc_release [2021-12-16 03:24:29,238 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_proc_release [2021-12-16 03:24:29,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 03:24:29,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 03:24:29,493 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 03:24:29,494 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 03:24:29,581 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-16 03:25:15,651 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2021-12-16 03:25:15,652 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2021-12-16 03:25:15,678 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 03:25:15,682 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 03:25:15,683 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 03:25:15,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:25:15 BoogieIcfgContainer [2021-12-16 03:25:15,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 03:25:15,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 03:25:15,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 03:25:15,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 03:25:15,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:24:14" (1/3) ... [2021-12-16 03:25:15,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@411c73fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:25:15, skipping insertion in model container [2021-12-16 03:25:15,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:28" (2/3) ... [2021-12-16 03:25:15,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@411c73fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:25:15, skipping insertion in model container [2021-12-16 03:25:15,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:25:15" (3/3) ... [2021-12-16 03:25:15,690 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2021-12-16 03:25:15,694 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 03:25:15,694 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 03:25:15,725 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 03:25:15,730 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 03:25:15,730 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 03:25:15,741 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 49 states have internal predecessors, (60), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-16 03:25:15,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-16 03:25:15,744 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:25:15,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:25:15,745 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:25:15,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:25:15,749 INFO L85 PathProgramCache]: Analyzing trace with hash 68606922, now seen corresponding path program 1 times [2021-12-16 03:25:15,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:25:15,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576882204] [2021-12-16 03:25:15,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:25:15,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:25:16,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:25:16,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:25:16,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576882204] [2021-12-16 03:25:16,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576882204] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:25:16,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:25:16,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 03:25:16,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713112349] [2021-12-16 03:25:16,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:25:16,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:25:16,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:25:16,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:25:16,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:25:16,541 INFO L87 Difference]: Start difference. First operand has 61 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 49 states have internal predecessors, (60), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-12-16 03:25:16,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:25:16,593 INFO L93 Difference]: Finished difference Result 167 states and 216 transitions. [2021-12-16 03:25:16,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:25:16,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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 10 [2021-12-16 03:25:16,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:25:16,604 INFO L225 Difference]: With dead ends: 167 [2021-12-16 03:25:16,604 INFO L226 Difference]: Without dead ends: 103 [2021-12-16 03:25:16,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:25:16,610 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 58 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 03:25:16,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 132 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 03:25:16,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-12-16 03:25:16,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 100. [2021-12-16 03:25:16,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 77 states have (on average 1.2727272727272727) internal successors, (98), 78 states have internal predecessors, (98), 12 states have call successors, (12), 11 states have call predecessors, (12), 10 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2021-12-16 03:25:16,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 122 transitions. [2021-12-16 03:25:16,643 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 122 transitions. Word has length 10 [2021-12-16 03:25:16,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:25:16,643 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 122 transitions. [2021-12-16 03:25:16,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-12-16 03:25:16,644 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 122 transitions. [2021-12-16 03:25:16,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-16 03:25:16,645 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:25:16,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:25:16,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 03:25:16,645 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:25:16,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:25:16,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1277375410, now seen corresponding path program 1 times [2021-12-16 03:25:16,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:25:16,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074238652] [2021-12-16 03:25:16,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:25:16,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:25:16,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:17,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:25:17,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:25:17,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074238652] [2021-12-16 03:25:17,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074238652] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:25:17,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:25:17,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:25:17,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175711516] [2021-12-16 03:25:17,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:25:17,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:25:17,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:25:17,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:25:17,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:25:17,022 INFO L87 Difference]: Start difference. First operand 100 states and 122 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:25:17,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:25:17,044 INFO L93 Difference]: Finished difference Result 213 states and 268 transitions. [2021-12-16 03:25:17,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:25:17,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-16 03:25:17,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:25:17,046 INFO L225 Difference]: With dead ends: 213 [2021-12-16 03:25:17,046 INFO L226 Difference]: Without dead ends: 115 [2021-12-16 03:25:17,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:25:17,048 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 10 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 03:25:17,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 113 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 03:25:17,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-12-16 03:25:17,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-12-16 03:25:17,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 92 states have (on average 1.2826086956521738) internal successors, (118), 93 states have internal predecessors, (118), 12 states have call successors, (12), 11 states have call predecessors, (12), 10 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2021-12-16 03:25:17,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 142 transitions. [2021-12-16 03:25:17,058 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 142 transitions. Word has length 19 [2021-12-16 03:25:17,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:25:17,058 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 142 transitions. [2021-12-16 03:25:17,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:25:17,059 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 142 transitions. [2021-12-16 03:25:17,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-16 03:25:17,060 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:25:17,060 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] [2021-12-16 03:25:17,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 03:25:17,060 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:25:17,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:25:17,061 INFO L85 PathProgramCache]: Analyzing trace with hash 359859625, now seen corresponding path program 1 times [2021-12-16 03:25:17,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:25:17,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633067518] [2021-12-16 03:25:17,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:25:17,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:25:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:17,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 03:25:17,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:17,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:25:17,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:17,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:25:17,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:25:17,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633067518] [2021-12-16 03:25:17,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633067518] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:25:17,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:25:17,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 03:25:17,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528938157] [2021-12-16 03:25:17,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:25:17,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 03:25:17,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:25:17,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 03:25:17,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 03:25:17,476 INFO L87 Difference]: Start difference. First operand 115 states and 142 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-16 03:25:18,607 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:25:18,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:25:18,711 INFO L93 Difference]: Finished difference Result 193 states and 237 transitions. [2021-12-16 03:25:18,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 03:25:18,711 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2021-12-16 03:25:18,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:25:18,713 INFO L225 Difference]: With dead ends: 193 [2021-12-16 03:25:18,713 INFO L226 Difference]: Without dead ends: 133 [2021-12-16 03:25:18,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-16 03:25:18,714 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 35 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-16 03:25:18,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 342 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-16 03:25:18,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-12-16 03:25:18,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 125. [2021-12-16 03:25:18,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 100 states have (on average 1.26) internal successors, (126), 102 states have internal predecessors, (126), 12 states have call successors, (12), 11 states have call predecessors, (12), 12 states have return successors, (14), 11 states have call predecessors, (14), 10 states have call successors, (14) [2021-12-16 03:25:18,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 152 transitions. [2021-12-16 03:25:18,723 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 152 transitions. Word has length 29 [2021-12-16 03:25:18,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:25:18,724 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 152 transitions. [2021-12-16 03:25:18,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-16 03:25:18,724 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 152 transitions. [2021-12-16 03:25:18,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-16 03:25:18,725 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:25:18,725 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] [2021-12-16 03:25:18,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 03:25:18,726 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:25:18,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:25:18,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1823952005, now seen corresponding path program 1 times [2021-12-16 03:25:18,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:25:18,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714235494] [2021-12-16 03:25:18,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:25:18,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:25:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 03:25:20,314 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 03:25:21,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 03:25:21,580 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 03:25:21,580 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-16 03:25:21,581 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-16 03:25:21,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 03:25:21,585 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-12-16 03:25:21,587 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-16 03:25:21,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:25:21 BoogieIcfgContainer [2021-12-16 03:25:21,660 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-16 03:25:21,660 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 03:25:21,661 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 03:25:21,661 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 03:25:21,661 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:25:15" (3/4) ... [2021-12-16 03:25:21,664 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-16 03:25:21,664 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 03:25:21,664 INFO L158 Benchmark]: Toolchain (without parser) took 66784.07ms. Allocated memory was 125.8MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 65.0MB in the beginning and 886.6MB in the end (delta: -821.5MB). Peak memory consumption was 812.1MB. Max. memory is 16.1GB. [2021-12-16 03:25:21,665 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 79.7MB. Free memory is still 37.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 03:25:21,665 INFO L158 Benchmark]: CACSL2BoogieTranslator took 13530.77ms. Allocated memory was 125.8MB in the beginning and 490.7MB in the end (delta: 364.9MB). Free memory was 65.0MB in the beginning and 221.6MB in the end (delta: -156.6MB). Peak memory consumption was 247.1MB. Max. memory is 16.1GB. [2021-12-16 03:25:21,665 INFO L158 Benchmark]: Boogie Procedure Inliner took 586.94ms. Allocated memory is still 490.7MB. Free memory was 221.6MB in the beginning and 178.6MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2021-12-16 03:25:21,666 INFO L158 Benchmark]: Boogie Preprocessor took 104.86ms. Allocated memory is still 490.7MB. Free memory was 178.6MB in the beginning and 166.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-16 03:25:21,666 INFO L158 Benchmark]: RCFGBuilder took 46578.58ms. Allocated memory was 490.7MB in the beginning and 1.8GB in the end (delta: 1.3GB). Free memory was 166.0MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 972.5MB. Max. memory is 16.1GB. [2021-12-16 03:25:21,666 INFO L158 Benchmark]: TraceAbstraction took 5974.38ms. Allocated memory is still 1.8GB. Free memory was 1.2GB in the beginning and 886.6MB in the end (delta: 362.3MB). Peak memory consumption was 362.3MB. Max. memory is 16.1GB. [2021-12-16 03:25:21,667 INFO L158 Benchmark]: Witness Printer took 3.50ms. Allocated memory is still 1.8GB. Free memory is still 886.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 03:25:21,668 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 79.7MB. Free memory is still 37.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 13530.77ms. Allocated memory was 125.8MB in the beginning and 490.7MB in the end (delta: 364.9MB). Free memory was 65.0MB in the beginning and 221.6MB in the end (delta: -156.6MB). Peak memory consumption was 247.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 586.94ms. Allocated memory is still 490.7MB. Free memory was 221.6MB in the beginning and 178.6MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 104.86ms. Allocated memory is still 490.7MB. Free memory was 178.6MB in the beginning and 166.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 46578.58ms. Allocated memory was 490.7MB in the beginning and 1.8GB in the end (delta: 1.3GB). Free memory was 166.0MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 972.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5974.38ms. Allocated memory is still 1.8GB. Free memory was 1.2GB in the beginning and 886.6MB in the end (delta: 362.3MB). Peak memory consumption was 362.3MB. Max. memory is 16.1GB. * Witness Printer took 3.50ms. Allocated memory is still 1.8GB. Free memory is still 886.6MB. 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 10085]: 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 30360. Possible FailurePath: [L10081] int LDV_IN_INTERRUPT ; [L10089] int ldv_module_refcounter = 1; [L10213] struct proc_dir_entry *drbd_proc ; [L10278-L10307] struct file_operations const drbd_proc_fops = {& __this_module, & seq_lseek, & seq_read, (ssize_t (*)(struct file * , char const * , size_t , loff_t * ))0, (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, (unsigned int (*)(struct file * , struct poll_table_struct * ))0, (long (*)(struct file * , unsigned int , unsigned long ))0, (long (*)(struct file * , unsigned int , unsigned long ))0, (int (*)(struct file * , struct vm_area_struct * ))0, & drbd_proc_open, (int (*)(struct file * , fl_owner_t ))0, & drbd_proc_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}; [L11265] rwlock_t global_state_lock ; [L22328-L22383] static struct data_cmd drbd_cmd_handler[43U] = { {1, 32UL, & receive_Data}, {1, 32UL, & receive_DataReply}, {1, 32UL, & receive_RSDataReply}, {0, 16UL, & receive_Barrier}, {1, 8UL, & receive_bitmap}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 8UL, & receive_UnplugRemote}, {0, 32UL, & receive_DataRequest}, {0, 32UL, & receive_DataRequest}, {1, 8UL, & receive_SyncParam}, {1, 32UL, & receive_protocol}, {0, 56UL, & receive_uuids}, {0, 40UL, & receive_sizes}, {0, 12UL, & receive_state}, {0, 16UL, & receive_sync_uuid}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 16UL, & receive_req_state}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 32UL, & receive_DataRequest}, {1, 32UL, & receive_DataRequest}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {1, 32UL, & receive_DataRequest}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {1, 8UL, & receive_SyncParam}, {1, 8UL, & receive_bitmap}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 16UL, & receive_skip}, {0, 24UL, & receive_out_of_sync}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}}; [L29586] int disable_sendpage ; [L29587] int allow_oos ; [L29589] int enable_faults ; [L29590] int fault_rate ; [L29591] int fault_devs ; [L29593] struct drbd_conf **minor_table ; [L29657] struct kmem_cache *drbd_request_cache ; [L29658] struct kmem_cache *drbd_ee_cache ; [L29659] struct kmem_cache *drbd_bm_ext_cache ; [L29660] struct kmem_cache *drbd_al_ext_cache ; [L29661] mempool_t *drbd_request_mempool ; [L29662] mempool_t *drbd_ee_mempool ; [L29663] struct page *drbd_pp_pool ; [L29664] spinlock_t drbd_pp_lock ; [L29665] int drbd_pp_vacant ; [L29666] wait_queue_head_t drbd_pp_wait ; [L29669] int proc_details ; [L30357-L30365] static struct mutex drbd_main_mutex = {{1}, {{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "drbd_main_mutex.wait_lock", 0, 0UL}}}}, {& drbd_main_mutex.wait_list, & drbd_main_mutex.wait_list}, (struct task_struct *)0, (char const *)0, (void *)(& drbd_main_mutex), {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "drbd_main_mutex", 0, 0UL}}; [L30376] static int fault_count ; [L30377] unsigned int minor_count = 32U; [L30378] unsigned int cn_idx = 8U; [L30379-L30383] char usermode_helper[80U] = { (char )'/', (char )'s', (char )'b', (char )'i', (char )'n', (char )'/', (char )'d', (char )'r', (char )'b', (char )'d', (char )'a', (char )'d', (char )'m', (char )'\000'}; [L30384-L30389] struct ratelimit_state drbd_ratelimit_state = {{{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "drbd_ratelimit_state.lock", 0, 0UL}}}}, 1250, 5, 0, 0, 0UL}; [L30390-L30401] static struct block_device_operations const drbd_ops = {& drbd_open, & drbd_release, (int (*)(struct block_device * , fmode_t , unsigned int , unsigned long ))0, (int (*)(struct block_device * , fmode_t , unsigned int , unsigned long ))0, (int (*)(struct block_device * , sector_t , void ** , unsigned long * ))0, (unsigned int (*)(struct gendisk * , unsigned int ))0, (int (*)(struct gendisk * ))0, (void (*)(struct gendisk * ))0, (int (*)(struct gendisk * ))0, (int (*)(struct block_device * , struct hd_geometry * ))0, (void (*)(struct block_device * , unsigned long ))0, & __this_module}; [L36025] static struct notifier_block drbd_notifier = {& drbd_notify_sys, (struct notifier_block *)0, 0}; [L37468-L37474] static char const *drbd_conn_s_names[24U] = { "StandAlone", "Disconnecting", "Unconnected", "Timeout", "BrokenPipe", "NetworkFailure", "ProtocolError", "TearDown", "WFConnection", "WFReportParams", "Connected", "StartingSyncS", "StartingSyncT", "WFBitMapS", "WFBitMapT", "WFSyncUUID", "SyncSource", "SyncTarget", "VerifyS", "VerifyT", "PausedSyncS", "PausedSyncT", "Ahead", "Behind"}; [L37475] static char const *drbd_role_s_names[3U] = { "Unknown", "Primary", "Secondary"}; [L37476-L37479] static char const *drbd_disk_s_names[9U] = { "Diskless", "Attaching", "Failed", "Negotiating", "Inconsistent", "Outdated", "DUnknown", "Consistent", "UpToDate"}; [L37480-L37485] static char const *drbd_state_sw_errors[20U] = { (char const *)0, "Multiple primaries not allowed by config", "Need access to UpToDate data", (char const *)0, "Can not resync without local disk", "Can not resync without remote disk", "Refusing to be Outdated while Connected", "Refusing to be Primary while peer is not outdated", "Can not start OV/resync since it is already active", "Can not disconnect a StandAlone device", "State change was refused by peer node", "Device is diskless, the requested operation requires a disk", "Device is held open by someone", "Have no net/connection configuration", "Need a verify algorithm to start online verify", "Need a connection to start verify or resync", "Disk state is lower than outdated", "Peer does not support protocol", "In transient state, retry after next state change", "Concurrent state changes detected and aborted"}; [L37804-L37889] static struct tag const tag_descriptions[85U] = { {(char const *)0, 0, 0}, {"primary_force", 32768, 4}, {"disk_size", 16384, 8}, {"backing_dev", 57344, 128}, {"meta_dev", 57344, 128}, {"meta_dev_idx", 8192, 4}, {"on_io_error", 0, 4}, {"fencing", 0, 4}, {"my_addr", 57344, 128}, {"peer_addr", 57344, 128}, {"shared_secret", 49152, 64}, {"cram_hmac_alg", 49152, 64}, {(char const *)0, 0, 0}, {(char const *)0, 0, 0}, {"timeout", 0, 4}, {"wire_protocol", 8192, 4}, {"try_connect_int", 0, 4}, {"ping_int", 0, 4}, {"max_epoch_size", 0, 4}, {"max_buffers", 0, 4}, {"unplug_watermark", 0, 4}, {"sndbuf_size", 0, 4}, {"ko_count", 0, 4}, {(char const *)0, 0, 0}, {"after_sb_0p", 0, 4}, {"after_sb_1p", 0, 4}, {"after_sb_2p", 0, 4}, {"want_lose", 32768, 4}, {"two_primaries", 32768, 4}, {"resize_size", 16384, 8}, {"rate", 0, 4}, {"after", 0, 4}, {"al_extents", 0, 4}, {"state_i", 0, 4}, {"uuids", 49152, 32}, {"uuids_flags", 0, 4}, {"use_degraded", 32768, 4}, {"use_bmbv", 32768, 4}, {"helper", 49152, 32}, {"rr_conflict", 0, 4}, {"ping_timeo", 0, 4}, {"always_asbp", 32768, 4}, {(char const *)0, 0, 0}, {"sync_progress", 0, 4}, {"integrity_alg", 49152, 64}, {"dump_ee_reason", 49152, 32}, {"seen_digest", 49152, 64}, {"calc_digest", 49152, 64}, {"ee_sector", 16384, 8}, {"ee_block_id", 16384, 8}, {"ee_data", 49152, 32768}, {"cpu_mask", 49152, 32}, {"verify_alg", 49152, 64}, {"no_disk_flush", 32768, 4}, {"no_md_flush", 32768, 4}, {(char const *)0, 0, 0}, {"max_bio_bvecs", 0, 4}, {"no_disk_barrier", 32768, 4}, {"no_disk_drain", 32768, 4}, {(char const *)0, 0, 0}, {"mind_af", 40960, 4}, {"no_cork", 32768, 4}, {"auto_sndbuf_size", 40960, 4}, {"clear_bm", 40960, 4}, {"csums_alg", 49152, 64}, {"use_rle", 32768, 4}, {"start_sector", 16384, 8}, {"rcvbuf_size", 0, 4}, {"resize_force", 32768, 4}, {"no_resync", 40960, 4}, {"dry_run", 40960, 4}, {(char const *)0, 0, 0}, {(char const *)0, 0, 0}, {(char const *)0, 0, 0}, {(char const *)0, 0, 0}, {"on_no_data", 0, 4}, {"c_plan_ahead", 0, 4}, {"c_delay_target", 0, 4}, {"c_fill_target", 0, 4}, {"c_max_rate", 0, 4}, {"c_min_rate", 0, 4}, {"on_congestion", 0, 4}, {"cong_fill", 0, 4}, {"cong_extents", 0, 4}, {"force", 32768, 4}}; [L37894] static char *drbd_m_holder = (char *)"Hands off! this is DRBD\'s meta data device."; [L48088-L48121] static struct cn_handler_struct cnd_table[27U] = { {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {& drbd_nl_primary, 0}, {& drbd_nl_secondary, 0}, {& drbd_nl_disk_conf, 0}, {& drbd_nl_detach, 0}, {& drbd_nl_net_conf, 0}, {& drbd_nl_disconnect, 0}, {& drbd_nl_resize, 0}, {& drbd_nl_syncer_conf, 0}, {& drbd_nl_invalidate, 0}, {& drbd_nl_invalidate_peer, 0}, {& drbd_nl_pause_sync, 0}, {& drbd_nl_resume_sync, 0}, {& drbd_nl_suspend_io, 0}, {& drbd_nl_resume_io, 0}, {& drbd_nl_outdate, 0}, {& drbd_nl_get_config, 1312}, {& drbd_nl_get_state, 16}, {& drbd_nl_get_uuids, 48}, {& drbd_nl_get_timeout_flag, 8}, {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {& drbd_nl_start_ov, 0}, {& drbd_nl_new_c_uuid, 0}}; [L48229] static atomic_t drbd_nl_seq = {2}; VAL [__this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, usermode_helper={1500:0}] [L10746] struct inode *var_group1 ; [L10747] struct file *var_group2 ; [L10748] int res_drbd_proc_open_4 ; [L10749] int ldv_s_drbd_proc_fops_file_operations ; [L10750] int tmp ; [L10751] int tmp___0 ; [L10754] ldv_s_drbd_proc_fops_file_operations = 0 [L10755] LDV_IN_INTERRUPT = 1 [L10756] FCALL ldv_initialize() [L10802] tmp___0 = __VERIFIER_nondet_int() [L10804] COND TRUE tmp___0 != 0 VAL [__this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_drbd_proc_fops_file_operations=0, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, tmp___0=-2, usermode_helper={1500:0}] [L10761] tmp = __VERIFIER_nondet_int() [L10763] COND TRUE tmp == 0 VAL [__this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_drbd_proc_fops_file_operations=0, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, tmp=0, tmp___0=-2, usermode_helper={1500:0}] [L10772] COND TRUE ldv_s_drbd_proc_fops_file_operations == 0 VAL [__this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_drbd_proc_fops_file_operations=0, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, tmp=0, tmp___0=-2, usermode_helper={1500:0}] [L10774] CALL, EXPR drbd_proc_open(var_group1, var_group2) VAL [\old(ldv_module_refcounter)=1, __this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, usermode_helper={1500:0}] [L10716] struct proc_dir_entry *tmp ; [L10717] int tmp___0 ; [L10718] int tmp___1 ; VAL [\old(ldv_module_refcounter)=1, __this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, file={1152921504606846999:1152921504606846996}, file={1152921504606846999:1152921504606846996}, global_state_lock={1494:0}, inode={1152921504606847000:-1355835689417651968512}, inode={1152921504606847000:-1355835689417651968512}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, usermode_helper={1500:0}] [L10721] CALL, EXPR ldv_try_module_get_1(& __this_module) VAL [\old(ldv_module_refcounter)=1, __this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, usermode_helper={1500:0}] [L10821] int tmp ; [L10824] CALL, EXPR ldv_try_module_get(module) [L10101] int module_get_succeeded ; VAL [\old(ldv_module_refcounter)=1, __this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, module={1511:-1510}, module={1511:-1510}, proc_details=0, tag_descriptions={1508:0}, usermode_helper={1500:0}] [L10103] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) [L10105] CALL, EXPR ldv_undefined_int() [L49395] return __VERIFIER_nondet_int(); [L10105] RET, EXPR ldv_undefined_int() [L10105] module_get_succeeded = ldv_undefined_int() [L10107] COND TRUE module_get_succeeded == 1 [L10108] ldv_module_refcounter = ldv_module_refcounter + 1 [L10109] return (1); VAL [\old(ldv_module_refcounter)=1, \result=1, __this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, module={1511:-1510}, module={1511:-1510}, module_get_succeeded=1, proc_details=0, tag_descriptions={1508:0}, usermode_helper={1500:0}] [L10824] RET, EXPR ldv_try_module_get(module) [L10824] tmp = ldv_try_module_get(module) [L10826] return (tmp); VAL [\old(ldv_module_refcounter)=1, \result=1, __this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, module={1511:-1510}, module={1511:-1510}, proc_details=0, tag_descriptions={1508:0}, tmp=1, usermode_helper={1500:0}] [L10721] RET, EXPR ldv_try_module_get_1(& __this_module) VAL [\old(ldv_module_refcounter)=1, __this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, file={1152921504606846999:1152921504606846996}, file={1152921504606846999:1152921504606846996}, global_state_lock={1494:0}, inode={1152921504606847000:-1355835689417651968512}, inode={1152921504606847000:-1355835689417651968512}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_try_module_get_1(& __this_module)=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, usermode_helper={1500:0}] [L10721] tmp___1 = ldv_try_module_get_1(& __this_module) [L10723] COND TRUE tmp___1 != 0 [L10725] CALL, EXPR PDE((struct inode const *)inode) [L10179] struct proc_inode *tmp ; [L10182] CALL, EXPR PROC_I(inode) [L10172] struct inode const *__mptr ; [L10174] __mptr = inode [L10175] return ((struct proc_inode *)__mptr + 0x0fffffffffffffc0UL); VAL [\old(ldv_module_refcounter)=1, \result={1152921504606847000:0}, __mptr={1152921504606847000:-1355835689417651968512}, __this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, inode={1152921504606847000:-1355835689417651968512}, inode={1152921504606847000:-1355835689417651968512}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, usermode_helper={1500:0}] [L10182] RET, EXPR PROC_I(inode) [L10182] tmp = PROC_I(inode) [L10184] EXPR tmp->pde [L10184] return (tmp->pde); [L10725] RET, EXPR PDE((struct inode const *)inode) [L10725] tmp = PDE((struct inode const *)inode) [L10726] EXPR tmp->data [L10726] CALL, EXPR single_open(file, & drbd_seq_show, tmp->data) [L49504] return __VERIFIER_nondet_int(); [L10726] RET, EXPR single_open(file, & drbd_seq_show, tmp->data) [L10726] tmp___0 = single_open(file, & drbd_seq_show, tmp->data) [L10728] return (tmp___0); VAL [\old(ldv_module_refcounter)=1, \result=1512, __this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, file={1152921504606846999:1152921504606846996}, file={1152921504606846999:1152921504606846996}, global_state_lock={1494:0}, inode={1152921504606847000:-1355835689417651968512}, inode={1152921504606847000:-1355835689417651968512}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, tmp={1152921504606847003:-87}, tmp___0=1512, tmp___1=1, usermode_helper={1500:0}] [L10774] RET, EXPR drbd_proc_open(var_group1, var_group2) VAL [__this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_proc_open(var_group1, var_group2)=1512, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_drbd_proc_fops_file_operations=0, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, tmp=0, tmp___0=-2, usermode_helper={1500:0}, var_group1={1152921504606847000:-1355835689417651968512}, var_group2={1152921504606846999:1152921504606846996}] [L10774] res_drbd_proc_open_4 = drbd_proc_open(var_group1, var_group2) [L10775] FCALL ldv_check_return_value(res_drbd_proc_open_4) [L10777] COND TRUE res_drbd_proc_open_4 != 0 VAL [__this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_drbd_proc_fops_file_operations=0, minor_count=32, minor_table={0:0}, proc_details=0, res_drbd_proc_open_4=1512, tag_descriptions={1508:0}, tmp=0, tmp___0=-2, usermode_helper={1500:0}, var_group1={1152921504606847000:-1355835689417651968512}, var_group2={1152921504606846999:1152921504606846996}] [L10815] CALL ldv_check_final_state() [L10153] COND TRUE ldv_module_refcounter != 1 VAL [__this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, usermode_helper={1500:0}] [L10155] CALL ldv_blast_assert() VAL [__this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, usermode_helper={1500:0}] [L10085] reach_error() VAL [__this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, usermode_helper={1500:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 104 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 103 mSDsluCounter, 587 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 386 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 88 IncrementalHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 201 mSDtfsCounter, 88 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=3, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 97 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 [2021-12-16 03:25:21,712 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...