./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa --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-hotfix-svcomp22-839c364 [2021-12-06 19:36:14,506 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:36:14,508 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:36:14,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:36:14,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:36:14,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:36:14,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:36:14,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:36:14,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:36:14,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:36:14,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:36:14,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:36:14,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:36:14,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:36:14,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:36:14,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:36:14,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:36:14,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:36:14,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:36:14,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:36:14,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:36:14,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:36:14,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:36:14,551 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:36:14,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:36:14,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:36:14,555 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:36:14,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:36:14,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:36:14,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:36:14,557 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:36:14,558 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:36:14,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:36:14,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:36:14,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:36:14,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:36:14,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:36:14,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:36:14,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:36:14,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:36:14,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:36:14,564 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 19:36:14,587 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:36:14,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:36:14,587 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:36:14,588 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:36:14,588 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 19:36:14,588 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 19:36:14,589 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:36:14,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:36:14,589 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:36:14,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:36:14,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 19:36:14,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:36:14,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 19:36:14,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 19:36:14,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 19:36:14,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 19:36:14,591 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:36:14,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 19:36:14,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:36:14,591 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:36:14,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 19:36:14,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:36:14,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:36:14,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 19:36:14,592 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 19:36:14,593 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 19:36:14,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 19:36:14,593 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 19:36:14,593 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 19:36:14,593 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 19:36:14,593 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:36:14,594 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 [2021-12-06 19:36:14,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:36:14,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:36:14,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:36:14,802 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:36:14,802 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:36:14,803 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2021-12-06 19:36:14,852 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/data/940de1671/f09bd001ced4498187d90cd407508ce4/FLAGc0b37fa96 [2021-12-06 19:36:15,856 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:36:15,857 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2021-12-06 19:36:15,924 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/data/940de1671/f09bd001ced4498187d90cd407508ce4/FLAGc0b37fa96 [2021-12-06 19:36:16,400 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/data/940de1671/f09bd001ced4498187d90cd407508ce4 [2021-12-06 19:36:16,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:36:16,412 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:36:16,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:36:16,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:36:16,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:36:16,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:36:16" (1/1) ... [2021-12-06 19:36:16,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@438a7fd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:36:16, skipping insertion in model container [2021-12-06 19:36:16,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:36:16" (1/1) ... [2021-12-06 19:36:16,439 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:36:16,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:36:19,192 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2021-12-06 19:36:27,767 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:36:27,801 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:36:28,048 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2021-12-06 19:36:28,962 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:36:29,220 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:36:29,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:36:29 WrapperNode [2021-12-06 19:36:29,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:36:29,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:36:29,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:36:29,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:36:29,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:36:29" (1/1) ... [2021-12-06 19:36:29,430 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:36:29" (1/1) ... [2021-12-06 19:36:29,532 INFO L137 Inliner]: procedures = 895, calls = 20422, calls flagged for inlining = 343, calls inlined = 11, statements flattened = 2906 [2021-12-06 19:36:29,532 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:36:29,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:36:29,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:36:29,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:36:29,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:36:29" (1/1) ... [2021-12-06 19:36:29,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:36:29" (1/1) ... [2021-12-06 19:36:29,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:36:29" (1/1) ... [2021-12-06 19:36:29,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:36:29" (1/1) ... [2021-12-06 19:36:29,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:36:29" (1/1) ... [2021-12-06 19:36:29,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:36:29" (1/1) ... [2021-12-06 19:36:29,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:36:29" (1/1) ... [2021-12-06 19:36:29,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:36:29,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:36:29,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:36:29,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:36:29,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:36:29" (1/1) ... [2021-12-06 19:36:29,618 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:36:29,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:36:29,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 19:36:29,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 19:36:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 19:36:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:36:29,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:36:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 19:36:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-12-06 19:36:29,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-12-06 19:36:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_proc_open [2021-12-06 19:36:29,677 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_proc_open [2021-12-06 19:36:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2021-12-06 19:36:29,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2021-12-06 19:36:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-06 19:36:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-06 19:36:29,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-06 19:36:29,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2021-12-06 19:36:29,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2021-12-06 19:36:29,678 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_proc_release [2021-12-06 19:36:29,678 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_proc_release [2021-12-06 19:36:29,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 19:36:29,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 19:36:29,928 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:36:29,929 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:36:30,056 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 19:37:27,284 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2021-12-06 19:37:27,285 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2021-12-06 19:37:27,301 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:37:27,307 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:37:27,307 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 19:37:27,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:37:27 BoogieIcfgContainer [2021-12-06 19:37:27,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:37:27,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 19:37:27,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 19:37:27,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 19:37:27,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:36:16" (1/3) ... [2021-12-06 19:37:27,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@669b35df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:37:27, skipping insertion in model container [2021-12-06 19:37:27,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:36:29" (2/3) ... [2021-12-06 19:37:27,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@669b35df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:37:27, skipping insertion in model container [2021-12-06 19:37:27,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:37:27" (3/3) ... [2021-12-06 19:37:27,315 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2021-12-06 19:37:27,320 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 19:37:27,320 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 19:37:27,359 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 19:37:27,365 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 [2021-12-06 19:37:27,365 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 19:37:27,380 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) [2021-12-06 19:37:27,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-06 19:37:27,384 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:37:27,385 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:37:27,385 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:37:27,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:37:27,390 INFO L85 PathProgramCache]: Analyzing trace with hash 68606922, now seen corresponding path program 1 times [2021-12-06 19:37:27,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:37:27,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128022287] [2021-12-06 19:37:27,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:37:27,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:37:27,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:37:28,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:37:28,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:37:28,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128022287] [2021-12-06 19:37:28,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128022287] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:37:28,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:37:28,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:37:28,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332887634] [2021-12-06 19:37:28,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:37:28,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:37:28,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:37:28,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:37:28,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:37:28,074 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) [2021-12-06 19:37:28,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:37:28,112 INFO L93 Difference]: Finished difference Result 167 states and 216 transitions. [2021-12-06 19:37:28,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:37:28,114 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 [2021-12-06 19:37:28,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:37:28,124 INFO L225 Difference]: With dead ends: 167 [2021-12-06 19:37:28,124 INFO L226 Difference]: Without dead ends: 103 [2021-12-06 19:37:28,128 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 [2021-12-06 19:37:28,131 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 [2021-12-06 19:37:28,131 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] [2021-12-06 19:37:28,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-12-06 19:37:28,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 100. [2021-12-06 19:37:28,164 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) [2021-12-06 19:37:28,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 122 transitions. [2021-12-06 19:37:28,167 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 122 transitions. Word has length 10 [2021-12-06 19:37:28,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:37:28,167 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 122 transitions. [2021-12-06 19:37:28,168 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) [2021-12-06 19:37:28,168 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 122 transitions. [2021-12-06 19:37:28,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-06 19:37:28,169 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:37:28,169 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:37:28,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 19:37:28,169 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:37:28,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:37:28,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1277375410, now seen corresponding path program 1 times [2021-12-06 19:37:28,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:37:28,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373253772] [2021-12-06 19:37:28,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:37:28,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:37:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:37:28,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:37:28,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:37:28,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373253772] [2021-12-06 19:37:28,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373253772] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:37:28,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:37:28,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:37:28,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479848651] [2021-12-06 19:37:28,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:37:28,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:37:28,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:37:28,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:37:28,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:37:28,564 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) [2021-12-06 19:37:28,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:37:28,589 INFO L93 Difference]: Finished difference Result 213 states and 268 transitions. [2021-12-06 19:37:28,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:37:28,589 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 [2021-12-06 19:37:28,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:37:28,591 INFO L225 Difference]: With dead ends: 213 [2021-12-06 19:37:28,591 INFO L226 Difference]: Without dead ends: 115 [2021-12-06 19:37:28,592 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 [2021-12-06 19:37:28,593 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 [2021-12-06 19:37:28,593 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] [2021-12-06 19:37:28,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-12-06 19:37:28,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-12-06 19:37:28,604 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) [2021-12-06 19:37:28,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 142 transitions. [2021-12-06 19:37:28,606 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 142 transitions. Word has length 19 [2021-12-06 19:37:28,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:37:28,606 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 142 transitions. [2021-12-06 19:37:28,606 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) [2021-12-06 19:37:28,606 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 142 transitions. [2021-12-06 19:37:28,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-06 19:37:28,607 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:37:28,607 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] [2021-12-06 19:37:28,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 19:37:28,608 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:37:28,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:37:28,608 INFO L85 PathProgramCache]: Analyzing trace with hash 359859625, now seen corresponding path program 1 times [2021-12-06 19:37:28,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:37:28,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837109382] [2021-12-06 19:37:28,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:37:28,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:37:28,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:37:28,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 19:37:28,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:37:28,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:37:28,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:37:29,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:37:29,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:37:29,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837109382] [2021-12-06 19:37:29,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837109382] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:37:29,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:37:29,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:37:29,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724046463] [2021-12-06 19:37:29,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:37:29,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:37:29,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:37:29,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:37:29,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:37:29,038 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) [2021-12-06 19:37:30,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:37:30,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:37:30,576 INFO L93 Difference]: Finished difference Result 197 states and 241 transitions. [2021-12-06 19:37:30,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 19:37:30,576 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 [2021-12-06 19:37:30,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:37:30,578 INFO L225 Difference]: With dead ends: 197 [2021-12-06 19:37:30,578 INFO L226 Difference]: Without dead ends: 137 [2021-12-06 19:37:30,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:37:30,579 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 39 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:37:30,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 326 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-06 19:37:30,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-12-06 19:37:30,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 125. [2021-12-06 19:37:30,591 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) [2021-12-06 19:37:30,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 152 transitions. [2021-12-06 19:37:30,593 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 152 transitions. Word has length 29 [2021-12-06 19:37:30,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:37:30,593 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 152 transitions. [2021-12-06 19:37:30,593 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) [2021-12-06 19:37:30,593 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 152 transitions. [2021-12-06 19:37:30,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-06 19:37:30,594 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:37:30,594 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] [2021-12-06 19:37:30,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 19:37:30,594 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:37:30,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:37:30,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1823952005, now seen corresponding path program 1 times [2021-12-06 19:37:30,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:37:30,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206363383] [2021-12-06 19:37:30,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:37:30,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:37:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:37:32,297 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:37:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:37:33,868 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:37:33,869 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 19:37:33,869 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 19:37:33,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 19:37:33,873 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-12-06 19:37:33,875 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 19:37:33,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 07:37:33 BoogieIcfgContainer [2021-12-06 19:37:33,969 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 19:37:33,969 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 19:37:33,969 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 19:37:33,970 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 19:37:33,970 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:37:27" (3/4) ... [2021-12-06 19:37:33,973 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 19:37:33,973 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 19:37:33,974 INFO L158 Benchmark]: Toolchain (without parser) took 77562.85ms. Allocated memory was 125.8MB in the beginning and 2.3GB in the end (delta: 2.2GB). Free memory was 63.9MB in the beginning and 844.6MB in the end (delta: -780.8MB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2021-12-06 19:37:33,974 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 125.8MB. Free memory is still 100.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:37:33,975 INFO L158 Benchmark]: CACSL2BoogieTranslator took 12804.35ms. Allocated memory was 125.8MB in the beginning and 715.1MB in the end (delta: 589.3MB). Free memory was 63.9MB in the beginning and 448.9MB in the end (delta: -385.0MB). Peak memory consumption was 329.2MB. Max. memory is 16.1GB. [2021-12-06 19:37:33,976 INFO L158 Benchmark]: Boogie Procedure Inliner took 311.63ms. Allocated memory is still 715.1MB. Free memory was 448.9MB in the beginning and 405.9MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2021-12-06 19:37:33,976 INFO L158 Benchmark]: Boogie Preprocessor took 77.74ms. Allocated memory is still 715.1MB. Free memory was 405.9MB in the beginning and 394.4MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 19:37:33,977 INFO L158 Benchmark]: RCFGBuilder took 57697.52ms. Allocated memory was 715.1MB in the beginning and 2.3GB in the end (delta: 1.6GB). Free memory was 394.4MB in the beginning and 910.0MB in the end (delta: -515.6MB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2021-12-06 19:37:33,977 INFO L158 Benchmark]: TraceAbstraction took 6658.99ms. Allocated memory is still 2.3GB. Free memory was 910.0MB in the beginning and 844.6MB in the end (delta: 65.4MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. [2021-12-06 19:37:33,978 INFO L158 Benchmark]: Witness Printer took 3.89ms. Allocated memory is still 2.3GB. Free memory is still 844.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:37:33,980 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 125.8MB. Free memory is still 100.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 12804.35ms. Allocated memory was 125.8MB in the beginning and 715.1MB in the end (delta: 589.3MB). Free memory was 63.9MB in the beginning and 448.9MB in the end (delta: -385.0MB). Peak memory consumption was 329.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 311.63ms. Allocated memory is still 715.1MB. Free memory was 448.9MB in the beginning and 405.9MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.74ms. Allocated memory is still 715.1MB. Free memory was 405.9MB in the beginning and 394.4MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 57697.52ms. Allocated memory was 715.1MB in the beginning and 2.3GB in the end (delta: 1.6GB). Free memory was 394.4MB in the beginning and 910.0MB in the end (delta: -515.6MB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * TraceAbstraction took 6658.99ms. Allocated memory is still 2.3GB. Free memory was 910.0MB in the beginning and 844.6MB in the end (delta: 65.4MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. * Witness Printer took 3.89ms. Allocated memory is still 2.3GB. Free memory is still 844.6MB. 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={-1510:1511}, 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={-1510:1511}, 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={-1510:1511}, 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={-1510:1511}, 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={-1510:1511}, 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={-1510:1511}, 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={1355835689417651968555:1355835689417651968552}, file={1355835689417651968555:1355835689417651968552}, global_state_lock={1494:0}, inode={1355835689417651968536:0}, inode={1355835689417651968536:0}, 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}] [L10721] CALL, EXPR ldv_try_module_get_1(& __this_module) VAL [\old(ldv_module_refcounter)=1, __this_module={-1510:1511}, 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={-1510:1511}, 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={-1510:1511}, module={-1510:1511}, 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={-1510:1511}, 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={-1510:1511}, module={-1510:1511}, 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={-1510:1511}, 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={-1510:1511}, module={-1510:1511}, 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={-1510:1511}, 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={1355835689417651968555:1355835689417651968552}, file={1355835689417651968555:1355835689417651968552}, global_state_lock={1494:0}, inode={1355835689417651968536:0}, inode={1355835689417651968536:0}, 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={1355835689417651968536:1355835689417651968512}, __mptr={1355835689417651968536:0}, __this_module={-1510:1511}, 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={1355835689417651968536:0}, inode={1355835689417651968536:0}, 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}] [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={-1510:1511}, 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={1355835689417651968555:1355835689417651968552}, file={1355835689417651968555:1355835689417651968552}, global_state_lock={1494:0}, inode={1355835689417651968536:0}, inode={1355835689417651968536:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, tmp={1355835689417651968559:-87}, tmp___0=1512, tmp___1=1, usermode_helper={1500:0}] [L10774] RET, EXPR drbd_proc_open(var_group1, var_group2) VAL [__this_module={-1510:1511}, 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={1355835689417651968536:0}, var_group2={1355835689417651968555:1355835689417651968552}] [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={-1510:1511}, 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={1355835689417651968536:0}, var_group2={1355835689417651968555:1355835689417651968552}] [L10815] CALL ldv_check_final_state() [L10153] COND TRUE ldv_module_refcounter != 1 VAL [__this_module={-1510:1511}, 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={-1510:1511}, 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={-1510:1511}, 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: 6.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 108 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 107 mSDsluCounter, 571 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 373 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 88 IncrementalHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 198 mSDtfsCounter, 88 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=3, InterpolantAutomatonStates: 14, 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, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 99 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 [2021-12-06 19:37:34,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa --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-hotfix-svcomp22-839c364 [2021-12-06 19:37:35,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:37:35,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:37:35,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:37:35,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:37:35,722 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:37:35,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:37:35,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:37:35,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:37:35,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:37:35,730 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:37:35,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:37:35,732 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:37:35,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:37:35,734 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:37:35,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:37:35,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:37:35,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:37:35,746 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:37:35,748 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:37:35,750 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:37:35,751 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:37:35,752 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:37:35,752 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:37:35,755 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:37:35,756 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:37:35,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:37:35,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:37:35,757 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:37:35,758 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:37:35,758 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:37:35,759 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:37:35,760 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:37:35,760 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:37:35,761 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:37:35,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:37:35,762 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:37:35,762 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:37:35,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:37:35,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:37:35,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:37:35,765 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-06 19:37:35,786 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:37:35,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:37:35,786 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:37:35,786 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:37:35,787 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 19:37:35,787 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 19:37:35,788 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:37:35,788 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:37:35,788 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:37:35,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:37:35,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:37:35,788 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 19:37:35,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 19:37:35,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 19:37:35,789 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 19:37:35,789 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 19:37:35,789 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 19:37:35,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 19:37:35,789 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:37:35,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 19:37:35,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:37:35,790 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:37:35,790 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 19:37:35,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:37:35,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:37:35,790 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 19:37:35,790 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 19:37:35,790 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 19:37:35,791 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 19:37:35,791 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 19:37:35,791 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 19:37:35,791 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 19:37:35,791 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:37:35,791 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 19:37:35,791 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 [2021-12-06 19:37:36,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:37:36,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:37:36,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:37:36,048 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:37:36,048 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:37:36,049 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2021-12-06 19:37:36,096 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/data/222bef230/7f08836d942c46098c2e3c2fe52123a0/FLAG762c1f7b9 [2021-12-06 19:37:36,969 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:37:36,970 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2021-12-06 19:37:37,065 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/data/222bef230/7f08836d942c46098c2e3c2fe52123a0/FLAG762c1f7b9 [2021-12-06 19:37:37,123 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/data/222bef230/7f08836d942c46098c2e3c2fe52123a0 [2021-12-06 19:37:37,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:37:37,126 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:37:37,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:37:37,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:37:37,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:37:37,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:37:37" (1/1) ... [2021-12-06 19:37:37,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@565a01a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:37:37, skipping insertion in model container [2021-12-06 19:37:37,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:37:37" (1/1) ... [2021-12-06 19:37:37,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:37:37,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:37:40,050 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2021-12-06 19:37:49,034 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:37:49,076 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-06 19:37:49,195 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:37:49,343 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2021-12-06 19:37:50,022 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:37:50,038 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:37:50,199 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2021-12-06 19:37:51,026 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:37:51,259 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:37:51,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:37:51 WrapperNode [2021-12-06 19:37:51,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:37:51,261 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:37:51,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:37:51,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:37:51,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:37:51" (1/1) ... [2021-12-06 19:37:51,449 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:37:51" (1/1) ... [2021-12-06 19:37:51,626 INFO L137 Inliner]: procedures = 910, calls = 20421, calls flagged for inlining = 345, calls inlined = 11, statements flattened = 2894 [2021-12-06 19:37:51,627 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:37:51,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:37:51,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:37:51,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:37:51,635 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:37:51" (1/1) ... [2021-12-06 19:37:51,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:37:51" (1/1) ... [2021-12-06 19:37:51,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:37:51" (1/1) ... [2021-12-06 19:37:51,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:37:51" (1/1) ... [2021-12-06 19:37:51,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:37:51" (1/1) ... [2021-12-06 19:37:51,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:37:51" (1/1) ... [2021-12-06 19:37:51,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:37:51" (1/1) ... [2021-12-06 19:37:51,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:37:51,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:37:51,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:37:51,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:37:51,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:37:51" (1/1) ... [2021-12-06 19:37:51,721 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:37:51,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:37:51,738 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 19:37:51,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 19:37:51,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 19:37:51,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:37:51,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:37:51,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 19:37:51,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-12-06 19:37:51,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-12-06 19:37:51,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-12-06 19:37:51,767 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_proc_open [2021-12-06 19:37:51,767 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_proc_open [2021-12-06 19:37:51,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-06 19:37:51,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-06 19:37:51,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-12-06 19:37:51,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2021-12-06 19:37:51,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2021-12-06 19:37:51,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-06 19:37:51,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-06 19:37:51,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2021-12-06 19:37:51,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2021-12-06 19:37:51,768 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_proc_release [2021-12-06 19:37:51,768 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_proc_release [2021-12-06 19:37:51,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 19:37:52,052 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:37:52,054 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:37:52,225 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 19:39:35,140 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2021-12-06 19:39:35,140 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2021-12-06 19:39:35,191 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:39:35,197 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:39:35,197 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 19:39:35,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:39:35 BoogieIcfgContainer [2021-12-06 19:39:35,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:39:35,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 19:39:35,200 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 19:39:35,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 19:39:35,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:37:37" (1/3) ... [2021-12-06 19:39:35,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fccdfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:39:35, skipping insertion in model container [2021-12-06 19:39:35,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:37:51" (2/3) ... [2021-12-06 19:39:35,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fccdfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:39:35, skipping insertion in model container [2021-12-06 19:39:35,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:39:35" (3/3) ... [2021-12-06 19:39:35,204 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2021-12-06 19:39:35,208 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 19:39:35,209 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 19:39:35,243 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 19:39:35,248 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 [2021-12-06 19:39:35,248 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 19:39:35,260 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) [2021-12-06 19:39:35,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-06 19:39:35,263 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:39:35,263 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:39:35,263 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:39:35,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:39:35,267 INFO L85 PathProgramCache]: Analyzing trace with hash -290783480, now seen corresponding path program 1 times [2021-12-06 19:39:35,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:39:35,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [685353861] [2021-12-06 19:39:35,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:35,286 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:39:35,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:39:35,287 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:39:35,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 19:39:38,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:38,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 5817 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:39:38,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:39:38,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:39:38,882 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:39:38,882 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:39:38,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [685353861] [2021-12-06 19:39:38,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [685353861] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:39:38,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:39:38,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:39:38,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761224062] [2021-12-06 19:39:38,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:39:38,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:39:38,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:39:38,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:39:38,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:39:38,913 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) [2021-12-06 19:39:38,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:39:38,978 INFO L93 Difference]: Finished difference Result 167 states and 216 transitions. [2021-12-06 19:39:38,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:39:38,980 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 [2021-12-06 19:39:38,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:39:38,990 INFO L225 Difference]: With dead ends: 167 [2021-12-06 19:39:38,990 INFO L226 Difference]: Without dead ends: 103 [2021-12-06 19:39:38,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:39:38,998 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 [2021-12-06 19:39:38,999 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] [2021-12-06 19:39:39,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-12-06 19:39:39,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 100. [2021-12-06 19:39:39,034 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) [2021-12-06 19:39:39,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 122 transitions. [2021-12-06 19:39:39,037 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 122 transitions. Word has length 10 [2021-12-06 19:39:39,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:39:39,037 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 122 transitions. [2021-12-06 19:39:39,038 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) [2021-12-06 19:39:39,038 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 122 transitions. [2021-12-06 19:39:39,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-06 19:39:39,039 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:39:39,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:39:39,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 19:39:39,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:39:39,241 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:39:39,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:39:39,244 INFO L85 PathProgramCache]: Analyzing trace with hash 2049937130, now seen corresponding path program 1 times [2021-12-06 19:39:39,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:39:39,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [986499560] [2021-12-06 19:39:39,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:39,262 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:39:39,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:39:39,265 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:39:39,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-06 19:39:42,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:42,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 5842 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:39:42,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:39:42,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:39:42,877 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:39:42,877 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:39:42,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [986499560] [2021-12-06 19:39:42,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [986499560] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:39:42,877 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:39:42,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:39:42,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714984306] [2021-12-06 19:39:42,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:39:42,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:39:42,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:39:42,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:39:42,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:39:42,880 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) [2021-12-06 19:39:42,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:39:42,927 INFO L93 Difference]: Finished difference Result 213 states and 268 transitions. [2021-12-06 19:39:42,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:39:42,927 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 [2021-12-06 19:39:42,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:39:42,928 INFO L225 Difference]: With dead ends: 213 [2021-12-06 19:39:42,929 INFO L226 Difference]: Without dead ends: 115 [2021-12-06 19:39:42,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:39:42,930 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 [2021-12-06 19:39:42,931 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] [2021-12-06 19:39:42,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-12-06 19:39:42,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-12-06 19:39:42,940 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) [2021-12-06 19:39:42,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 142 transitions. [2021-12-06 19:39:42,942 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 142 transitions. Word has length 19 [2021-12-06 19:39:42,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:39:42,942 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 142 transitions. [2021-12-06 19:39:42,942 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) [2021-12-06 19:39:42,942 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 142 transitions. [2021-12-06 19:39:42,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-06 19:39:42,943 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:39:42,943 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] [2021-12-06 19:39:42,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-06 19:39:43,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:39:43,145 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:39:43,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:39:43,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1156991827, now seen corresponding path program 1 times [2021-12-06 19:39:43,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:39:43,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1949159068] [2021-12-06 19:39:43,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:43,165 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:39:43,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:39:43,168 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:39:43,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-06 19:39:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:46,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 5858 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 19:39:46,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:39:46,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:39:46,861 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:39:46,861 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:39:46,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1949159068] [2021-12-06 19:39:46,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1949159068] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:39:46,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:39:46,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:39:46,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104349668] [2021-12-06 19:39:46,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:39:46,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:39:46,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:39:46,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:39:46,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:39:46,864 INFO L87 Difference]: Start difference. First operand 115 states and 142 transitions. Second operand has 6 states, 6 states have (on average 4.0) 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) [2021-12-06 19:39:46,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:39:46,996 INFO L93 Difference]: Finished difference Result 185 states and 229 transitions. [2021-12-06 19:39:46,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:39:46,997 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) 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 [2021-12-06 19:39:46,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:39:46,999 INFO L225 Difference]: With dead ends: 185 [2021-12-06 19:39:46,999 INFO L226 Difference]: Without dead ends: 125 [2021-12-06 19:39:47,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:39:47,001 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 7 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:39:47,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 347 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:39:47,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-12-06 19:39:47,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2021-12-06 19:39:47,011 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) [2021-12-06 19:39:47,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 152 transitions. [2021-12-06 19:39:47,012 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 152 transitions. Word has length 29 [2021-12-06 19:39:47,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:39:47,013 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 152 transitions. [2021-12-06 19:39:47,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) 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) [2021-12-06 19:39:47,013 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 152 transitions. [2021-12-06 19:39:47,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-06 19:39:47,014 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:39:47,014 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] [2021-12-06 19:39:47,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-06 19:39:47,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:39:47,216 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:39:47,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:39:47,218 INFO L85 PathProgramCache]: Analyzing trace with hash -616999541, now seen corresponding path program 1 times [2021-12-06 19:39:47,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:39:47,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1439402010] [2021-12-06 19:39:47,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:47,236 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:39:47,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:39:47,239 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:39:47,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-06 19:41:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:41:44,230 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:43:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:43:35,728 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-12-06 19:43:35,729 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 19:43:35,729 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 19:43:35,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-06 19:43:35,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:43:35,941 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-12-06 19:43:35,948 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 19:43:36,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 07:43:36 BoogieIcfgContainer [2021-12-06 19:43:36,086 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 19:43:36,087 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 19:43:36,087 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 19:43:36,087 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 19:43:36,087 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:39:35" (3/4) ... [2021-12-06 19:43:36,089 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 19:43:36,089 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 19:43:36,090 INFO L158 Benchmark]: Toolchain (without parser) took 358963.67ms. Allocated memory was 81.8MB in the beginning and 2.4GB in the end (delta: 2.3GB). Free memory was 37.9MB in the beginning and 735.0MB in the end (delta: -697.1MB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2021-12-06 19:43:36,090 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory is still 37.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:43:36,091 INFO L158 Benchmark]: CACSL2BoogieTranslator took 14133.32ms. Allocated memory was 81.8MB in the beginning and 958.4MB in the end (delta: 876.6MB). Free memory was 37.6MB in the beginning and 455.9MB in the end (delta: -418.2MB). Peak memory consumption was 461.0MB. Max. memory is 16.1GB. [2021-12-06 19:43:36,091 INFO L158 Benchmark]: Boogie Procedure Inliner took 366.18ms. Allocated memory is still 958.4MB. Free memory was 455.9MB in the beginning and 727.6MB in the end (delta: -271.7MB). Peak memory consumption was 77.5MB. Max. memory is 16.1GB. [2021-12-06 19:43:36,091 INFO L158 Benchmark]: Boogie Preprocessor took 86.55ms. Allocated memory is still 958.4MB. Free memory was 727.6MB in the beginning and 713.9MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-06 19:43:36,091 INFO L158 Benchmark]: RCFGBuilder took 103484.25ms. Allocated memory was 958.4MB in the beginning and 2.4GB in the end (delta: 1.5GB). Free memory was 712.9MB in the beginning and 1.3GB in the end (delta: -571.6MB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2021-12-06 19:43:36,092 INFO L158 Benchmark]: TraceAbstraction took 240886.27ms. Allocated memory is still 2.4GB. Free memory was 1.3GB in the beginning and 735.0MB in the end (delta: 549.5MB). Peak memory consumption was 549.5MB. Max. memory is 16.1GB. [2021-12-06 19:43:36,092 INFO L158 Benchmark]: Witness Printer took 2.76ms. Allocated memory is still 2.4GB. Free memory is still 735.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:43:36,094 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory is still 37.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 14133.32ms. Allocated memory was 81.8MB in the beginning and 958.4MB in the end (delta: 876.6MB). Free memory was 37.6MB in the beginning and 455.9MB in the end (delta: -418.2MB). Peak memory consumption was 461.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 366.18ms. Allocated memory is still 958.4MB. Free memory was 455.9MB in the beginning and 727.6MB in the end (delta: -271.7MB). Peak memory consumption was 77.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.55ms. Allocated memory is still 958.4MB. Free memory was 727.6MB in the beginning and 713.9MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * RCFGBuilder took 103484.25ms. Allocated memory was 958.4MB in the beginning and 2.4GB in the end (delta: 1.5GB). Free memory was 712.9MB in the beginning and 1.3GB in the end (delta: -571.6MB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. * TraceAbstraction took 240886.27ms. Allocated memory is still 2.4GB. Free memory was 1.3GB in the beginning and 735.0MB in the end (delta: 549.5MB). Peak memory consumption was 549.5MB. Max. memory is 16.1GB. * Witness Printer took 2.76ms. Allocated memory is still 2.4GB. Free memory is still 735.0MB. 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={-9187343239835811840:0}, 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={-9187343239835811840:0}, 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=2147483648, usermode_helper={1500:0}] [L10761] tmp = __VERIFIER_nondet_int() [L10763] COND TRUE tmp == 0 VAL [__this_module={-9187343239835811840:0}, 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=2147483648, usermode_helper={1500:0}] [L10772] COND TRUE ldv_s_drbd_proc_fops_file_operations == 0 VAL [__this_module={-9187343239835811840:0}, 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=2147483648, usermode_helper={1500:0}] [L10774] CALL, EXPR drbd_proc_open(var_group1, var_group2) VAL [\old(ldv_module_refcounter)=1, __this_module={-9187343239835811840:0}, 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={-9187343239835811840:0}, 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={1511:1512}, file={1511:1512}, global_state_lock={1494:0}, inode={0:105553384704000}, inode={0:105553384704000}, 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={-9187343239835811840:0}, 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={-9187343239835811840:0}, 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={-9187343239835811840:0}, module={-9187343239835811840:0}, 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={-9187343239835811840:0}, 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={-9187343239835811840:0}, module={-9187343239835811840:0}, 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={-9187343239835811840:0}, 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={-9187343239835811840:0}, module={-9187343239835811840:0}, 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={-9187343239835811840:0}, 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={1511:1512}, file={1511:1512}, global_state_lock={1494:0}, inode={0:105553384704000}, inode={0:105553384704000}, 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={0:-9223266483470147072}, __mptr={0:105553384704000}, __this_module={-9187343239835811840:0}, 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={0:105553384704000}, inode={0:105553384704000}, 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=-2147483648, __this_module={-9187343239835811840:0}, 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={1511:1512}, file={1511:1512}, global_state_lock={1494:0}, inode={0:105553384704000}, inode={0:105553384704000}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, tmp={1099511627778:0}, tmp___0=2147483648, tmp___1=1, usermode_helper={1500:0}] [L10774] RET, EXPR drbd_proc_open(var_group1, var_group2) VAL [__this_module={-9187343239835811840:0}, 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)=-2147483648, 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=2147483648, usermode_helper={1500:0}, var_group1={0:105553384704000}, var_group2={1511:1512}] [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={-9187343239835811840:0}, 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=2147483648, tag_descriptions={1508:0}, tmp=0, tmp___0=2147483648, usermode_helper={1500:0}, var_group1={0:105553384704000}, var_group2={1511:1512}] [L10815] CALL ldv_check_final_state() [L10153] COND TRUE ldv_module_refcounter != 1 VAL [__this_module={-9187343239835811840:0}, 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={-9187343239835811840:0}, 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={-9187343239835811840:0}, 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: 240.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 76 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 75 mSDsluCounter, 592 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 384 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 208 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=3, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 126.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 93 SizeOfPredicates, 2 NumberOfNonLiveVariables, 17517 ConjunctsInSsa, 10 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 [2021-12-06 19:43:36,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6bce30c-8bc5-49ba-9982-e849d1441f21/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample