./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 aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/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_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:58:26,418 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:58:26,421 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:58:26,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:58:26,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:58:26,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:58:26,484 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:58:26,489 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:58:26,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:58:26,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:58:26,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:58:26,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:58:26,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:58:26,513 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:58:26,515 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:58:26,518 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:58:26,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:58:26,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:58:26,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:58:26,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:58:26,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:58:26,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:58:26,549 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:58:26,550 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:58:26,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:58:26,558 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:58:26,559 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:58:26,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:58:26,562 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:58:26,564 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:58:26,565 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:58:26,566 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:58:26,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:58:26,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:58:26,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:58:26,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:58:26,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:58:26,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:58:26,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:58:26,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:58:26,577 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:58:26,578 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 14:58:26,622 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:58:26,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:58:26,623 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:58:26,623 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:58:26,624 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:58:26,625 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:58:26,625 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:58:26,626 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:58:26,626 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 14:58:26,626 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:58:26,626 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 14:58:26,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:58:26,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 14:58:26,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:58:26,628 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:58:26,628 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 14:58:26,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:58:26,629 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:58:26,629 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:58:26,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:58:26,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:58:26,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:58:26,630 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 14:58:26,631 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 14:58:26,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 14:58:26,631 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 14:58:26,631 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 14:58:26,632 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 14:58:26,632 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:58:26,632 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_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 [2021-11-22 14:58:26,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:58:27,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:58:27,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:58:27,031 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:58:27,033 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:58:27,035 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2021-11-22 14:58:27,113 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/data/a41826da9/dc744c90880e41b6b510386070107bf5/FLAG041cea848 [2021-11-22 14:58:28,870 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:58:28,871 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2021-11-22 14:58:29,085 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/data/a41826da9/dc744c90880e41b6b510386070107bf5/FLAG041cea848 [2021-11-22 14:58:29,565 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/data/a41826da9/dc744c90880e41b6b510386070107bf5 [2021-11-22 14:58:29,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:58:29,571 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:58:29,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:58:29,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:58:29,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:58:29,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:58:29" (1/1) ... [2021-11-22 14:58:29,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aa9669f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:58:29, skipping insertion in model container [2021-11-22 14:58:29,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:58:29" (1/1) ... [2021-11-22 14:58:29,592 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:58:30,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:58:34,527 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_de016957-68ce-4eb0-b48f-04f38cde8c33/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2021-11-22 14:58:47,886 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:58:47,962 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:58:48,415 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_de016957-68ce-4eb0-b48f-04f38cde8c33/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2021-11-22 14:58:50,156 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:58:50,879 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:58:50,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:58:50 WrapperNode [2021-11-22 14:58:50,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:58:50,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:58:50,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:58:50,885 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:58:50,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:58:50" (1/1) ... [2021-11-22 14:58:51,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:58:50" (1/1) ... [2021-11-22 14:58:52,058 INFO L137 Inliner]: procedures = 895, calls = 20422, calls flagged for inlining = 4203, calls inlined = 18, statements flattened = 2921 [2021-11-22 14:58:52,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:58:52,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:58:52,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:58:52,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:58:52,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:58:50" (1/1) ... [2021-11-22 14:58:52,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:58:50" (1/1) ... [2021-11-22 14:58:52,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:58:50" (1/1) ... [2021-11-22 14:58:52,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:58:50" (1/1) ... [2021-11-22 14:58:52,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:58:50" (1/1) ... [2021-11-22 14:58:52,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:58:50" (1/1) ... [2021-11-22 14:58:52,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:58:50" (1/1) ... [2021-11-22 14:58:52,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:58:52,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:58:52,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:58:52,290 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:58:52,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:58:50" (1/1) ... [2021-11-22 14:58:52,341 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:58:52,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:58:52,411 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 14:58:52,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 14:58:52,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:58:52,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:58:52,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:58:52,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 14:58:52,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 14:58:52,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 14:58:52,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 14:58:53,170 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:58:53,173 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:58:53,266 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-22 15:00:03,483 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2021-11-22 15:00:03,483 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2021-11-22 15:00:03,484 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:00:03,490 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:00:03,490 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 15:00:03,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:00:03 BoogieIcfgContainer [2021-11-22 15:00:03,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:00:03,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:00:03,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:00:03,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:00:03,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:58:29" (1/3) ... [2021-11-22 15:00:03,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b21fc14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:00:03, skipping insertion in model container [2021-11-22 15:00:03,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:58:50" (2/3) ... [2021-11-22 15:00:03,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b21fc14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:00:03, skipping insertion in model container [2021-11-22 15:00:03,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:00:03" (3/3) ... [2021-11-22 15:00:03,501 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2021-11-22 15:00:03,507 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:00:03,507 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-22 15:00:03,557 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:00:03,564 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 15:00:03,564 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-22 15:00:03,579 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 41 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:00:03,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-22 15:00:03,584 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:00:03,585 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:00:03,585 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:00:03,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:00:03,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1153293514, now seen corresponding path program 1 times [2021-11-22 15:00:03,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:00:03,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419256994] [2021-11-22 15:00:03,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:00:03,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:00:04,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:00:04,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:00:04,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:00:04,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419256994] [2021-11-22 15:00:04,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419256994] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:00:04,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:00:04,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 15:00:04,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285453731] [2021-11-22 15:00:04,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:00:04,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:00:04,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:00:04,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:00:04,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:00:04,772 INFO L87 Difference]: Start difference. First operand has 42 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 41 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:00:04,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:00:04,833 INFO L93 Difference]: Finished difference Result 109 states and 146 transitions. [2021-11-22 15:00:04,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:00:04,836 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-22 15:00:04,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:00:04,845 INFO L225 Difference]: With dead ends: 109 [2021-11-22 15:00:04,846 INFO L226 Difference]: Without dead ends: 64 [2021-11-22 15:00:04,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:00:04,852 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 38 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:00:04,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 85 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:00:04,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-11-22 15:00:04,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2021-11-22 15:00:04,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 60 states have (on average 1.35) internal successors, (81), 61 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:00:04,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 81 transitions. [2021-11-22 15:00:04,907 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 81 transitions. Word has length 9 [2021-11-22 15:00:04,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:00:04,907 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 81 transitions. [2021-11-22 15:00:04,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:00:04,908 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 81 transitions. [2021-11-22 15:00:04,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-22 15:00:04,909 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:00:04,909 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:00:04,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 15:00:04,910 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:00:04,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:00:04,911 INFO L85 PathProgramCache]: Analyzing trace with hash -125207990, now seen corresponding path program 1 times [2021-11-22 15:00:04,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:00:04,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912148861] [2021-11-22 15:00:04,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:00:04,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:00:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:00:05,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:00:05,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:00:05,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912148861] [2021-11-22 15:00:05,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912148861] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:00:05,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:00:05,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:00:05,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616584337] [2021-11-22 15:00:05,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:00:05,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:00:05,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:00:05,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:00:05,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:00:05,562 INFO L87 Difference]: Start difference. First operand 62 states and 81 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:00:05,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:00:05,626 INFO L93 Difference]: Finished difference Result 137 states and 186 transitions. [2021-11-22 15:00:05,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:00:05,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-22 15:00:05,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:00:05,629 INFO L225 Difference]: With dead ends: 137 [2021-11-22 15:00:05,630 INFO L226 Difference]: Without dead ends: 77 [2021-11-22 15:00:05,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:00:05,635 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 23 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:00:05,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 61 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:00:05,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-11-22 15:00:05,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2021-11-22 15:00:05,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 76 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:00:05,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 101 transitions. [2021-11-22 15:00:05,665 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 101 transitions. Word has length 12 [2021-11-22 15:00:05,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:00:05,665 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 101 transitions. [2021-11-22 15:00:05,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:00:05,666 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 101 transitions. [2021-11-22 15:00:05,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-22 15:00:05,668 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:00:05,669 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:00:05,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 15:00:05,670 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:00:05,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:00:05,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1191699164, now seen corresponding path program 1 times [2021-11-22 15:00:05,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:00:05,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556463820] [2021-11-22 15:00:05,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:00:05,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:00:05,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:00:06,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:00:06,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:00:06,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556463820] [2021-11-22 15:00:06,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556463820] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:00:06,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:00:06,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 15:00:06,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427171745] [2021-11-22 15:00:06,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:00:06,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 15:00:06,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:00:06,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 15:00:06,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:00:06,184 INFO L87 Difference]: Start difference. First operand 77 states and 101 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:00:06,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:00:06,279 INFO L93 Difference]: Finished difference Result 156 states and 204 transitions. [2021-11-22 15:00:06,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:00:06,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-22 15:00:06,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:00:06,286 INFO L225 Difference]: With dead ends: 156 [2021-11-22 15:00:06,286 INFO L226 Difference]: Without dead ends: 115 [2021-11-22 15:00:06,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-22 15:00:06,291 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 105 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:00:06,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 199 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:00:06,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-11-22 15:00:06,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 80. [2021-11-22 15:00:06,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 78 states have (on average 1.3333333333333333) internal successors, (104), 79 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:00:06,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 104 transitions. [2021-11-22 15:00:06,309 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 104 transitions. Word has length 20 [2021-11-22 15:00:06,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:00:06,309 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 104 transitions. [2021-11-22 15:00:06,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:00:06,310 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 104 transitions. [2021-11-22 15:00:06,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-22 15:00:06,311 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:00:06,311 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:00:06,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 15:00:06,311 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:00:06,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:00:06,312 INFO L85 PathProgramCache]: Analyzing trace with hash 626026542, now seen corresponding path program 1 times [2021-11-22 15:00:06,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:00:06,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106634325] [2021-11-22 15:00:06,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:00:06,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:00:09,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:00:09,337 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 15:00:11,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:00:11,560 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 15:00:11,561 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 15:00:11,562 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-22 15:00:11,564 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-22 15:00:11,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 15:00:11,568 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-22 15:00:11,571 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 15:00:11,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 03:00:11 BoogieIcfgContainer [2021-11-22 15:00:11,688 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 15:00:11,689 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 15:00:11,689 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 15:00:11,690 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 15:00:11,690 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:00:03" (3/4) ... [2021-11-22 15:00:11,693 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-22 15:00:11,694 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 15:00:11,697 INFO L158 Benchmark]: Toolchain (without parser) took 102123.94ms. Allocated memory was 142.6MB in the beginning and 767.6MB in the end (delta: 625.0MB). Free memory was 89.8MB in the beginning and 204.6MB in the end (delta: -114.9MB). Peak memory consumption was 509.5MB. Max. memory is 16.1GB. [2021-11-22 15:00:11,699 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 102.8MB. Free memory is still 55.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:00:11,700 INFO L158 Benchmark]: CACSL2BoogieTranslator took 21306.28ms. Allocated memory was 142.6MB in the beginning and 406.8MB in the end (delta: 264.2MB). Free memory was 89.3MB in the beginning and 159.7MB in the end (delta: -70.4MB). Peak memory consumption was 285.0MB. Max. memory is 16.1GB. [2021-11-22 15:00:11,700 INFO L158 Benchmark]: Boogie Procedure Inliner took 1174.84ms. Allocated memory is still 406.8MB. Free memory was 159.7MB in the beginning and 116.7MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2021-11-22 15:00:11,701 INFO L158 Benchmark]: Boogie Preprocessor took 228.95ms. Allocated memory is still 406.8MB. Free memory was 116.7MB in the beginning and 105.2MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 15:00:11,702 INFO L158 Benchmark]: RCFGBuilder took 71202.43ms. Allocated memory was 406.8MB in the beginning and 767.6MB in the end (delta: 360.7MB). Free memory was 105.2MB in the beginning and 265.4MB in the end (delta: -160.2MB). Peak memory consumption was 399.7MB. Max. memory is 16.1GB. [2021-11-22 15:00:11,703 INFO L158 Benchmark]: TraceAbstraction took 8194.45ms. Allocated memory is still 767.6MB. Free memory was 265.4MB in the beginning and 204.6MB in the end (delta: 60.8MB). Peak memory consumption was 156.2MB. Max. memory is 16.1GB. [2021-11-22 15:00:11,703 INFO L158 Benchmark]: Witness Printer took 4.91ms. Allocated memory is still 767.6MB. Free memory is still 204.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:00:11,709 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 102.8MB. Free memory is still 55.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 21306.28ms. Allocated memory was 142.6MB in the beginning and 406.8MB in the end (delta: 264.2MB). Free memory was 89.3MB in the beginning and 159.7MB in the end (delta: -70.4MB). Peak memory consumption was 285.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 1174.84ms. Allocated memory is still 406.8MB. Free memory was 159.7MB in the beginning and 116.7MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 228.95ms. Allocated memory is still 406.8MB. Free memory was 116.7MB in the beginning and 105.2MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 71202.43ms. Allocated memory was 406.8MB in the beginning and 767.6MB in the end (delta: 360.7MB). Free memory was 105.2MB in the beginning and 265.4MB in the end (delta: -160.2MB). Peak memory consumption was 399.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8194.45ms. Allocated memory is still 767.6MB. Free memory was 265.4MB in the beginning and 204.6MB in the end (delta: 60.8MB). Peak memory consumption was 156.2MB. Max. memory is 16.1GB. * Witness Printer took 4.91ms. Allocated memory is still 767.6MB. Free memory is still 204.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 10085]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 30360. Possible FailurePath: [L10081] int LDV_IN_INTERRUPT ; [L10089] int ldv_module_refcounter = 1; [L10213] struct proc_dir_entry *drbd_proc ; [L10278-L10307] struct file_operations const drbd_proc_fops = {& __this_module, & seq_lseek, & seq_read, (ssize_t (*)(struct file * , char const * , size_t , loff_t * ))0, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (int (*)(struct file * , void * , int (*)(void * , char const * , int , loff_t , u64 , unsigned int ) ))0, (unsigned int (*)(struct file * , struct poll_table_struct * ))0, (long (*)(struct file * , unsigned int , unsigned long ))0, (long (*)(struct file * , unsigned int , unsigned long ))0, (int (*)(struct file * , struct vm_area_struct * ))0, & drbd_proc_open, (int (*)(struct file * , fl_owner_t ))0, & drbd_proc_release, (int (*)(struct file * , int ))0, (int (*)(struct kiocb * , int ))0, (int (*)(int , struct file * , int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct file * , struct page * , int , size_t , loff_t * , int ))0, (unsigned long (*)(struct file * , unsigned long , unsigned long , unsigned long , unsigned long ))0, (int (*)(int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct pipe_inode_info * , struct file * , loff_t * , size_t , unsigned int ))0, (ssize_t (*)(struct file * , loff_t * , struct pipe_inode_info * , size_t , unsigned int ))0, (int (*)(struct file * , long , struct file_lock ** ))0, (long (*)(struct file * , int , loff_t , loff_t ))0}; [L11265] rwlock_t global_state_lock ; [L22328-L22383] static struct data_cmd drbd_cmd_handler[43U] = { {1, 32UL, & receive_Data}, {1, 32UL, & receive_DataReply}, {1, 32UL, & receive_RSDataReply}, {0, 16UL, & receive_Barrier}, {1, 8UL, & receive_bitmap}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 8UL, & receive_UnplugRemote}, {0, 32UL, & receive_DataRequest}, {0, 32UL, & receive_DataRequest}, {1, 8UL, & receive_SyncParam}, {1, 32UL, & receive_protocol}, {0, 56UL, & receive_uuids}, {0, 40UL, & receive_sizes}, {0, 12UL, & receive_state}, {0, 16UL, & receive_sync_uuid}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 16UL, & receive_req_state}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 32UL, & receive_DataRequest}, {1, 32UL, & receive_DataRequest}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {1, 32UL, & receive_DataRequest}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {1, 8UL, & receive_SyncParam}, {1, 8UL, & receive_bitmap}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 16UL, & receive_skip}, {0, 24UL, & receive_out_of_sync}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}}; [L29586] int disable_sendpage ; [L29587] int allow_oos ; [L29589] int enable_faults ; [L29590] int fault_rate ; [L29591] int fault_devs ; [L29593] struct drbd_conf **minor_table ; [L29657] struct kmem_cache *drbd_request_cache ; [L29658] struct kmem_cache *drbd_ee_cache ; [L29659] struct kmem_cache *drbd_bm_ext_cache ; [L29660] struct kmem_cache *drbd_al_ext_cache ; [L29661] mempool_t *drbd_request_mempool ; [L29662] mempool_t *drbd_ee_mempool ; [L29663] struct page *drbd_pp_pool ; [L29664] spinlock_t drbd_pp_lock ; [L29665] int drbd_pp_vacant ; [L29666] wait_queue_head_t drbd_pp_wait ; [L29669] int proc_details ; [L30357-L30365] static struct mutex drbd_main_mutex = {{1}, {{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "drbd_main_mutex.wait_lock", 0, 0UL}}}}, {& drbd_main_mutex.wait_list, & drbd_main_mutex.wait_list}, (struct task_struct *)0, (char const *)0, (void *)(& drbd_main_mutex), {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "drbd_main_mutex", 0, 0UL}}; [L30376] static int fault_count ; [L30377] unsigned int minor_count = 32U; [L30378] unsigned int cn_idx = 8U; [L30379-L30383] char usermode_helper[80U] = { (char )'/', (char )'s', (char )'b', (char )'i', (char )'n', (char )'/', (char )'d', (char )'r', (char )'b', (char )'d', (char )'a', (char )'d', (char )'m', (char )'\000'}; [L30384-L30389] struct ratelimit_state drbd_ratelimit_state = {{{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "drbd_ratelimit_state.lock", 0, 0UL}}}}, 1250, 5, 0, 0, 0UL}; [L30390-L30401] static struct block_device_operations const drbd_ops = {& drbd_open, & drbd_release, (int (*)(struct block_device * , fmode_t , unsigned int , unsigned long ))0, (int (*)(struct block_device * , fmode_t , unsigned int , unsigned long ))0, (int (*)(struct block_device * , sector_t , void ** , unsigned long * ))0, (unsigned int (*)(struct gendisk * , unsigned int ))0, (int (*)(struct gendisk * ))0, (void (*)(struct gendisk * ))0, (int (*)(struct gendisk * ))0, (int (*)(struct block_device * , struct hd_geometry * ))0, (void (*)(struct block_device * , unsigned long ))0, & __this_module}; [L36025] static struct notifier_block drbd_notifier = {& drbd_notify_sys, (struct notifier_block *)0, 0}; [L37468-L37474] static char const *drbd_conn_s_names[24U] = { "StandAlone", "Disconnecting", "Unconnected", "Timeout", "BrokenPipe", "NetworkFailure", "ProtocolError", "TearDown", "WFConnection", "WFReportParams", "Connected", "StartingSyncS", "StartingSyncT", "WFBitMapS", "WFBitMapT", "WFSyncUUID", "SyncSource", "SyncTarget", "VerifyS", "VerifyT", "PausedSyncS", "PausedSyncT", "Ahead", "Behind"}; [L37475] static char const *drbd_role_s_names[3U] = { "Unknown", "Primary", "Secondary"}; [L37476-L37479] static char const *drbd_disk_s_names[9U] = { "Diskless", "Attaching", "Failed", "Negotiating", "Inconsistent", "Outdated", "DUnknown", "Consistent", "UpToDate"}; [L37480-L37485] static char const *drbd_state_sw_errors[20U] = { (char const *)0, "Multiple primaries not allowed by config", "Need access to UpToDate data", (char const *)0, "Can not resync without local disk", "Can not resync without remote disk", "Refusing to be Outdated while Connected", "Refusing to be Primary while peer is not outdated", "Can not start OV/resync since it is already active", "Can not disconnect a StandAlone device", "State change was refused by peer node", "Device is diskless, the requested operation requires a disk", "Device is held open by someone", "Have no net/connection configuration", "Need a verify algorithm to start online verify", "Need a connection to start verify or resync", "Disk state is lower than outdated", "Peer does not support protocol", "In transient state, retry after next state change", "Concurrent state changes detected and aborted"}; [L37804-L37889] static struct tag const tag_descriptions[85U] = { {(char const *)0, 0, 0}, {"primary_force", 32768, 4}, {"disk_size", 16384, 8}, {"backing_dev", 57344, 128}, {"meta_dev", 57344, 128}, {"meta_dev_idx", 8192, 4}, {"on_io_error", 0, 4}, {"fencing", 0, 4}, {"my_addr", 57344, 128}, {"peer_addr", 57344, 128}, {"shared_secret", 49152, 64}, {"cram_hmac_alg", 49152, 64}, {(char const *)0, 0, 0}, {(char const *)0, 0, 0}, {"timeout", 0, 4}, {"wire_protocol", 8192, 4}, {"try_connect_int", 0, 4}, {"ping_int", 0, 4}, {"max_epoch_size", 0, 4}, {"max_buffers", 0, 4}, {"unplug_watermark", 0, 4}, {"sndbuf_size", 0, 4}, {"ko_count", 0, 4}, {(char const *)0, 0, 0}, {"after_sb_0p", 0, 4}, {"after_sb_1p", 0, 4}, {"after_sb_2p", 0, 4}, {"want_lose", 32768, 4}, {"two_primaries", 32768, 4}, {"resize_size", 16384, 8}, {"rate", 0, 4}, {"after", 0, 4}, {"al_extents", 0, 4}, {"state_i", 0, 4}, {"uuids", 49152, 32}, {"uuids_flags", 0, 4}, {"use_degraded", 32768, 4}, {"use_bmbv", 32768, 4}, {"helper", 49152, 32}, {"rr_conflict", 0, 4}, {"ping_timeo", 0, 4}, {"always_asbp", 32768, 4}, {(char const *)0, 0, 0}, {"sync_progress", 0, 4}, {"integrity_alg", 49152, 64}, {"dump_ee_reason", 49152, 32}, {"seen_digest", 49152, 64}, {"calc_digest", 49152, 64}, {"ee_sector", 16384, 8}, {"ee_block_id", 16384, 8}, {"ee_data", 49152, 32768}, {"cpu_mask", 49152, 32}, {"verify_alg", 49152, 64}, {"no_disk_flush", 32768, 4}, {"no_md_flush", 32768, 4}, {(char const *)0, 0, 0}, {"max_bio_bvecs", 0, 4}, {"no_disk_barrier", 32768, 4}, {"no_disk_drain", 32768, 4}, {(char const *)0, 0, 0}, {"mind_af", 40960, 4}, {"no_cork", 32768, 4}, {"auto_sndbuf_size", 40960, 4}, {"clear_bm", 40960, 4}, {"csums_alg", 49152, 64}, {"use_rle", 32768, 4}, {"start_sector", 16384, 8}, {"rcvbuf_size", 0, 4}, {"resize_force", 32768, 4}, {"no_resync", 40960, 4}, {"dry_run", 40960, 4}, {(char const *)0, 0, 0}, {(char const *)0, 0, 0}, {(char const *)0, 0, 0}, {(char const *)0, 0, 0}, {"on_no_data", 0, 4}, {"c_plan_ahead", 0, 4}, {"c_delay_target", 0, 4}, {"c_fill_target", 0, 4}, {"c_max_rate", 0, 4}, {"c_min_rate", 0, 4}, {"on_congestion", 0, 4}, {"cong_fill", 0, 4}, {"cong_extents", 0, 4}, {"force", 32768, 4}}; [L37894] static char *drbd_m_holder = (char *)"Hands off! this is DRBD\'s meta data device."; [L48088-L48121] static struct cn_handler_struct cnd_table[27U] = { {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {& drbd_nl_primary, 0}, {& drbd_nl_secondary, 0}, {& drbd_nl_disk_conf, 0}, {& drbd_nl_detach, 0}, {& drbd_nl_net_conf, 0}, {& drbd_nl_disconnect, 0}, {& drbd_nl_resize, 0}, {& drbd_nl_syncer_conf, 0}, {& drbd_nl_invalidate, 0}, {& drbd_nl_invalidate_peer, 0}, {& drbd_nl_pause_sync, 0}, {& drbd_nl_resume_sync, 0}, {& drbd_nl_suspend_io, 0}, {& drbd_nl_resume_io, 0}, {& drbd_nl_outdate, 0}, {& drbd_nl_get_config, 1312}, {& drbd_nl_get_state, 16}, {& drbd_nl_get_uuids, 48}, {& drbd_nl_get_timeout_flag, 8}, {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {& drbd_nl_start_ov, 0}, {& drbd_nl_new_c_uuid, 0}}; [L48229] static atomic_t drbd_nl_seq = {2}; VAL [__this_module={-1510:1511}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, usermode_helper={1500:0}] [L10746] struct inode *var_group1 ; [L10747] struct file *var_group2 ; [L10748] int res_drbd_proc_open_4 ; [L10749] int ldv_s_drbd_proc_fops_file_operations ; [L10750] int tmp ; [L10751] int tmp___0 ; [L10754] ldv_s_drbd_proc_fops_file_operations = 0 [L10755] LDV_IN_INTERRUPT = 1 [L10756] FCALL ldv_initialize() [L10802] tmp___0 = __VERIFIER_nondet_int() [L10804] COND TRUE tmp___0 != 0 VAL [__this_module={-1510:1511}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_drbd_proc_fops_file_operations=0, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, tmp___0=1, 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=1, usermode_helper={1500:0}] [L10772] COND TRUE ldv_s_drbd_proc_fops_file_operations == 0 [L10774] CALL, EXPR drbd_proc_open(var_group1, var_group2) [L10716] struct proc_dir_entry *tmp ; [L10717] int tmp___0 ; [L10718] int tmp___1 ; [L10721] CALL, EXPR ldv_try_module_get_1(& __this_module) [L10821] int tmp ; [L10824] CALL, EXPR ldv_try_module_get(module) [L10101] int module_get_succeeded ; 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, 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 [\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 [__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}, proc_details=0, tag_descriptions={1508:0}, tmp=1, usermode_helper={1500:0}] [L10721] RET, EXPR ldv_try_module_get_1(& __this_module) [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 [\result={1152921504606846981:0}, __mptr={1152921504606846981:-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={1152921504606846981:-1355835689417651968512}, inode={1152921504606846981:-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 [\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={1152921504606847001:1152921504606846990}, file={1152921504606847001:1152921504606846990}, global_state_lock={1494:0}, inode={1152921504606846981:-1355835689417651968512}, inode={1152921504606846981:-1355835689417651968512}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, tmp={1152921504606846983:-86}, tmp___0=1512, tmp___1=1, usermode_helper={1500:0}] [L10774] RET, EXPR drbd_proc_open(var_group1, var_group2) [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=1, usermode_helper={1500:0}, var_group1={1152921504606846981:-1355835689417651968512}, var_group2={1152921504606847001:1152921504606846990}] [L10815] CALL ldv_check_final_state() [L10153] COND TRUE ldv_module_refcounter != 1 [L10155] CALL ldv_blast_assert() [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}] - UnprovableResult [Line: 10085]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 8.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 166 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 166 mSDsluCounter, 345 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 182 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 163 mSDtfsCounter, 35 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=3, InterpolantAutomatonStates: 11, 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, 37 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.7s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-22 15:00:11,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/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_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:00:14,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:00:14,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:00:14,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:00:14,221 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:00:14,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:00:14,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:00:14,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:00:14,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:00:14,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:00:14,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:00:14,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:00:14,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:00:14,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:00:14,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:00:14,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:00:14,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:00:14,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:00:14,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:00:14,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:00:14,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:00:14,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:00:14,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:00:14,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:00:14,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:00:14,288 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:00:14,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:00:14,289 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:00:14,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:00:14,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:00:14,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:00:14,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:00:14,295 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:00:14,296 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:00:14,298 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:00:14,298 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:00:14,299 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:00:14,299 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:00:14,300 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:00:14,302 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:00:14,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:00:14,303 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-22 15:00:14,350 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:00:14,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:00:14,351 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:00:14,351 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:00:14,353 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:00:14,353 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:00:14,354 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:00:14,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:00:14,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:00:14,354 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:00:14,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:00:14,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:00:14,356 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 15:00:14,356 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-22 15:00:14,356 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-22 15:00:14,357 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:00:14,357 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:00:14,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:00:14,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:00:14,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:00:14,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:00:14,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:00:14,358 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:00:14,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:00:14,359 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:00:14,359 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-22 15:00:14,359 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-22 15:00:14,359 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 15:00:14,360 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 15:00:14,360 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:00:14,360 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:00:14,360 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-22 15:00:14,361 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_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 [2021-11-22 15:00:14,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:00:14,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:00:14,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:00:14,842 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:00:14,843 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:00:14,846 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2021-11-22 15:00:14,925 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/data/b0dea4be1/cd2cabe8e69447daa21896792ff74ff0/FLAGbed09ddc4 [2021-11-22 15:00:16,760 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:00:16,762 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2021-11-22 15:00:16,912 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/data/b0dea4be1/cd2cabe8e69447daa21896792ff74ff0/FLAGbed09ddc4 [2021-11-22 15:00:17,359 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/data/b0dea4be1/cd2cabe8e69447daa21896792ff74ff0 [2021-11-22 15:00:17,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:00:17,363 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:00:17,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:00:17,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:00:17,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:00:17,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:00:17" (1/1) ... [2021-11-22 15:00:17,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@577b8a1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:00:17, skipping insertion in model container [2021-11-22 15:00:17,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:00:17" (1/1) ... [2021-11-22 15:00:17,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:00:17,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:00:21,778 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_de016957-68ce-4eb0-b48f-04f38cde8c33/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2021-11-22 15:00:33,777 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:00:33,827 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-22 15:00:34,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:00:34,394 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_de016957-68ce-4eb0-b48f-04f38cde8c33/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2021-11-22 15:00:35,591 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:00:35,645 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:00:36,203 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_de016957-68ce-4eb0-b48f-04f38cde8c33/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2021-11-22 15:00:37,591 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:00:38,012 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:00:38,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:00:38 WrapperNode [2021-11-22 15:00:38,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:00:38,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:00:38,015 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:00:38,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:00:38,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:00:38" (1/1) ... [2021-11-22 15:00:38,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:00:38" (1/1) ... [2021-11-22 15:00:38,791 INFO L137 Inliner]: procedures = 910, calls = 20421, calls flagged for inlining = 4210, calls inlined = 18, statements flattened = 2909 [2021-11-22 15:00:38,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:00:38,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:00:38,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:00:38,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:00:38,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:00:38" (1/1) ... [2021-11-22 15:00:38,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:00:38" (1/1) ... [2021-11-22 15:00:38,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:00:38" (1/1) ... [2021-11-22 15:00:38,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:00:38" (1/1) ... [2021-11-22 15:00:38,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:00:38" (1/1) ... [2021-11-22 15:00:38,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:00:38" (1/1) ... [2021-11-22 15:00:38,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:00:38" (1/1) ... [2021-11-22 15:00:39,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:00:39,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:00:39,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:00:39,014 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:00:39,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:00:38" (1/1) ... [2021-11-22 15:00:39,023 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:00:39,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:00:39,051 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:00:39,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:00:39,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:00:39,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:00:39,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:00:39,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 15:00:39,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-22 15:00:39,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-22 15:00:39,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-22 15:00:39,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-22 15:00:39,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 15:00:39,606 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:00:39,608 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:00:39,655 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-22 15:02:41,470 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2021-11-22 15:02:41,471 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2021-11-22 15:02:41,471 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:02:41,477 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:02:41,477 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 15:02:41,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:02:41 BoogieIcfgContainer [2021-11-22 15:02:41,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:02:41,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:02:41,482 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:02:41,486 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:02:41,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:00:17" (1/3) ... [2021-11-22 15:02:41,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16afd0d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:02:41, skipping insertion in model container [2021-11-22 15:02:41,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:00:38" (2/3) ... [2021-11-22 15:02:41,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16afd0d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:02:41, skipping insertion in model container [2021-11-22 15:02:41,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:02:41" (3/3) ... [2021-11-22 15:02:41,490 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2021-11-22 15:02:41,496 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:02:41,496 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-22 15:02:41,552 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:02:41,560 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 15:02:41,560 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-22 15:02:41,575 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 41 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:02:41,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-22 15:02:41,581 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:02:41,582 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:02:41,582 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:02:41,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:02:41,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1153293514, now seen corresponding path program 1 times [2021-11-22 15:02:41,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:02:41,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1930753346] [2021-11-22 15:02:41,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:02:41,620 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:02:41,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:02:41,623 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:02:41,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-22 15:02:45,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:02:46,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 5735 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 15:02:46,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:02:46,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:02:46,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:02:46,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:02:46,300 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:02:46,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1930753346] [2021-11-22 15:02:46,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1930753346] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:02:46,301 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:02:46,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-22 15:02:46,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487987540] [2021-11-22 15:02:46,305 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:02:46,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:02:46,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:02:46,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:02:46,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:02:46,354 INFO L87 Difference]: Start difference. First operand has 42 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 41 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:02:46,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:02:46,446 INFO L93 Difference]: Finished difference Result 109 states and 146 transitions. [2021-11-22 15:02:46,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:02:46,450 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-22 15:02:46,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:02:46,463 INFO L225 Difference]: With dead ends: 109 [2021-11-22 15:02:46,463 INFO L226 Difference]: Without dead ends: 64 [2021-11-22 15:02:46,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:02:46,476 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 38 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:02:46,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 85 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:02:46,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-11-22 15:02:46,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2021-11-22 15:02:46,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 60 states have (on average 1.35) internal successors, (81), 61 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:02:46,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 81 transitions. [2021-11-22 15:02:46,536 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 81 transitions. Word has length 9 [2021-11-22 15:02:46,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:02:46,537 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 81 transitions. [2021-11-22 15:02:46,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:02:46,538 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 81 transitions. [2021-11-22 15:02:46,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-22 15:02:46,539 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:02:46,539 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:02:46,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-22 15:02:46,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:02:46,753 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:02:46,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:02:46,754 INFO L85 PathProgramCache]: Analyzing trace with hash -125207990, now seen corresponding path program 1 times [2021-11-22 15:02:46,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:02:46,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1576474364] [2021-11-22 15:02:46,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:02:46,769 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:02:46,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:02:46,770 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:02:46,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-22 15:02:50,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:02:50,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 5754 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 15:02:50,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:02:51,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:02:51,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:02:51,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:02:51,190 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:02:51,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1576474364] [2021-11-22 15:02:51,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1576474364] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:02:51,190 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:02:51,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-22 15:02:51,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495706628] [2021-11-22 15:02:51,191 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:02:51,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:02:51,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:02:51,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:02:51,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:02:51,194 INFO L87 Difference]: Start difference. First operand 62 states and 81 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:02:51,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:02:51,331 INFO L93 Difference]: Finished difference Result 153 states and 213 transitions. [2021-11-22 15:02:51,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:02:51,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-22 15:02:51,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:02:51,336 INFO L225 Difference]: With dead ends: 153 [2021-11-22 15:02:51,336 INFO L226 Difference]: Without dead ends: 93 [2021-11-22 15:02:51,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:02:51,338 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 28 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:02:51,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 87 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:02:51,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-11-22 15:02:51,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2021-11-22 15:02:51,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 91 states have (on average 1.3846153846153846) internal successors, (126), 92 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:02:51,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 126 transitions. [2021-11-22 15:02:51,371 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 126 transitions. Word has length 12 [2021-11-22 15:02:51,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:02:51,372 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 126 transitions. [2021-11-22 15:02:51,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:02:51,372 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 126 transitions. [2021-11-22 15:02:51,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-22 15:02:51,374 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:02:51,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:02:51,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-22 15:02:51,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:02:51,575 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:02:51,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:02:51,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1191699164, now seen corresponding path program 1 times [2021-11-22 15:02:51,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:02:51,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775248358] [2021-11-22 15:02:51,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:02:51,585 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:02:51,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:02:51,586 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:02:51,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-22 15:02:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:02:55,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 5768 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 15:02:55,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:02:55,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:02:55,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:02:56,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:02:56,072 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:02:56,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1775248358] [2021-11-22 15:02:56,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1775248358] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:02:56,072 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:02:56,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-22 15:02:56,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106591144] [2021-11-22 15:02:56,073 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:02:56,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-22 15:02:56,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:02:56,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-22 15:02:56,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-22 15:02:56,075 INFO L87 Difference]: Start difference. First operand 93 states and 126 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:02:56,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:02:56,388 INFO L93 Difference]: Finished difference Result 260 states and 354 transitions. [2021-11-22 15:02:56,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 15:02:56,390 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-22 15:02:56,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:02:56,392 INFO L225 Difference]: With dead ends: 260 [2021-11-22 15:02:56,393 INFO L226 Difference]: Without dead ends: 211 [2021-11-22 15:02:56,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-22 15:02:56,395 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 145 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 15:02:56,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 457 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 15:02:56,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-11-22 15:02:56,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 96. [2021-11-22 15:02:56,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 94 states have (on average 1.372340425531915) internal successors, (129), 95 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:02:56,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 129 transitions. [2021-11-22 15:02:56,418 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 129 transitions. Word has length 20 [2021-11-22 15:02:56,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:02:56,418 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 129 transitions. [2021-11-22 15:02:56,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:02:56,419 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 129 transitions. [2021-11-22 15:02:56,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-22 15:02:56,420 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:02:56,420 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:02:56,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-22 15:02:56,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:02:56,621 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:02:56,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:02:56,622 INFO L85 PathProgramCache]: Analyzing trace with hash 626026542, now seen corresponding path program 1 times [2021-11-22 15:02:56,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:02:56,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [233432594] [2021-11-22 15:02:56,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:02:56,629 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:02:56,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:02:56,635 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:02:56,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-22 15:04:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:04:36,559 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 15:05:51,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:06:18,875 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-22 15:06:18,876 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 15:06:18,877 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-22 15:06:18,879 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-22 15:06:18,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-22 15:06:19,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:06:19,097 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-22 15:06:19,101 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 15:06:19,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 03:06:19 BoogieIcfgContainer [2021-11-22 15:06:19,263 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 15:06:19,264 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 15:06:19,264 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 15:06:19,264 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 15:06:19,265 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:02:41" (3/4) ... [2021-11-22 15:06:19,268 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-22 15:06:19,268 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 15:06:19,269 INFO L158 Benchmark]: Toolchain (without parser) took 361905.51ms. Allocated memory was 107.0MB in the beginning and 5.4GB in the end (delta: 5.3GB). Free memory was 52.0MB in the beginning and 2.3GB in the end (delta: -2.3GB). Peak memory consumption was 3.0GB. Max. memory is 16.1GB. [2021-11-22 15:06:19,270 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 65.0MB. Free memory is still 45.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:06:19,270 INFO L158 Benchmark]: CACSL2BoogieTranslator took 20648.59ms. Allocated memory was 107.0MB in the beginning and 998.2MB in the end (delta: 891.3MB). Free memory was 52.0MB in the beginning and 763.7MB in the end (delta: -711.7MB). Peak memory consumption was 343.9MB. Max. memory is 16.1GB. [2021-11-22 15:06:19,271 INFO L158 Benchmark]: Boogie Procedure Inliner took 776.93ms. Allocated memory is still 998.2MB. Free memory was 763.7MB in the beginning and 720.7MB in the end (delta: 43.0MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2021-11-22 15:06:19,271 INFO L158 Benchmark]: Boogie Preprocessor took 217.52ms. Allocated memory is still 998.2MB. Free memory was 720.7MB in the beginning and 707.1MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-22 15:06:19,272 INFO L158 Benchmark]: RCFGBuilder took 122466.04ms. Allocated memory was 998.2MB in the beginning and 5.4GB in the end (delta: 4.4GB). Free memory was 707.1MB in the beginning and 2.8GB in the end (delta: -2.1GB). Peak memory consumption was 3.2GB. Max. memory is 16.1GB. [2021-11-22 15:06:19,272 INFO L158 Benchmark]: TraceAbstraction took 217781.55ms. Allocated memory is still 5.4GB. Free memory was 2.8GB in the beginning and 2.3GB in the end (delta: 520.1MB). Peak memory consumption was 520.1MB. Max. memory is 16.1GB. [2021-11-22 15:06:19,273 INFO L158 Benchmark]: Witness Printer took 4.55ms. Allocated memory is still 5.4GB. Free memory was 2.3GB in the beginning and 2.3GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 15:06:19,275 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 65.0MB. Free memory is still 45.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 20648.59ms. Allocated memory was 107.0MB in the beginning and 998.2MB in the end (delta: 891.3MB). Free memory was 52.0MB in the beginning and 763.7MB in the end (delta: -711.7MB). Peak memory consumption was 343.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 776.93ms. Allocated memory is still 998.2MB. Free memory was 763.7MB in the beginning and 720.7MB in the end (delta: 43.0MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 217.52ms. Allocated memory is still 998.2MB. Free memory was 720.7MB in the beginning and 707.1MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * RCFGBuilder took 122466.04ms. Allocated memory was 998.2MB in the beginning and 5.4GB in the end (delta: 4.4GB). Free memory was 707.1MB in the beginning and 2.8GB in the end (delta: -2.1GB). Peak memory consumption was 3.2GB. Max. memory is 16.1GB. * TraceAbstraction took 217781.55ms. Allocated memory is still 5.4GB. Free memory was 2.8GB in the beginning and 2.3GB in the end (delta: 520.1MB). Peak memory consumption was 520.1MB. Max. memory is 16.1GB. * Witness Printer took 4.55ms. Allocated memory is still 5.4GB. Free memory was 2.3GB in the beginning and 2.3GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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={0:-9223372036854775808}, 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={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_drbd_proc_fops_file_operations=0, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, tmp___0=2147483648, usermode_helper={1500:0}] [L10761] tmp = __VERIFIER_nondet_int() [L10763] COND TRUE tmp == 0 VAL [__this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_drbd_proc_fops_file_operations=0, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, tmp=0, tmp___0=2147483648, usermode_helper={1500:0}] [L10772] COND TRUE ldv_s_drbd_proc_fops_file_operations == 0 [L10774] CALL, EXPR drbd_proc_open(var_group1, var_group2) [L10716] struct proc_dir_entry *tmp ; [L10717] int tmp___0 ; [L10718] int tmp___1 ; [L10721] CALL, EXPR ldv_try_module_get_1(& __this_module) [L10821] int tmp ; [L10824] CALL, EXPR ldv_try_module_get(module) [L10101] int module_get_succeeded ; VAL [__this_module={0:-9223372036854775808}, 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={0:-9223372036854775808}, module={0:-9223372036854775808}, 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 [\result=1, __this_module={0:-9223372036854775808}, 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={0:-9223372036854775808}, module={0:-9223372036854775808}, 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 [__this_module={0:-9223372036854775808}, 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={0:-9223372036854775808}, proc_details=0, tag_descriptions={1508:0}, tmp=1, usermode_helper={1500:0}] [L10721] RET, EXPR ldv_try_module_get_1(& __this_module) [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 [\result={0:-9223372019641427456}, __mptr={0:17213423616}, __this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1494:0}, inode={0:17213423616}, inode={0:17213423616}, 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 [\result=-2080372736, __this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1509:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1495:0}, drbd_conn_s_names={1504:0}, drbd_disk_s_names={1506:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1499:0}, drbd_nl_seq={1510:0}, drbd_notifier={1503:0}, drbd_ops={1502:0}, drbd_pp_lock={1497:0}, drbd_pp_pool={1496:0}, drbd_pp_vacant=0, drbd_pp_wait={1498:0}, drbd_proc={0:0}, drbd_proc_fops={1493:0}, drbd_ratelimit_state={1501:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1505:0}, drbd_state_sw_errors={1507:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, file={1511:1512}, file={1511:1512}, global_state_lock={1494:0}, inode={0:17213423616}, inode={0:17213423616}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1508:0}, tmp={0:8797166764032}, tmp___0=2214594560, tmp___1=1, usermode_helper={1500:0}] [L10774] RET, EXPR drbd_proc_open(var_group1, var_group2) [L10774] res_drbd_proc_open_4 = drbd_proc_open(var_group1, var_group2) [L10775] FCALL ldv_check_return_value(res_drbd_proc_open_4) [L10777] COND TRUE res_drbd_proc_open_4 != 0 VAL [__this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={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=2214594560, tag_descriptions={1508:0}, tmp=0, tmp___0=2147483648, usermode_helper={1500:0}, var_group1={0:17213423616}, var_group2={1511:1512}] [L10815] CALL ldv_check_final_state() [L10153] COND TRUE ldv_module_refcounter != 1 [L10155] CALL ldv_blast_assert() [L10085] reach_error() VAL [__this_module={0:-9223372036854775808}, 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}] - UnprovableResult [Line: 10085]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 217.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 211 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 211 mSDsluCounter, 629 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 442 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 59 IncrementalHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 187 mSDtfsCounter, 59 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred 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, 117 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 111.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 154 SizeOfPredicates, 3 NumberOfNonLiveVariables, 17257 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-22 15:06:19,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de016957-68ce-4eb0-b48f-04f38cde8c33/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample