./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 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/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_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:24:32,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:24:32,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:24:32,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:24:32,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:24:32,895 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:24:32,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:24:32,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:24:32,901 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:24:32,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:24:32,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:24:32,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:24:32,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:24:32,907 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:24:32,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:24:32,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:24:32,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:24:32,925 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:24:32,929 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:24:32,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:24:32,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:24:32,943 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:24:32,944 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:24:32,945 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:24:32,949 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:24:32,949 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:24:32,950 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:24:32,951 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:24:32,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:24:32,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:24:32,957 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:24:32,958 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:24:32,960 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:24:32,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:24:32,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:24:32,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:24:32,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:24:32,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:24:32,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:24:32,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:24:32,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:24:32,968 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 18:24:33,019 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:24:33,020 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:24:33,025 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:24:33,025 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:24:33,026 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:24:33,026 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:24:33,027 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:24:33,028 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:24:33,028 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:24:33,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:24:33,030 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:24:33,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:24:33,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:24:33,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:24:33,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:24:33,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:24:33,032 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:24:33,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:24:33,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:24:33,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:24:33,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:24:33,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:24:33,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:24:33,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:24:33,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:24:33,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:24:33,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:24:33,035 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:24:33,035 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:24:33,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:24:33,036 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_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 [2022-11-18 18:24:33,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:24:33,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:24:33,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:24:33,391 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:24:33,392 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:24:33,393 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2022-11-18 18:24:33,479 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/data/e53f21760/853ec15d058a42e0a77907a9deddce1b/FLAG5ce04cf78 [2022-11-18 18:24:34,919 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:24:34,920 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2022-11-18 18:24:35,011 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/data/e53f21760/853ec15d058a42e0a77907a9deddce1b/FLAG5ce04cf78 [2022-11-18 18:24:35,356 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/data/e53f21760/853ec15d058a42e0a77907a9deddce1b [2022-11-18 18:24:35,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:24:35,360 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:24:35,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:24:35,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:24:35,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:24:35,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:24:35" (1/1) ... [2022-11-18 18:24:35,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55d7a35e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:35, skipping insertion in model container [2022-11-18 18:24:35,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:24:35" (1/1) ... [2022-11-18 18:24:35,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:24:35,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:24:39,205 WARN L234 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_109738a7-92a8-4f0c-9872-922061699f0f/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2022-11-18 18:24:50,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:24:50,123 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:24:50,640 WARN L234 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_109738a7-92a8-4f0c-9872-922061699f0f/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2022-11-18 18:24:52,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:24:52,972 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:24:52,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:52 WrapperNode [2022-11-18 18:24:52,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:24:52,976 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:24:52,977 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:24:52,977 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:24:52,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:52" (1/1) ... [2022-11-18 18:24:53,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:52" (1/1) ... [2022-11-18 18:24:53,645 INFO L138 Inliner]: procedures = 895, calls = 20718, calls flagged for inlining = 343, calls inlined = 11, statements flattened = 3202 [2022-11-18 18:24:53,646 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:24:53,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:24:53,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:24:53,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:24:53,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:52" (1/1) ... [2022-11-18 18:24:53,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:52" (1/1) ... [2022-11-18 18:24:53,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:52" (1/1) ... [2022-11-18 18:24:53,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:52" (1/1) ... [2022-11-18 18:24:53,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:52" (1/1) ... [2022-11-18 18:24:53,759 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:52" (1/1) ... [2022-11-18 18:24:53,771 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:52" (1/1) ... [2022-11-18 18:24:53,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:52" (1/1) ... [2022-11-18 18:24:53,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:24:53,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:24:53,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:24:53,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:24:53,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:52" (1/1) ... [2022-11-18 18:24:53,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:24:53,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:24:53,886 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:24:53,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:24:53,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:24:53,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:24:53,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:24:53,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 18:24:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-18 18:24:53,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-18 18:24:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_proc_open [2022-11-18 18:24:53,951 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_proc_open [2022-11-18 18:24:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2022-11-18 18:24:53,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2022-11-18 18:24:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-18 18:24:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-18 18:24:53,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-18 18:24:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2022-11-18 18:24:53,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2022-11-18 18:24:53,953 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_proc_release [2022-11-18 18:24:53,953 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_proc_release [2022-11-18 18:24:53,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 18:24:53,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:24:54,627 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:24:54,642 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:24:54,907 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-18 18:27:15,918 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2022-11-18 18:27:15,918 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2022-11-18 18:27:15,974 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:27:15,981 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:27:15,982 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 18:27:15,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:27:15 BoogieIcfgContainer [2022-11-18 18:27:15,984 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:27:15,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:27:15,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:27:15,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:27:15,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:24:35" (1/3) ... [2022-11-18 18:27:15,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b6807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:27:15, skipping insertion in model container [2022-11-18 18:27:15,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:52" (2/3) ... [2022-11-18 18:27:15,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b6807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:27:15, skipping insertion in model container [2022-11-18 18:27:15,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:27:15" (3/3) ... [2022-11-18 18:27:15,999 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2022-11-18 18:27:16,018 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:27:16,019 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 18:27:16,120 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:27:16,130 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@14fa1e98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:27:16,131 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 18:27:16,139 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) [2022-11-18 18:27:16,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-18 18:27:16,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:27:16,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:16,151 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:27:16,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:16,159 INFO L85 PathProgramCache]: Analyzing trace with hash 68606922, now seen corresponding path program 1 times [2022-11-18 18:27:16,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:16,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229536629] [2022-11-18 18:27:16,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:16,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:17,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:17,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:17,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:17,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229536629] [2022-11-18 18:27:17,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229536629] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:17,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:17,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:27:17,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482056059] [2022-11-18 18:27:17,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:17,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:27:17,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:17,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:27:17,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:27:17,960 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) [2022-11-18 18:27:18,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:27:18,049 INFO L93 Difference]: Finished difference Result 167 states and 216 transitions. [2022-11-18 18:27:18,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:27:18,052 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 [2022-11-18 18:27:18,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:27:18,064 INFO L225 Difference]: With dead ends: 167 [2022-11-18 18:27:18,064 INFO L226 Difference]: Without dead ends: 103 [2022-11-18 18:27:18,068 INFO L412 NwaCegarLoop]: 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 [2022-11-18 18:27:18,072 INFO L413 NwaCegarLoop]: 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 [2022-11-18 18:27:18,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 132 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:27:18,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-11-18 18:27:18,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 100. [2022-11-18 18:27:18,125 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) [2022-11-18 18:27:18,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 122 transitions. [2022-11-18 18:27:18,130 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 122 transitions. Word has length 10 [2022-11-18 18:27:18,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:27:18,131 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 122 transitions. [2022-11-18 18:27:18,131 INFO L496 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) [2022-11-18 18:27:18,131 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 122 transitions. [2022-11-18 18:27:18,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-18 18:27:18,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:27:18,134 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:18,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:27:18,134 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:27:18,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:18,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1277375410, now seen corresponding path program 1 times [2022-11-18 18:27:18,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:18,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484272545] [2022-11-18 18:27:18,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:18,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:19,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:19,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:19,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484272545] [2022-11-18 18:27:19,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484272545] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:19,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:19,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:27:19,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674857816] [2022-11-18 18:27:19,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:19,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:27:19,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:19,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:27:19,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:27:19,280 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) [2022-11-18 18:27:19,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:27:19,325 INFO L93 Difference]: Finished difference Result 213 states and 268 transitions. [2022-11-18 18:27:19,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:27:19,326 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 [2022-11-18 18:27:19,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:27:19,328 INFO L225 Difference]: With dead ends: 213 [2022-11-18 18:27:19,329 INFO L226 Difference]: Without dead ends: 115 [2022-11-18 18:27:19,330 INFO L412 NwaCegarLoop]: 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 [2022-11-18 18:27:19,331 INFO L413 NwaCegarLoop]: 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 [2022-11-18 18:27:19,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 113 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:27:19,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-11-18 18:27:19,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2022-11-18 18:27:19,347 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) [2022-11-18 18:27:19,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 142 transitions. [2022-11-18 18:27:19,350 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 142 transitions. Word has length 19 [2022-11-18 18:27:19,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:27:19,351 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 142 transitions. [2022-11-18 18:27:19,351 INFO L496 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) [2022-11-18 18:27:19,351 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 142 transitions. [2022-11-18 18:27:19,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 18:27:19,352 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:27:19,353 INFO L195 NwaCegarLoop]: 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] [2022-11-18 18:27:19,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:27:19,353 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:27:19,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:19,354 INFO L85 PathProgramCache]: Analyzing trace with hash 359859625, now seen corresponding path program 1 times [2022-11-18 18:27:19,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:19,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944997922] [2022-11-18 18:27:19,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:19,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:19,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:20,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:27:20,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:21,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:27:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:21,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:21,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:21,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944997922] [2022-11-18 18:27:21,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944997922] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:21,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:21,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:27:21,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948419860] [2022-11-18 18:27:21,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:21,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:27:21,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:21,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:27:21,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:27:21,137 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) [2022-11-18 18:27:23,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:27:23,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:27:23,591 INFO L93 Difference]: Finished difference Result 193 states and 237 transitions. [2022-11-18 18:27:23,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:27:23,593 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 [2022-11-18 18:27:23,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:27:23,599 INFO L225 Difference]: With dead ends: 193 [2022-11-18 18:27:23,601 INFO L226 Difference]: Without dead ends: 133 [2022-11-18 18:27:23,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:27:23,605 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 35 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-18 18:27:23,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 340 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 72 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-11-18 18:27:23,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-11-18 18:27:23,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 125. [2022-11-18 18:27:23,640 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) [2022-11-18 18:27:23,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 152 transitions. [2022-11-18 18:27:23,649 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 152 transitions. Word has length 29 [2022-11-18 18:27:23,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:27:23,650 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 152 transitions. [2022-11-18 18:27:23,650 INFO L496 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) [2022-11-18 18:27:23,651 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 152 transitions. [2022-11-18 18:27:23,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-18 18:27:23,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:27:23,654 INFO L195 NwaCegarLoop]: 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] [2022-11-18 18:27:23,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:27:23,655 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:27:23,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:23,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1823952005, now seen corresponding path program 1 times [2022-11-18 18:27:23,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:23,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975145782] [2022-11-18 18:27:23,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:23,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:27:26,165 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:27:28,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:27:28,485 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:27:28,486 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 18:27:28,487 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 18:27:28,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:27:28,494 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-18 18:27:28,500 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 18:27:28,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:27:28 BoogieIcfgContainer [2022-11-18 18:27:28,693 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 18:27:28,694 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 18:27:28,694 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 18:27:28,694 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 18:27:28,695 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:27:15" (3/4) ... [2022-11-18 18:27:28,699 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 18:27:28,699 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 18:27:28,703 INFO L158 Benchmark]: Toolchain (without parser) took 173339.89ms. Allocated memory was 109.1MB in the beginning and 882.9MB in the end (delta: 773.8MB). Free memory was 48.4MB in the beginning and 513.7MB in the end (delta: -465.3MB). Peak memory consumption was 308.7MB. Max. memory is 16.1GB. [2022-11-18 18:27:28,704 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 109.1MB. Free memory was 60.8MB in the beginning and 60.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:27:28,705 INFO L158 Benchmark]: CACSL2BoogieTranslator took 17607.31ms. Allocated memory was 109.1MB in the beginning and 474.0MB in the end (delta: 364.9MB). Free memory was 48.4MB in the beginning and 248.8MB in the end (delta: -200.5MB). Peak memory consumption was 290.5MB. Max. memory is 16.1GB. [2022-11-18 18:27:28,706 INFO L158 Benchmark]: Boogie Procedure Inliner took 670.39ms. Allocated memory is still 474.0MB. Free memory was 248.8MB in the beginning and 203.7MB in the end (delta: 45.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-11-18 18:27:28,706 INFO L158 Benchmark]: Boogie Preprocessor took 189.12ms. Allocated memory is still 474.0MB. Free memory was 203.7MB in the beginning and 190.1MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-18 18:27:28,707 INFO L158 Benchmark]: RCFGBuilder took 142147.70ms. Allocated memory was 474.0MB in the beginning and 882.9MB in the end (delta: 408.9MB). Free memory was 190.1MB in the beginning and 378.4MB in the end (delta: -188.3MB). Peak memory consumption was 479.2MB. Max. memory is 16.1GB. [2022-11-18 18:27:28,707 INFO L158 Benchmark]: TraceAbstraction took 12702.73ms. Allocated memory is still 882.9MB. Free memory was 377.3MB in the beginning and 513.7MB in the end (delta: -136.3MB). Peak memory consumption was 142.5MB. Max. memory is 16.1GB. [2022-11-18 18:27:28,707 INFO L158 Benchmark]: Witness Printer took 5.74ms. Allocated memory is still 882.9MB. Free memory is still 513.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:27:28,716 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 109.1MB. Free memory was 60.8MB in the beginning and 60.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 17607.31ms. Allocated memory was 109.1MB in the beginning and 474.0MB in the end (delta: 364.9MB). Free memory was 48.4MB in the beginning and 248.8MB in the end (delta: -200.5MB). Peak memory consumption was 290.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 670.39ms. Allocated memory is still 474.0MB. Free memory was 248.8MB in the beginning and 203.7MB in the end (delta: 45.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 189.12ms. Allocated memory is still 474.0MB. Free memory was 203.7MB in the beginning and 190.1MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * RCFGBuilder took 142147.70ms. Allocated memory was 474.0MB in the beginning and 882.9MB in the end (delta: 408.9MB). Free memory was 190.1MB in the beginning and 378.4MB in the end (delta: -188.3MB). Peak memory consumption was 479.2MB. Max. memory is 16.1GB. * TraceAbstraction took 12702.73ms. Allocated memory is still 882.9MB. Free memory was 377.3MB in the beginning and 513.7MB in the end (delta: -136.3MB). Peak memory consumption was 142.5MB. Max. memory is 16.1GB. * Witness Printer took 5.74ms. Allocated memory is still 882.9MB. Free memory is still 513.7MB. 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 30387. Possible FailurePath: [L29657] struct kmem_cache *drbd_request_cache ; [L10081] int LDV_IN_INTERRUPT ; [L29666] wait_queue_head_t drbd_pp_wait ; [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}; [L29586] int disable_sendpage ; [L10212] int proc_details ; [L29662] mempool_t *drbd_ee_mempool ; [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}; [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}}; [L24428] int allow_oos ; [L29659] struct kmem_cache *drbd_bm_ext_cache ; [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'}; [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}}; [L7001] int enable_faults ; [L7002] int fault_rate ; [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"}; [L30378] unsigned int cn_idx = 8U; [L37476-L37479] static char const *drbd_disk_s_names[9U] = { "Diskless", "Attaching", "Failed", "Negotiating", "Inconsistent", "Outdated", "DUnknown", "Consistent", "UpToDate"}; [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"}; [L37894] static char *drbd_m_holder = (char *)"Hands off! this is DRBD\'s meta data device."; [L29661] mempool_t *drbd_request_mempool ; [L30377] unsigned int minor_count = 32U; [L48229] static atomic_t drbd_nl_seq = {2}; [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}; [L36025] static struct notifier_block drbd_notifier = {& drbd_notify_sys, (struct notifier_block *)0, 0}; [L15096] struct page *drbd_pp_pool ; [L15098] int drbd_pp_vacant ; [L29660] struct kmem_cache *drbd_al_ext_cache ; [L29658] struct kmem_cache *drbd_ee_cache ; [L37475] static char const *drbd_role_s_names[3U] = { "Unknown", "Primary", "Secondary"}; [L29591] int fault_devs ; [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}}; [L15097] spinlock_t drbd_pp_lock ; [L10089] int ldv_module_refcounter = 1; [L11265] rwlock_t global_state_lock ; [L29593] struct drbd_conf **minor_table ; [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 ; VAL [__this_module={-1510:1511}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [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={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, 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={1507:0}, tmp___0=-2, usermode_helper={1497:0}] [L10761] tmp = __VERIFIER_nondet_int() [L10763] COND TRUE tmp == 0 VAL [__this_module={-1510:1511}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, 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={1507:0}, tmp=0, tmp___0=-2, usermode_helper={1497:0}] [L10772] COND TRUE ldv_s_drbd_proc_fops_file_operations == 0 VAL [__this_module={-1510:1511}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, 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={1507:0}, tmp=0, tmp___0=-2, usermode_helper={1497:0}] [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={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [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={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, file={1152921504606846984:1152921504606847000}, file={1152921504606846984:1152921504606847000}, global_state_lock={1509:0}, inode={1152921504606846978:-1355835689417651968512}, inode={1152921504606846978:-1355835689417651968512}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [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={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [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={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, 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={1507:0}, usermode_helper={1497:0}] [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={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, 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={1507:0}, usermode_helper={1497:0}] [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={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, 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={1507:0}, tmp=1, usermode_helper={1497:0}] [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={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, file={1152921504606846984:1152921504606847000}, file={1152921504606846984:1152921504606847000}, global_state_lock={1509:0}, inode={1152921504606846978:-1355835689417651968512}, inode={1152921504606846978:-1355835689417651968512}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_try_module_get_1(& __this_module)=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [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={1152921504606846978:0}, __mptr={1152921504606846978:-1355835689417651968512}, __this_module={-1510:1511}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, inode={1152921504606846978:-1355835689417651968512}, inode={1152921504606846978:-1355835689417651968512}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [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={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, file={1152921504606846984:1152921504606847000}, file={1152921504606846984:1152921504606847000}, global_state_lock={1509:0}, inode={1152921504606846978:-1355835689417651968512}, inode={1152921504606846978:-1355835689417651968512}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, tmp={1152921504606847004:-87}, tmp___0=1512, tmp___1=1, usermode_helper={1497:0}] [L10774] RET, EXPR drbd_proc_open(var_group1, var_group2) VAL [__this_module={-1510:1511}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_proc_open(var_group1, var_group2)=1512, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, 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={1507:0}, tmp=0, tmp___0=-2, usermode_helper={1497:0}, var_group1={1152921504606846978:-1355835689417651968512}, var_group2={1152921504606846984:1152921504606847000}] [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={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, 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={1507:0}, tmp=0, tmp___0=-2, usermode_helper={1497:0}, var_group1={1152921504606846978:-1355835689417651968512}, var_group2={1152921504606846984:1152921504606847000}] [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={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [L10155] CALL ldv_blast_assert() VAL [__this_module={-1510:1511}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [L10085] reach_error() VAL [__this_module={-1510:1511}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 104 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 103 mSDsluCounter, 585 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 385 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 89 IncrementalHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 200 mSDtfsCounter, 89 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=3, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 97 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-18 18:27:28,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/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_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:27:31,291 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:27:31,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:27:31,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:27:31,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:27:31,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:27:31,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:27:31,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:27:31,322 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:27:31,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:27:31,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:27:31,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:27:31,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:27:31,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:27:31,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:27:31,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:27:31,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:27:31,332 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:27:31,334 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:27:31,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:27:31,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:27:31,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:27:31,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:27:31,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:27:31,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:27:31,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:27:31,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:27:31,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:27:31,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:27:31,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:27:31,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:27:31,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:27:31,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:27:31,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:27:31,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:27:31,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:27:31,355 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:27:31,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:27:31,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:27:31,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:27:31,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:27:31,359 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-18 18:27:31,382 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:27:31,382 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:27:31,383 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:27:31,383 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:27:31,384 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:27:31,384 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:27:31,385 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:27:31,385 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:27:31,385 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:27:31,386 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:27:31,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:27:31,386 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:27:31,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:27:31,387 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:27:31,387 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 18:27:31,388 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 18:27:31,388 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 18:27:31,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:27:31,388 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:27:31,389 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:27:31,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:27:31,389 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:27:31,390 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:27:31,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:27:31,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:27:31,391 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:27:31,391 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:27:31,391 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 18:27:31,392 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 18:27:31,392 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:27:31,392 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:27:31,392 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:27:31,393 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 18:27:31,393 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_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 [2022-11-18 18:27:31,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:27:31,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:27:31,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:27:31,870 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:27:31,873 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:27:31,881 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2022-11-18 18:27:31,958 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/data/87b08f319/cf7be125274f4849aa41dc234e255fa6/FLAG69c2cd817 [2022-11-18 18:27:33,464 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:27:33,465 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2022-11-18 18:27:33,569 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/data/87b08f319/cf7be125274f4849aa41dc234e255fa6/FLAG69c2cd817 [2022-11-18 18:27:33,816 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/data/87b08f319/cf7be125274f4849aa41dc234e255fa6 [2022-11-18 18:27:33,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:27:33,821 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:27:33,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:27:33,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:27:33,828 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:27:33,829 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:27:33" (1/1) ... [2022-11-18 18:27:33,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33313917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:33, skipping insertion in model container [2022-11-18 18:27:33,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:27:33" (1/1) ... [2022-11-18 18:27:33,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:27:34,340 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:27:38,449 WARN L234 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_109738a7-92a8-4f0c-9872-922061699f0f/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2022-11-18 18:27:50,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:27:50,191 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-18 18:27:50,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:27:50,715 WARN L234 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_109738a7-92a8-4f0c-9872-922061699f0f/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2022-11-18 18:27:51,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:27:52,028 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:27:52,533 WARN L234 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_109738a7-92a8-4f0c-9872-922061699f0f/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2022-11-18 18:27:54,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:27:54,866 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:27:54,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:54 WrapperNode [2022-11-18 18:27:54,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:27:54,869 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:27:54,869 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:27:54,870 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:27:54,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:54" (1/1) ... [2022-11-18 18:27:55,361 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:54" (1/1) ... [2022-11-18 18:27:55,585 INFO L138 Inliner]: procedures = 910, calls = 20717, calls flagged for inlining = 345, calls inlined = 11, statements flattened = 3190 [2022-11-18 18:27:55,586 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:27:55,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:27:55,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:27:55,587 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:27:55,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:54" (1/1) ... [2022-11-18 18:27:55,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:54" (1/1) ... [2022-11-18 18:27:55,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:54" (1/1) ... [2022-11-18 18:27:55,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:54" (1/1) ... [2022-11-18 18:27:55,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:54" (1/1) ... [2022-11-18 18:27:55,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:54" (1/1) ... [2022-11-18 18:27:55,720 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:54" (1/1) ... [2022-11-18 18:27:55,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:54" (1/1) ... [2022-11-18 18:27:55,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:27:55,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:27:55,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:27:55,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:27:55,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:54" (1/1) ... [2022-11-18 18:27:55,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:27:55,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:27:55,805 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:27:55,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:27:55,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:27:55,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:27:55,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:27:55,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 18:27:55,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-18 18:27:55,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-18 18:27:55,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-18 18:27:55,860 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_proc_open [2022-11-18 18:27:55,860 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_proc_open [2022-11-18 18:27:55,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 18:27:55,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-18 18:27:55,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-18 18:27:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2022-11-18 18:27:55,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2022-11-18 18:27:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-18 18:27:55,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-18 18:27:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2022-11-18 18:27:55,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2022-11-18 18:27:55,862 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_proc_release [2022-11-18 18:27:55,862 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_proc_release [2022-11-18 18:27:55,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 18:27:56,540 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:27:56,543 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:27:56,840 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-18 18:35:40,644 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2022-11-18 18:35:40,645 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2022-11-18 18:35:40,711 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:35:40,719 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:35:40,719 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 18:35:40,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:35:40 BoogieIcfgContainer [2022-11-18 18:35:40,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:35:40,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:35:40,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:35:40,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:35:40,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:27:33" (1/3) ... [2022-11-18 18:35:40,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df8116a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:35:40, skipping insertion in model container [2022-11-18 18:35:40,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:54" (2/3) ... [2022-11-18 18:35:40,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df8116a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:35:40, skipping insertion in model container [2022-11-18 18:35:40,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:35:40" (3/3) ... [2022-11-18 18:35:40,730 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2022-11-18 18:35:40,751 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:35:40,751 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 18:35:40,813 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:35:40,820 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2ba12ab3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:35:40,820 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 18:35:40,824 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) [2022-11-18 18:35:40,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-18 18:35:40,831 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:35:40,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:35:40,833 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:35:40,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:35:40,839 INFO L85 PathProgramCache]: Analyzing trace with hash -290783480, now seen corresponding path program 1 times [2022-11-18 18:35:40,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:35:40,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1972390719] [2022-11-18 18:35:40,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:40,870 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:35:40,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:35:40,880 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:35:40,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-18 18:35:45,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:45,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 6125 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:35:45,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:35:45,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:35:45,474 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:35:45,475 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:35:45,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1972390719] [2022-11-18 18:35:45,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1972390719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:35:45,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:35:45,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:35:45,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793630551] [2022-11-18 18:35:45,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:35:45,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:35:45,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:35:45,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:35:45,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:35:45,516 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) [2022-11-18 18:35:45,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:35:45,641 INFO L93 Difference]: Finished difference Result 167 states and 216 transitions. [2022-11-18 18:35:45,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:35:45,644 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 [2022-11-18 18:35:45,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:35:45,658 INFO L225 Difference]: With dead ends: 167 [2022-11-18 18:35:45,659 INFO L226 Difference]: Without dead ends: 103 [2022-11-18 18:35:45,663 INFO L412 NwaCegarLoop]: 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 [2022-11-18 18:35:45,674 INFO L413 NwaCegarLoop]: 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:35:45,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 132 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:35:45,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-11-18 18:35:45,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 100. [2022-11-18 18:35:45,740 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) [2022-11-18 18:35:45,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 122 transitions. [2022-11-18 18:35:45,754 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 122 transitions. Word has length 10 [2022-11-18 18:35:45,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:35:45,754 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 122 transitions. [2022-11-18 18:35:45,755 INFO L496 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) [2022-11-18 18:35:45,756 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 122 transitions. [2022-11-18 18:35:45,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-18 18:35:45,758 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:35:45,759 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:35:45,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-18 18:35:45,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:35:45,972 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:35:45,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:35:45,973 INFO L85 PathProgramCache]: Analyzing trace with hash 2049937130, now seen corresponding path program 1 times [2022-11-18 18:35:45,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:35:45,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1187629187] [2022-11-18 18:35:45,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:45,991 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:35:45,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:35:45,995 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:35:46,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-18 18:35:50,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:50,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 6150 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:35:50,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:35:50,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:35:50,325 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:35:50,325 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:35:50,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1187629187] [2022-11-18 18:35:50,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1187629187] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:35:50,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:35:50,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:35:50,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920410178] [2022-11-18 18:35:50,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:35:50,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:35:50,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:35:50,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:35:50,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:35:50,329 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) [2022-11-18 18:35:50,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:35:50,408 INFO L93 Difference]: Finished difference Result 213 states and 268 transitions. [2022-11-18 18:35:50,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:35:50,409 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 [2022-11-18 18:35:50,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:35:50,410 INFO L225 Difference]: With dead ends: 213 [2022-11-18 18:35:50,410 INFO L226 Difference]: Without dead ends: 115 [2022-11-18 18:35:50,411 INFO L412 NwaCegarLoop]: 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 [2022-11-18 18:35:50,412 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 10 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:35:50,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 113 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:35:50,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-11-18 18:35:50,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2022-11-18 18:35:50,428 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) [2022-11-18 18:35:50,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 142 transitions. [2022-11-18 18:35:50,433 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 142 transitions. Word has length 19 [2022-11-18 18:35:50,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:35:50,434 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 142 transitions. [2022-11-18 18:35:50,434 INFO L496 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) [2022-11-18 18:35:50,434 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 142 transitions. [2022-11-18 18:35:50,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 18:35:50,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:35:50,437 INFO L195 NwaCegarLoop]: 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] [2022-11-18 18:35:50,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-18 18:35:50,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:35:50,656 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:35:50,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:35:50,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1156991827, now seen corresponding path program 1 times [2022-11-18 18:35:50,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:35:50,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1480140865] [2022-11-18 18:35:50,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:50,669 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:35:50,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:35:50,670 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:35:50,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-18 18:35:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:54,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 6166 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 18:35:54,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:35:55,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:35:55,138 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:35:55,139 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:35:55,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1480140865] [2022-11-18 18:35:55,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1480140865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:35:55,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:35:55,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:35:55,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913848485] [2022-11-18 18:35:55,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:35:55,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:35:55,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:35:55,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:35:55,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:35:55,141 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) [2022-11-18 18:35:55,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:35:55,330 INFO L93 Difference]: Finished difference Result 185 states and 229 transitions. [2022-11-18 18:35:55,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:35:55,332 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 [2022-11-18 18:35:55,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:35:55,334 INFO L225 Difference]: With dead ends: 185 [2022-11-18 18:35:55,334 INFO L226 Difference]: Without dead ends: 125 [2022-11-18 18:35:55,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:35:55,336 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 7 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:35:55,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 346 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:35:55,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-11-18 18:35:55,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2022-11-18 18:35:55,350 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) [2022-11-18 18:35:55,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 152 transitions. [2022-11-18 18:35:55,352 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 152 transitions. Word has length 29 [2022-11-18 18:35:55,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:35:55,352 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 152 transitions. [2022-11-18 18:35:55,353 INFO L496 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) [2022-11-18 18:35:55,353 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 152 transitions. [2022-11-18 18:35:55,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-18 18:35:55,354 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:35:55,354 INFO L195 NwaCegarLoop]: 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] [2022-11-18 18:35:55,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-18 18:35:55,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:35:55,568 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:35:55,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:35:55,568 INFO L85 PathProgramCache]: Analyzing trace with hash -616999541, now seen corresponding path program 1 times [2022-11-18 18:35:55,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:35:55,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [81709038] [2022-11-18 18:35:55,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:55,578 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:35:55,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:35:55,579 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:35:55,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-18 18:37:36,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:37:36,123 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:38:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:39:06,381 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-18 18:39:06,382 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 18:39:06,383 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 18:39:06,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-18 18:39:06,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:06,596 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-18 18:39:06,602 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 18:39:06,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:39:06 BoogieIcfgContainer [2022-11-18 18:39:06,777 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 18:39:06,778 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 18:39:06,778 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 18:39:06,778 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 18:39:06,779 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:35:40" (3/4) ... [2022-11-18 18:39:06,782 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 18:39:06,782 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 18:39:06,784 INFO L158 Benchmark]: Toolchain (without parser) took 692962.18ms. Allocated memory was 75.5MB in the beginning and 2.2GB in the end (delta: 2.1GB). Free memory was 33.9MB in the beginning and 1.6GB in the end (delta: -1.6GB). Peak memory consumption was 502.6MB. Max. memory is 16.1GB. [2022-11-18 18:39:06,784 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 75.5MB. Free memory is still 57.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:39:06,785 INFO L158 Benchmark]: CACSL2BoogieTranslator took 21045.98ms. Allocated memory was 75.5MB in the beginning and 966.8MB in the end (delta: 891.3MB). Free memory was 33.7MB in the beginning and 729.1MB in the end (delta: -695.4MB). Peak memory consumption was 374.3MB. Max. memory is 16.1GB. [2022-11-18 18:39:06,786 INFO L158 Benchmark]: Boogie Procedure Inliner took 717.03ms. Allocated memory is still 966.8MB. Free memory was 729.1MB in the beginning and 682.9MB in the end (delta: 46.1MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-11-18 18:39:06,786 INFO L158 Benchmark]: Boogie Preprocessor took 163.46ms. Allocated memory is still 966.8MB. Free memory was 682.9MB in the beginning and 667.2MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-18 18:39:06,789 INFO L158 Benchmark]: RCFGBuilder took 464970.64ms. Allocated memory was 966.8MB in the beginning and 2.2GB in the end (delta: 1.2GB). Free memory was 667.2MB in the beginning and 1.5GB in the end (delta: -790.7MB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2022-11-18 18:39:06,790 INFO L158 Benchmark]: TraceAbstraction took 206054.09ms. Allocated memory is still 2.2GB. Free memory was 1.5GB in the beginning and 1.6GB in the end (delta: -171.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:39:06,792 INFO L158 Benchmark]: Witness Printer took 4.24ms. Allocated memory is still 2.2GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:39:06,796 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 75.5MB. Free memory is still 57.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 21045.98ms. Allocated memory was 75.5MB in the beginning and 966.8MB in the end (delta: 891.3MB). Free memory was 33.7MB in the beginning and 729.1MB in the end (delta: -695.4MB). Peak memory consumption was 374.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 717.03ms. Allocated memory is still 966.8MB. Free memory was 729.1MB in the beginning and 682.9MB in the end (delta: 46.1MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 163.46ms. Allocated memory is still 966.8MB. Free memory was 682.9MB in the beginning and 667.2MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * RCFGBuilder took 464970.64ms. Allocated memory was 966.8MB in the beginning and 2.2GB in the end (delta: 1.2GB). Free memory was 667.2MB in the beginning and 1.5GB in the end (delta: -790.7MB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * TraceAbstraction took 206054.09ms. Allocated memory is still 2.2GB. Free memory was 1.5GB in the beginning and 1.6GB in the end (delta: -171.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.24ms. Allocated memory is still 2.2GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 1.0MB). 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 30387. Possible FailurePath: [L29657] struct kmem_cache *drbd_request_cache ; [L10081] int LDV_IN_INTERRUPT ; [L29666] wait_queue_head_t drbd_pp_wait ; [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}; [L29586] int disable_sendpage ; [L10212] int proc_details ; [L15095] mempool_t *drbd_ee_mempool ; [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}; [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}}; [L24428] int allow_oos ; [L29659] struct kmem_cache *drbd_bm_ext_cache ; [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'}; [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}}; [L7001] int enable_faults ; [L7002] int fault_rate ; [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"}; [L30378] unsigned int cn_idx = 8U; [L37476-L37479] static char const *drbd_disk_s_names[9U] = { "Diskless", "Attaching", "Failed", "Negotiating", "Inconsistent", "Outdated", "DUnknown", "Consistent", "UpToDate"}; [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"}; [L37894] static char *drbd_m_holder = (char *)"Hands off! this is DRBD\'s meta data device."; [L24430] mempool_t *drbd_request_mempool ; [L30377] unsigned int minor_count = 32U; [L48229] static atomic_t drbd_nl_seq = {2}; [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}; [L36025] static struct notifier_block drbd_notifier = {& drbd_notify_sys, (struct notifier_block *)0, 0}; [L29663] struct page *drbd_pp_pool ; [L29665] int drbd_pp_vacant ; [L29660] struct kmem_cache *drbd_al_ext_cache ; [L29658] struct kmem_cache *drbd_ee_cache ; [L37475] static char const *drbd_role_s_names[3U] = { "Unknown", "Primary", "Secondary"}; [L29591] int fault_devs ; [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}}; [L29664] spinlock_t drbd_pp_lock ; [L10089] int ldv_module_refcounter = 1; [L11265] rwlock_t global_state_lock ; [L29593] struct drbd_conf **minor_table ; [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 ; VAL [__this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [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={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, 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={1507:0}, tmp___0=2147483648, usermode_helper={1497:0}] [L10761] tmp = __VERIFIER_nondet_int() [L10763] COND TRUE tmp == 0 VAL [__this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, 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={1507:0}, tmp=0, tmp___0=2147483648, usermode_helper={1497:0}] [L10772] COND TRUE ldv_s_drbd_proc_fops_file_operations == 0 VAL [__this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, 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={1507:0}, tmp=0, tmp___0=2147483648, usermode_helper={1497:0}] [L10774] CALL, EXPR drbd_proc_open(var_group1, var_group2) VAL [\old(ldv_module_refcounter)=1, __this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [L10716] struct proc_dir_entry *tmp ; [L10717] int tmp___0 ; [L10718] int tmp___1 ; VAL [\old(ldv_module_refcounter)=1, __this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, file={1511:1512}, file={1511:1512}, global_state_lock={1509:0}, inode={2251799813685248:18155135997837312}, inode={2251799813685248:18155135997837312}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [L10721] CALL, EXPR ldv_try_module_get_1(& __this_module) VAL [\old(ldv_module_refcounter)=1, __this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [L10821] int tmp ; [L10824] CALL, EXPR ldv_try_module_get(module) [L10101] int module_get_succeeded ; VAL [\old(ldv_module_refcounter)=1, __this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, module={0:-9223372036854775808}, module={0:-9223372036854775808}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [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={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, module={0:-9223372036854775808}, module={0:-9223372036854775808}, module_get_succeeded=1, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [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={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, module={0:-9223372036854775808}, module={0:-9223372036854775808}, proc_details=0, tag_descriptions={1507:0}, tmp=1, usermode_helper={1497:0}] [L10721] RET, EXPR ldv_try_module_get_1(& __this_module) VAL [\old(ldv_module_refcounter)=1, __this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, file={1511:1512}, file={1511:1512}, global_state_lock={1509:0}, inode={2251799813685248:18155135997837312}, inode={2251799813685248:18155135997837312}, 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={1507:0}, usermode_helper={1497:0}] [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={2251799813685248:-9205216900857013760}, __mptr={2251799813685248:18155135997837312}, __this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, inode={2251799813685248:18155135997837312}, inode={2251799813685248:18155135997837312}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [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=-2147287040, __this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, file={1511:1512}, file={1511:1512}, global_state_lock={1509:0}, inode={2251799813685248:18155135997837312}, inode={2251799813685248:18155135997837312}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, tmp={17592186044416:1099511693312}, tmp___0=2147680256, tmp___1=1, usermode_helper={1497:0}] [L10774] RET, EXPR drbd_proc_open(var_group1, var_group2) VAL [__this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_proc_open(var_group1, var_group2)=-2147287040, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, 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={1507:0}, tmp=0, tmp___0=2147483648, usermode_helper={1497:0}, var_group1={2251799813685248:18155135997837312}, 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={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, 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=2147680256, tag_descriptions={1507:0}, tmp=0, tmp___0=2147483648, usermode_helper={1497:0}, var_group1={2251799813685248:18155135997837312}, var_group2={1511:1512}] [L10815] CALL ldv_check_final_state() [L10153] COND TRUE ldv_module_refcounter != 1 VAL [__this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [L10155] CALL ldv_blast_assert() VAL [__this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [L10085] reach_error() VAL [__this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 205.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 76 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 75 mSDsluCounter, 591 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 383 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 208 mSDtfsCounter, 39 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, 0.2s 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: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 111.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 93 SizeOfPredicates, 2 NumberOfNonLiveVariables, 18441 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 [2022-11-18 18:39:06,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109738a7-92a8-4f0c-9872-922061699f0f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample