./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 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/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_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc --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-5e519f3 [2022-11-02 20:05:23,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:05:23,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:05:23,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:05:23,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:05:23,309 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:05:23,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:05:23,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:05:23,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:05:23,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:05:23,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:05:23,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:05:23,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:05:23,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:05:23,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:05:23,338 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:05:23,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:05:23,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:05:23,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:05:23,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:05:23,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:05:23,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:05:23,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:05:23,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:05:23,370 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:05:23,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:05:23,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:05:23,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:05:23,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:05:23,380 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:05:23,381 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:05:23,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:05:23,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:05:23,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:05:23,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:05:23,388 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:05:23,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:05:23,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:05:23,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:05:23,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:05:23,391 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:05:23,392 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:05:23,419 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:05:23,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:05:23,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:05:23,420 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:05:23,421 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:05:23,421 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:05:23,422 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:05:23,422 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:05:23,422 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:05:23,423 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:05:23,423 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:05:23,423 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:05:23,424 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:05:23,424 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:05:23,424 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:05:23,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:05:23,425 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:05:23,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:05:23,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:05:23,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:05:23,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:05:23,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:05:23,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:05:23,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:05:23,427 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:05:23,427 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:05:23,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:05:23,428 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:05:23,428 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:05:23,428 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:05:23,428 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_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 [2022-11-02 20:05:23,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:05:23,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:05:23,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:05:23,868 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:05:23,869 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:05:23,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2022-11-02 20:05:23,988 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/data/0a2f28c3d/54bc91df14804ecb8bf297d5f753e99d/FLAG7bb3c9d60 [2022-11-02 20:05:25,944 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:05:25,945 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2022-11-02 20:05:26,078 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/data/0a2f28c3d/54bc91df14804ecb8bf297d5f753e99d/FLAG7bb3c9d60 [2022-11-02 20:05:26,471 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/data/0a2f28c3d/54bc91df14804ecb8bf297d5f753e99d [2022-11-02 20:05:26,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:05:26,480 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:05:26,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:05:26,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:05:26,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:05:26,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:05:26" (1/1) ... [2022-11-02 20:05:26,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b3c117c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:26, skipping insertion in model container [2022-11-02 20:05:26,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:05:26" (1/1) ... [2022-11-02 20:05:26,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:05:27,020 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:05:31,830 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2022-11-02 20:05:44,983 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:05:45,053 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:05:45,471 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2022-11-02 20:05:47,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:05:48,035 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:05:48,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:48 WrapperNode [2022-11-02 20:05:48,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:05:48,040 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:05:48,040 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:05:48,041 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:05:48,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:48" (1/1) ... [2022-11-02 20:05:48,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:48" (1/1) ... [2022-11-02 20:05:48,980 INFO L138 Inliner]: procedures = 895, calls = 20422, calls flagged for inlining = 343, calls inlined = 11, statements flattened = 2906 [2022-11-02 20:05:48,981 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:05:48,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:05:48,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:05:48,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:05:48,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:48" (1/1) ... [2022-11-02 20:05:48,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:48" (1/1) ... [2022-11-02 20:05:49,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:48" (1/1) ... [2022-11-02 20:05:49,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:48" (1/1) ... [2022-11-02 20:05:49,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:48" (1/1) ... [2022-11-02 20:05:49,123 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:48" (1/1) ... [2022-11-02 20:05:49,138 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:48" (1/1) ... [2022-11-02 20:05:49,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:48" (1/1) ... [2022-11-02 20:05:49,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:05:49,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:05:49,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:05:49,221 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:05:49,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:48" (1/1) ... [2022-11-02 20:05:49,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:05:49,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:05:49,305 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:05:49,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:05:49,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:05:49,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:05:49,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:05:49,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:05:49,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-02 20:05:49,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-02 20:05:49,458 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_proc_open [2022-11-02 20:05:49,458 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_proc_open [2022-11-02 20:05:49,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2022-11-02 20:05:49,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2022-11-02 20:05:49,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-02 20:05:49,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-02 20:05:49,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-02 20:05:49,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2022-11-02 20:05:49,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2022-11-02 20:05:49,460 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_proc_release [2022-11-02 20:05:49,460 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_proc_release [2022-11-02 20:05:49,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 20:05:49,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:05:50,062 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:05:50,074 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:05:50,277 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-02 20:07:08,821 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2022-11-02 20:07:08,821 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2022-11-02 20:07:08,860 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:07:08,868 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:07:08,868 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:07:08,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:07:08 BoogieIcfgContainer [2022-11-02 20:07:08,871 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:07:08,877 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:07:08,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:07:08,882 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:07:08,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:05:26" (1/3) ... [2022-11-02 20:07:08,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4597f735 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:07:08, skipping insertion in model container [2022-11-02 20:07:08,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:05:48" (2/3) ... [2022-11-02 20:07:08,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4597f735 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:07:08, skipping insertion in model container [2022-11-02 20:07:08,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:07:08" (3/3) ... [2022-11-02 20:07:08,886 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2022-11-02 20:07:08,913 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:07:08,913 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:07:09,012 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:07:09,028 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;@15f5b02f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:07:09,029 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:07:09,034 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) [2022-11-02 20:07:09,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-02 20:07:09,043 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:07:09,044 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:07:09,044 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:07:09,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:07:09,053 INFO L85 PathProgramCache]: Analyzing trace with hash 68606922, now seen corresponding path program 1 times [2022-11-02 20:07:09,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:07:09,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108954783] [2022-11-02 20:07:09,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:07:09,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:07:09,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:07:10,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:07:10,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:07:10,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108954783] [2022-11-02 20:07:10,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108954783] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:07:10,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:07:10,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:07:10,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061037289] [2022-11-02 20:07:10,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:07:10,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:07:10,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:07:10,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:07:10,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:07:10,947 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) [2022-11-02 20:07:11,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:07:11,053 INFO L93 Difference]: Finished difference Result 167 states and 216 transitions. [2022-11-02 20:07:11,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:07:11,057 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 [2022-11-02 20:07:11,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:07:11,081 INFO L225 Difference]: With dead ends: 167 [2022-11-02 20:07:11,082 INFO L226 Difference]: Without dead ends: 103 [2022-11-02 20:07:11,088 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 [2022-11-02 20:07:11,094 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 [2022-11-02 20:07:11,096 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] [2022-11-02 20:07:11,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-11-02 20:07:11,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 100. [2022-11-02 20:07:11,177 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) [2022-11-02 20:07:11,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 122 transitions. [2022-11-02 20:07:11,181 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 122 transitions. Word has length 10 [2022-11-02 20:07:11,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:07:11,182 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 122 transitions. [2022-11-02 20:07:11,182 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) [2022-11-02 20:07:11,182 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 122 transitions. [2022-11-02 20:07:11,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-02 20:07:11,186 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:07:11,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:07:11,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:07:11,189 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:07:11,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:07:11,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1277375410, now seen corresponding path program 1 times [2022-11-02 20:07:11,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:07:11,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030400373] [2022-11-02 20:07:11,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:07:11,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:07:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:07:12,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:07:12,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:07:12,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030400373] [2022-11-02 20:07:12,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030400373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:07:12,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:07:12,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:07:12,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891298170] [2022-11-02 20:07:12,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:07:12,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:07:12,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:07:12,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:07:12,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:07:12,423 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) [2022-11-02 20:07:12,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:07:12,504 INFO L93 Difference]: Finished difference Result 213 states and 268 transitions. [2022-11-02 20:07:12,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:07:12,506 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 [2022-11-02 20:07:12,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:07:12,509 INFO L225 Difference]: With dead ends: 213 [2022-11-02 20:07:12,510 INFO L226 Difference]: Without dead ends: 115 [2022-11-02 20:07:12,512 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 [2022-11-02 20:07:12,515 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 [2022-11-02 20:07:12,516 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] [2022-11-02 20:07:12,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-11-02 20:07:12,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2022-11-02 20:07:12,536 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) [2022-11-02 20:07:12,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 142 transitions. [2022-11-02 20:07:12,545 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 142 transitions. Word has length 19 [2022-11-02 20:07:12,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:07:12,545 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 142 transitions. [2022-11-02 20:07:12,545 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) [2022-11-02 20:07:12,546 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 142 transitions. [2022-11-02 20:07:12,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-02 20:07:12,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:07:12,547 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] [2022-11-02 20:07:12,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:07:12,548 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:07:12,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:07:12,548 INFO L85 PathProgramCache]: Analyzing trace with hash 359859625, now seen corresponding path program 1 times [2022-11-02 20:07:12,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:07:12,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455800832] [2022-11-02 20:07:12,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:07:12,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:07:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:07:14,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:07:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:07:14,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:07:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:07:14,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:07:14,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:07:14,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455800832] [2022-11-02 20:07:14,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455800832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:07:14,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:07:14,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:07:14,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569308923] [2022-11-02 20:07:14,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:07:14,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:07:14,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:07:14,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:07:14,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:07:14,376 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) [2022-11-02 20:07:16,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:07:16,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:07:16,800 INFO L93 Difference]: Finished difference Result 193 states and 237 transitions. [2022-11-02 20:07:16,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:07:16,802 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 [2022-11-02 20:07:16,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:07:16,804 INFO L225 Difference]: With dead ends: 193 [2022-11-02 20:07:16,804 INFO L226 Difference]: Without dead ends: 133 [2022-11-02 20:07:16,805 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 [2022-11-02 20:07:16,806 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 35 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:07:16,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 341 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 71 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-11-02 20:07:16,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-11-02 20:07:16,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 125. [2022-11-02 20:07:16,824 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) [2022-11-02 20:07:16,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 152 transitions. [2022-11-02 20:07:16,826 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 152 transitions. Word has length 29 [2022-11-02 20:07:16,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:07:16,826 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 152 transitions. [2022-11-02 20:07:16,826 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) [2022-11-02 20:07:16,827 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 152 transitions. [2022-11-02 20:07:16,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-02 20:07:16,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:07:16,828 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] [2022-11-02 20:07:16,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:07:16,829 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:07:16,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:07:16,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1823952005, now seen corresponding path program 1 times [2022-11-02 20:07:16,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:07:16,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978020444] [2022-11-02 20:07:16,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:07:16,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:07:21,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:07:21,335 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:07:23,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:07:23,367 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:07:23,367 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:07:23,368 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 20:07:23,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:07:23,375 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-02 20:07:23,379 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:07:23,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:07:23 BoogieIcfgContainer [2022-11-02 20:07:23,591 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:07:23,592 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:07:23,592 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:07:23,593 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:07:23,594 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:07:08" (3/4) ... [2022-11-02 20:07:23,597 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:07:23,599 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:07:23,602 INFO L158 Benchmark]: Toolchain (without parser) took 117119.73ms. Allocated memory was 130.0MB in the beginning and 838.9MB in the end (delta: 708.8MB). Free memory was 68.5MB in the beginning and 353.3MB in the end (delta: -284.7MB). Peak memory consumption was 425.3MB. Max. memory is 16.1GB. [2022-11-02 20:07:23,603 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 130.0MB. Free memory was 101.4MB in the beginning and 101.4MB in the end (delta: 21.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:07:23,604 INFO L158 Benchmark]: CACSL2BoogieTranslator took 21551.81ms. Allocated memory was 130.0MB in the beginning and 423.6MB in the end (delta: 293.6MB). Free memory was 68.0MB in the beginning and 178.6MB in the end (delta: -110.6MB). Peak memory consumption was 281.2MB. Max. memory is 16.1GB. [2022-11-02 20:07:23,604 INFO L158 Benchmark]: Boogie Procedure Inliner took 941.35ms. Allocated memory is still 423.6MB. Free memory was 178.6MB in the beginning and 174.5MB in the end (delta: 4.0MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2022-11-02 20:07:23,605 INFO L158 Benchmark]: Boogie Preprocessor took 236.98ms. Allocated memory is still 423.6MB. Free memory was 174.5MB in the beginning and 178.6MB in the end (delta: -4.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-02 20:07:23,605 INFO L158 Benchmark]: RCFGBuilder took 79651.20ms. Allocated memory was 423.6MB in the beginning and 838.9MB in the end (delta: 415.2MB). Free memory was 178.6MB in the beginning and 246.2MB in the end (delta: -67.6MB). Peak memory consumption was 475.0MB. Max. memory is 16.1GB. [2022-11-02 20:07:23,606 INFO L158 Benchmark]: TraceAbstraction took 14714.75ms. Allocated memory is still 838.9MB. Free memory was 245.2MB in the beginning and 353.3MB in the end (delta: -108.1MB). Peak memory consumption was 91.2MB. Max. memory is 16.1GB. [2022-11-02 20:07:23,606 INFO L158 Benchmark]: Witness Printer took 7.23ms. Allocated memory is still 838.9MB. Free memory is still 353.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:07:23,611 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 130.0MB. Free memory was 101.4MB in the beginning and 101.4MB in the end (delta: 21.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 21551.81ms. Allocated memory was 130.0MB in the beginning and 423.6MB in the end (delta: 293.6MB). Free memory was 68.0MB in the beginning and 178.6MB in the end (delta: -110.6MB). Peak memory consumption was 281.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 941.35ms. Allocated memory is still 423.6MB. Free memory was 178.6MB in the beginning and 174.5MB in the end (delta: 4.0MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 236.98ms. Allocated memory is still 423.6MB. Free memory was 174.5MB in the beginning and 178.6MB in the end (delta: -4.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * RCFGBuilder took 79651.20ms. Allocated memory was 423.6MB in the beginning and 838.9MB in the end (delta: 415.2MB). Free memory was 178.6MB in the beginning and 246.2MB in the end (delta: -67.6MB). Peak memory consumption was 475.0MB. Max. memory is 16.1GB. * TraceAbstraction took 14714.75ms. Allocated memory is still 838.9MB. Free memory was 245.2MB in the beginning and 353.3MB in the end (delta: -108.1MB). Peak memory consumption was 91.2MB. Max. memory is 16.1GB. * Witness Printer took 7.23ms. Allocated memory is still 838.9MB. Free memory is still 353.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 10085]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 30360. Possible FailurePath: [L10081] int LDV_IN_INTERRUPT ; [L10089] int ldv_module_refcounter = 1; [L10213] struct proc_dir_entry *drbd_proc ; [L10278-L10307] struct file_operations const drbd_proc_fops = {& __this_module, & seq_lseek, & seq_read, (ssize_t (*)(struct file * , char const * , size_t , loff_t * ))0, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (int (*)(struct file * , void * , int (*)(void * , char const * , int , loff_t , u64 , unsigned int ) ))0, (unsigned int (*)(struct file * , struct poll_table_struct * ))0, (long (*)(struct file * , unsigned int , unsigned long ))0, (long (*)(struct file * , unsigned int , unsigned long ))0, (int (*)(struct file * , struct vm_area_struct * ))0, & drbd_proc_open, (int (*)(struct file * , fl_owner_t ))0, & drbd_proc_release, (int (*)(struct file * , int ))0, (int (*)(struct kiocb * , int ))0, (int (*)(int , struct file * , int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct file * , struct page * , int , size_t , loff_t * , int ))0, (unsigned long (*)(struct file * , unsigned long , unsigned long , unsigned long , unsigned long ))0, (int (*)(int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct pipe_inode_info * , struct file * , loff_t * , size_t , unsigned int ))0, (ssize_t (*)(struct file * , loff_t * , struct pipe_inode_info * , size_t , unsigned int ))0, (int (*)(struct file * , long , struct file_lock ** ))0, (long (*)(struct file * , int , loff_t , loff_t ))0}; [L11265] rwlock_t global_state_lock ; [L22328-L22383] static struct data_cmd drbd_cmd_handler[43U] = { {1, 32UL, & receive_Data}, {1, 32UL, & receive_DataReply}, {1, 32UL, & receive_RSDataReply}, {0, 16UL, & receive_Barrier}, {1, 8UL, & receive_bitmap}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 8UL, & receive_UnplugRemote}, {0, 32UL, & receive_DataRequest}, {0, 32UL, & receive_DataRequest}, {1, 8UL, & receive_SyncParam}, {1, 32UL, & receive_protocol}, {0, 56UL, & receive_uuids}, {0, 40UL, & receive_sizes}, {0, 12UL, & receive_state}, {0, 16UL, & receive_sync_uuid}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 16UL, & receive_req_state}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 32UL, & receive_DataRequest}, {1, 32UL, & receive_DataRequest}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {1, 32UL, & receive_DataRequest}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {1, 8UL, & receive_SyncParam}, {1, 8UL, & receive_bitmap}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 16UL, & receive_skip}, {0, 24UL, & receive_out_of_sync}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}}; [L29586] int disable_sendpage ; [L29587] int allow_oos ; [L29589] int enable_faults ; [L29590] int fault_rate ; [L29591] int fault_devs ; [L29593] struct drbd_conf **minor_table ; [L29657] struct kmem_cache *drbd_request_cache ; [L29658] struct kmem_cache *drbd_ee_cache ; [L29659] struct kmem_cache *drbd_bm_ext_cache ; [L29660] struct kmem_cache *drbd_al_ext_cache ; [L29661] mempool_t *drbd_request_mempool ; [L29662] mempool_t *drbd_ee_mempool ; [L29663] struct page *drbd_pp_pool ; [L29664] spinlock_t drbd_pp_lock ; [L29665] int drbd_pp_vacant ; [L29666] wait_queue_head_t drbd_pp_wait ; [L29669] int proc_details ; [L30357-L30365] static struct mutex drbd_main_mutex = {{1}, {{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "drbd_main_mutex.wait_lock", 0, 0UL}}}}, {& drbd_main_mutex.wait_list, & drbd_main_mutex.wait_list}, (struct task_struct *)0, (char const *)0, (void *)(& drbd_main_mutex), {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "drbd_main_mutex", 0, 0UL}}; [L30376] static int fault_count ; [L30377] unsigned int minor_count = 32U; [L30378] unsigned int cn_idx = 8U; [L30379-L30383] char usermode_helper[80U] = { (char )'/', (char )'s', (char )'b', (char )'i', (char )'n', (char )'/', (char )'d', (char )'r', (char )'b', (char )'d', (char )'a', (char )'d', (char )'m', (char )'\000'}; [L30384-L30389] struct ratelimit_state drbd_ratelimit_state = {{{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "drbd_ratelimit_state.lock", 0, 0UL}}}}, 1250, 5, 0, 0, 0UL}; [L30390-L30401] static struct block_device_operations const drbd_ops = {& drbd_open, & drbd_release, (int (*)(struct block_device * , fmode_t , unsigned int , unsigned long ))0, (int (*)(struct block_device * , fmode_t , unsigned int , unsigned long ))0, (int (*)(struct block_device * , sector_t , void ** , unsigned long * ))0, (unsigned int (*)(struct gendisk * , unsigned int ))0, (int (*)(struct gendisk * ))0, (void (*)(struct gendisk * ))0, (int (*)(struct gendisk * ))0, (int (*)(struct block_device * , struct hd_geometry * ))0, (void (*)(struct block_device * , unsigned long ))0, & __this_module}; [L36025] static struct notifier_block drbd_notifier = {& drbd_notify_sys, (struct notifier_block *)0, 0}; [L37468-L37474] static char const *drbd_conn_s_names[24U] = { "StandAlone", "Disconnecting", "Unconnected", "Timeout", "BrokenPipe", "NetworkFailure", "ProtocolError", "TearDown", "WFConnection", "WFReportParams", "Connected", "StartingSyncS", "StartingSyncT", "WFBitMapS", "WFBitMapT", "WFSyncUUID", "SyncSource", "SyncTarget", "VerifyS", "VerifyT", "PausedSyncS", "PausedSyncT", "Ahead", "Behind"}; [L37475] static char const *drbd_role_s_names[3U] = { "Unknown", "Primary", "Secondary"}; [L37476-L37479] static char const *drbd_disk_s_names[9U] = { "Diskless", "Attaching", "Failed", "Negotiating", "Inconsistent", "Outdated", "DUnknown", "Consistent", "UpToDate"}; [L37480-L37485] static char const *drbd_state_sw_errors[20U] = { (char const *)0, "Multiple primaries not allowed by config", "Need access to UpToDate data", (char const *)0, "Can not resync without local disk", "Can not resync without remote disk", "Refusing to be Outdated while Connected", "Refusing to be Primary while peer is not outdated", "Can not start OV/resync since it is already active", "Can not disconnect a StandAlone device", "State change was refused by peer node", "Device is diskless, the requested operation requires a disk", "Device is held open by someone", "Have no net/connection configuration", "Need a verify algorithm to start online verify", "Need a connection to start verify or resync", "Disk state is lower than outdated", "Peer does not support protocol", "In transient state, retry after next state change", "Concurrent state changes detected and aborted"}; [L37804-L37889] static struct tag const tag_descriptions[85U] = { {(char const *)0, 0, 0}, {"primary_force", 32768, 4}, {"disk_size", 16384, 8}, {"backing_dev", 57344, 128}, {"meta_dev", 57344, 128}, {"meta_dev_idx", 8192, 4}, {"on_io_error", 0, 4}, {"fencing", 0, 4}, {"my_addr", 57344, 128}, {"peer_addr", 57344, 128}, {"shared_secret", 49152, 64}, {"cram_hmac_alg", 49152, 64}, {(char const *)0, 0, 0}, {(char const *)0, 0, 0}, {"timeout", 0, 4}, {"wire_protocol", 8192, 4}, {"try_connect_int", 0, 4}, {"ping_int", 0, 4}, {"max_epoch_size", 0, 4}, {"max_buffers", 0, 4}, {"unplug_watermark", 0, 4}, {"sndbuf_size", 0, 4}, {"ko_count", 0, 4}, {(char const *)0, 0, 0}, {"after_sb_0p", 0, 4}, {"after_sb_1p", 0, 4}, {"after_sb_2p", 0, 4}, {"want_lose", 32768, 4}, {"two_primaries", 32768, 4}, {"resize_size", 16384, 8}, {"rate", 0, 4}, {"after", 0, 4}, {"al_extents", 0, 4}, {"state_i", 0, 4}, {"uuids", 49152, 32}, {"uuids_flags", 0, 4}, {"use_degraded", 32768, 4}, {"use_bmbv", 32768, 4}, {"helper", 49152, 32}, {"rr_conflict", 0, 4}, {"ping_timeo", 0, 4}, {"always_asbp", 32768, 4}, {(char const *)0, 0, 0}, {"sync_progress", 0, 4}, {"integrity_alg", 49152, 64}, {"dump_ee_reason", 49152, 32}, {"seen_digest", 49152, 64}, {"calc_digest", 49152, 64}, {"ee_sector", 16384, 8}, {"ee_block_id", 16384, 8}, {"ee_data", 49152, 32768}, {"cpu_mask", 49152, 32}, {"verify_alg", 49152, 64}, {"no_disk_flush", 32768, 4}, {"no_md_flush", 32768, 4}, {(char const *)0, 0, 0}, {"max_bio_bvecs", 0, 4}, {"no_disk_barrier", 32768, 4}, {"no_disk_drain", 32768, 4}, {(char const *)0, 0, 0}, {"mind_af", 40960, 4}, {"no_cork", 32768, 4}, {"auto_sndbuf_size", 40960, 4}, {"clear_bm", 40960, 4}, {"csums_alg", 49152, 64}, {"use_rle", 32768, 4}, {"start_sector", 16384, 8}, {"rcvbuf_size", 0, 4}, {"resize_force", 32768, 4}, {"no_resync", 40960, 4}, {"dry_run", 40960, 4}, {(char const *)0, 0, 0}, {(char const *)0, 0, 0}, {(char const *)0, 0, 0}, {(char const *)0, 0, 0}, {"on_no_data", 0, 4}, {"c_plan_ahead", 0, 4}, {"c_delay_target", 0, 4}, {"c_fill_target", 0, 4}, {"c_max_rate", 0, 4}, {"c_min_rate", 0, 4}, {"on_congestion", 0, 4}, {"cong_fill", 0, 4}, {"cong_extents", 0, 4}, {"force", 32768, 4}}; [L37894] static char *drbd_m_holder = (char *)"Hands off! this is DRBD\'s meta data device."; [L48088-L48121] static struct cn_handler_struct cnd_table[27U] = { {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {& drbd_nl_primary, 0}, {& drbd_nl_secondary, 0}, {& drbd_nl_disk_conf, 0}, {& drbd_nl_detach, 0}, {& drbd_nl_net_conf, 0}, {& drbd_nl_disconnect, 0}, {& drbd_nl_resize, 0}, {& drbd_nl_syncer_conf, 0}, {& drbd_nl_invalidate, 0}, {& drbd_nl_invalidate_peer, 0}, {& drbd_nl_pause_sync, 0}, {& drbd_nl_resume_sync, 0}, {& drbd_nl_suspend_io, 0}, {& drbd_nl_resume_io, 0}, {& drbd_nl_outdate, 0}, {& drbd_nl_get_config, 1312}, {& drbd_nl_get_state, 16}, {& drbd_nl_get_uuids, 48}, {& drbd_nl_get_timeout_flag, 8}, {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {& drbd_nl_start_ov, 0}, {& drbd_nl_new_c_uuid, 0}}; [L48229] static atomic_t drbd_nl_seq = {2}; VAL [__this_module={-1510:1511}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, usermode_helper={1500:0}] [L10746] struct inode *var_group1 ; [L10747] struct file *var_group2 ; [L10748] int res_drbd_proc_open_4 ; [L10749] int ldv_s_drbd_proc_fops_file_operations ; [L10750] int tmp ; [L10751] int tmp___0 ; [L10754] ldv_s_drbd_proc_fops_file_operations = 0 [L10755] LDV_IN_INTERRUPT = 1 [L10756] FCALL ldv_initialize() [L10802] tmp___0 = __VERIFIER_nondet_int() [L10804] COND TRUE tmp___0 != 0 VAL [__this_module={-1510:1511}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_drbd_proc_fops_file_operations=0, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, tmp___0=-2, usermode_helper={1500:0}] [L10761] tmp = __VERIFIER_nondet_int() [L10763] COND TRUE tmp == 0 VAL [__this_module={-1510:1511}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_drbd_proc_fops_file_operations=0, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, tmp=0, tmp___0=-2, usermode_helper={1500:0}] [L10772] COND TRUE ldv_s_drbd_proc_fops_file_operations == 0 VAL [__this_module={-1510:1511}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_drbd_proc_fops_file_operations=0, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, tmp=0, tmp___0=-2, usermode_helper={1500:0}] [L10774] CALL, EXPR drbd_proc_open(var_group1, var_group2) VAL [\old(ldv_module_refcounter)=1, __this_module={-1510:1511}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, usermode_helper={1500:0}] [L10716] struct proc_dir_entry *tmp ; [L10717] int tmp___0 ; [L10718] int tmp___1 ; VAL [\old(ldv_module_refcounter)=1, __this_module={-1510:1511}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, file={1152921504606846984:1152921504606846998}, file={1152921504606846984:1152921504606846998}, global_state_lock={1494:0}, inode={1152921504606846979:-1355835689417651968512}, inode={1152921504606846979:-1355835689417651968512}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, usermode_helper={1500:0}] [L10721] CALL, EXPR ldv_try_module_get_1(& __this_module) VAL [\old(ldv_module_refcounter)=1, __this_module={-1510:1511}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, usermode_helper={1500:0}] [L10821] int tmp ; [L10824] CALL, EXPR ldv_try_module_get(module) [L10101] int module_get_succeeded ; VAL [\old(ldv_module_refcounter)=1, __this_module={-1510:1511}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, module={-1510:1511}, module={-1510:1511}, proc_details=0, tag_descriptions={1508:0}, usermode_helper={1500:0}] [L10103] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) [L10105] CALL, EXPR ldv_undefined_int() [L49395] return __VERIFIER_nondet_int(); [L10105] RET, EXPR ldv_undefined_int() [L10105] module_get_succeeded = ldv_undefined_int() [L10107] COND TRUE module_get_succeeded == 1 [L10108] ldv_module_refcounter = ldv_module_refcounter + 1 [L10109] return (1); VAL [\old(ldv_module_refcounter)=1, \result=1, __this_module={-1510:1511}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, module={-1510:1511}, module={-1510:1511}, module_get_succeeded=1, proc_details=0, tag_descriptions={1508:0}, usermode_helper={1500:0}] [L10824] RET, EXPR ldv_try_module_get(module) [L10824] tmp = ldv_try_module_get(module) [L10826] return (tmp); VAL [\old(ldv_module_refcounter)=1, \result=1, __this_module={-1510:1511}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, module={-1510:1511}, module={-1510:1511}, proc_details=0, tag_descriptions={1508:0}, tmp=1, usermode_helper={1500:0}] [L10721] RET, EXPR ldv_try_module_get_1(& __this_module) VAL [\old(ldv_module_refcounter)=1, __this_module={-1510:1511}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, file={1152921504606846984:1152921504606846998}, file={1152921504606846984:1152921504606846998}, global_state_lock={1494:0}, inode={1152921504606846979:-1355835689417651968512}, inode={1152921504606846979:-1355835689417651968512}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_try_module_get_1(& __this_module)=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, usermode_helper={1500:0}] [L10721] tmp___1 = ldv_try_module_get_1(& __this_module) [L10723] COND TRUE tmp___1 != 0 [L10725] CALL, EXPR PDE((struct inode const *)inode) [L10179] struct proc_inode *tmp ; [L10182] CALL, EXPR PROC_I(inode) [L10172] struct inode const *__mptr ; [L10174] __mptr = inode [L10175] return ((struct proc_inode *)__mptr + 0x0fffffffffffffc0UL); VAL [\old(ldv_module_refcounter)=1, \result={1152921504606846979:0}, __mptr={1152921504606846979:-1355835689417651968512}, __this_module={-1510:1511}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, inode={1152921504606846979:-1355835689417651968512}, inode={1152921504606846979:-1355835689417651968512}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, usermode_helper={1500:0}] [L10182] RET, EXPR PROC_I(inode) [L10182] tmp = PROC_I(inode) [L10184] EXPR tmp->pde [L10184] return (tmp->pde); [L10725] RET, EXPR PDE((struct inode const *)inode) [L10725] tmp = PDE((struct inode const *)inode) [L10726] EXPR tmp->data [L10726] CALL, EXPR single_open(file, & drbd_seq_show, tmp->data) [L49504] return __VERIFIER_nondet_int(); [L10726] RET, EXPR single_open(file, & drbd_seq_show, tmp->data) [L10726] tmp___0 = single_open(file, & drbd_seq_show, tmp->data) [L10728] return (tmp___0); VAL [\old(ldv_module_refcounter)=1, \result=1512, __this_module={-1510:1511}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, file={1152921504606846984:1152921504606846998}, file={1152921504606846984:1152921504606846998}, global_state_lock={1494:0}, inode={1152921504606846979:-1355835689417651968512}, inode={1152921504606846979:-1355835689417651968512}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, tmp={1152921504606847003:-87}, tmp___0=1512, tmp___1=1, usermode_helper={1500:0}] [L10774] RET, EXPR drbd_proc_open(var_group1, var_group2) VAL [__this_module={-1510:1511}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_proc_open(var_group1, var_group2)=1512, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_drbd_proc_fops_file_operations=0, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, tmp=0, tmp___0=-2, usermode_helper={1500:0}, var_group1={1152921504606846979:-1355835689417651968512}, var_group2={1152921504606846984:1152921504606846998}] [L10774] res_drbd_proc_open_4 = drbd_proc_open(var_group1, var_group2) [L10775] FCALL ldv_check_return_value(res_drbd_proc_open_4) [L10777] COND TRUE res_drbd_proc_open_4 != 0 VAL [__this_module={-1510:1511}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_drbd_proc_fops_file_operations=0, minor_count=32, minor_table={0:0}, proc_details=0, res_drbd_proc_open_4=1512, tag_descriptions={1508:0}, tmp=0, tmp___0=-2, usermode_helper={1500:0}, var_group1={1152921504606846979:-1355835689417651968512}, var_group2={1152921504606846984:1152921504606846998}] [L10815] CALL ldv_check_final_state() [L10153] COND TRUE ldv_module_refcounter != 1 VAL [__this_module={-1510:1511}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, usermode_helper={1500:0}] [L10155] CALL ldv_blast_assert() VAL [__this_module={-1510:1511}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, usermode_helper={1500:0}] [L10085] reach_error() VAL [__this_module={-1510:1511}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, usermode_helper={1500:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.4s, 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, 586 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 385 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 88 IncrementalHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 201 mSDtfsCounter, 88 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, 5.1s SatisfiabilityAnalysisTime, 3.3s 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 [2022-11-02 20:07:23,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/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_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc --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-5e519f3 [2022-11-02 20:07:26,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:07:26,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:07:26,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:07:26,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:07:26,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:07:26,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:07:26,365 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:07:26,367 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:07:26,368 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:07:26,369 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:07:26,371 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:07:26,371 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:07:26,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:07:26,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:07:26,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:07:26,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:07:26,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:07:26,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:07:26,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:07:26,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:07:26,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:07:26,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:07:26,387 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:07:26,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:07:26,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:07:26,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:07:26,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:07:26,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:07:26,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:07:26,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:07:26,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:07:26,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:07:26,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:07:26,400 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:07:26,400 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:07:26,401 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:07:26,401 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:07:26,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:07:26,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:07:26,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:07:26,405 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-02 20:07:26,439 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:07:26,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:07:26,440 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:07:26,440 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:07:26,441 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:07:26,441 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:07:26,442 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:07:26,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:07:26,443 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:07:26,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:07:26,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:07:26,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:07:26,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:07:26,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:07:26,444 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 20:07:26,445 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-02 20:07:26,445 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-02 20:07:26,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:07:26,445 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:07:26,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:07:26,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:07:26,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:07:26,446 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:07:26,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:07:26,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:07:26,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:07:26,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:07:26,448 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-02 20:07:26,448 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-02 20:07:26,448 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:07:26,448 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:07:26,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:07:26,449 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-02 20:07:26,449 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_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 [2022-11-02 20:07:26,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:07:26,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:07:26,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:07:26,892 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:07:26,893 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:07:26,895 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2022-11-02 20:07:26,981 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/data/3fc4f13c6/33cb2328eebf4309a4de6ccd8933c70b/FLAG5dc279fc4 [2022-11-02 20:07:28,891 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:07:28,892 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2022-11-02 20:07:29,052 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/data/3fc4f13c6/33cb2328eebf4309a4de6ccd8933c70b/FLAG5dc279fc4 [2022-11-02 20:07:29,538 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/data/3fc4f13c6/33cb2328eebf4309a4de6ccd8933c70b [2022-11-02 20:07:29,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:07:29,542 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:07:29,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:07:29,544 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:07:29,565 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:07:29,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:07:29" (1/1) ... [2022-11-02 20:07:29,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16dfb05f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:29, skipping insertion in model container [2022-11-02 20:07:29,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:07:29" (1/1) ... [2022-11-02 20:07:29,575 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:07:30,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:07:34,546 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2022-11-02 20:07:47,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:07:47,282 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-02 20:07:47,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:07:47,770 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2022-11-02 20:07:48,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:07:48,996 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:07:49,351 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2022-11-02 20:07:51,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:07:51,687 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:07:51,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:51 WrapperNode [2022-11-02 20:07:51,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:07:51,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:07:51,691 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:07:51,691 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:07:51,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:51" (1/1) ... [2022-11-02 20:07:52,060 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:51" (1/1) ... [2022-11-02 20:07:52,361 INFO L138 Inliner]: procedures = 910, calls = 20421, calls flagged for inlining = 345, calls inlined = 11, statements flattened = 2894 [2022-11-02 20:07:52,362 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:07:52,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:07:52,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:07:52,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:07:52,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:51" (1/1) ... [2022-11-02 20:07:52,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:51" (1/1) ... [2022-11-02 20:07:52,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:51" (1/1) ... [2022-11-02 20:07:52,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:51" (1/1) ... [2022-11-02 20:07:52,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:51" (1/1) ... [2022-11-02 20:07:52,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:51" (1/1) ... [2022-11-02 20:07:52,565 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:51" (1/1) ... [2022-11-02 20:07:52,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:51" (1/1) ... [2022-11-02 20:07:52,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:07:52,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:07:52,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:07:52,593 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:07:52,594 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:51" (1/1) ... [2022-11-02 20:07:52,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:07:52,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:07:52,641 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:07:52,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ac5a9-81df-4c68-8f5f-6af3794d3638/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:07:52,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:07:52,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:07:52,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:07:52,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:07:52,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-02 20:07:52,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-02 20:07:52,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-02 20:07:52,698 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_proc_open [2022-11-02 20:07:52,698 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_proc_open [2022-11-02 20:07:52,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-02 20:07:52,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-02 20:07:52,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-02 20:07:52,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2022-11-02 20:07:52,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2022-11-02 20:07:52,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-02 20:07:52,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-02 20:07:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2022-11-02 20:07:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2022-11-02 20:07:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_proc_release [2022-11-02 20:07:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_proc_release [2022-11-02 20:07:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 20:07:53,405 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:07:53,408 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:07:53,666 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock.