./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-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 95a24ba0353d4bc7e72f0cdf9f1b0fe8f137a7a21d817fe227397525e1c520da --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 17:10:11,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 17:10:11,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 17:10:11,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 17:10:11,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 17:10:11,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 17:10:11,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 17:10:11,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 17:10:11,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 17:10:11,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 17:10:11,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 17:10:11,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 17:10:11,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 17:10:11,462 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 17:10:11,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 17:10:11,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 17:10:11,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 17:10:11,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 17:10:11,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 17:10:11,475 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 17:10:11,476 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 17:10:11,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 17:10:11,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 17:10:11,478 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 17:10:11,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 17:10:11,483 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 17:10:11,484 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 17:10:11,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 17:10:11,485 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 17:10:11,486 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 17:10:11,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 17:10:11,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 17:10:11,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 17:10:11,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 17:10:11,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 17:10:11,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 17:10:11,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 17:10:11,490 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 17:10:11,490 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 17:10:11,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 17:10:11,492 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 17:10:11,492 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 17:10:11,525 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 17:10:11,525 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 17:10:11,525 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 17:10:11,526 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 17:10:11,526 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 17:10:11,526 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 17:10:11,527 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 17:10:11,527 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 17:10:11,535 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 17:10:11,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 17:10:11,536 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 17:10:11,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 17:10:11,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 17:10:11,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 17:10:11,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 17:10:11,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 17:10:11,537 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 17:10:11,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 17:10:11,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 17:10:11,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 17:10:11,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 17:10:11,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:10:11,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 17:10:11,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 17:10:11,538 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 17:10:11,538 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 17:10:11,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 17:10:11,538 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 17:10:11,538 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 17:10:11,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 17:10:11,538 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 17:10:11,539 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95a24ba0353d4bc7e72f0cdf9f1b0fe8f137a7a21d817fe227397525e1c520da [2021-12-14 17:10:11,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 17:10:11,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 17:10:11,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 17:10:11,781 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 17:10:11,782 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 17:10:11,783 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-1.i [2021-12-14 17:10:11,828 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8d5bb55c/039bf0c8949c47eb909945d01de1a701/FLAGee61f24e4 [2021-12-14 17:10:12,903 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 17:10:12,904 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-1.i [2021-12-14 17:10:13,000 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8d5bb55c/039bf0c8949c47eb909945d01de1a701/FLAGee61f24e4 [2021-12-14 17:10:13,304 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8d5bb55c/039bf0c8949c47eb909945d01de1a701 [2021-12-14 17:10:13,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 17:10:13,308 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 17:10:13,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 17:10:13,310 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 17:10:13,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 17:10:13,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:10:13" (1/1) ... [2021-12-14 17:10:13,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c2691d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:10:13, skipping insertion in model container [2021-12-14 17:10:13,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:10:13" (1/1) ... [2021-12-14 17:10:13,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 17:10:13,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 17:10:17,014 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-1.i[281164,281177] [2021-12-14 17:10:27,449 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:10:27,476 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 17:10:27,709 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-1.i[281164,281177] [2021-12-14 17:10:28,637 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:10:28,913 INFO L208 MainTranslator]: Completed translation [2021-12-14 17:10:28,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:10:28 WrapperNode [2021-12-14 17:10:28,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 17:10:28,916 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 17:10:28,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 17:10:28,916 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 17:10:28,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:10:28" (1/1) ... [2021-12-14 17:10:29,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:10:28" (1/1) ... [2021-12-14 17:10:29,458 INFO L137 Inliner]: procedures = 895, calls = 20426, calls flagged for inlining = 349, calls inlined = 37, statements flattened = 3475 [2021-12-14 17:10:29,459 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 17:10:29,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 17:10:29,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 17:10:29,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 17:10:29,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:10:28" (1/1) ... [2021-12-14 17:10:29,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:10:28" (1/1) ... [2021-12-14 17:10:29,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:10:28" (1/1) ... [2021-12-14 17:10:29,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:10:28" (1/1) ... [2021-12-14 17:10:29,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:10:28" (1/1) ... [2021-12-14 17:10:29,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:10:28" (1/1) ... [2021-12-14 17:10:29,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:10:28" (1/1) ... [2021-12-14 17:10:29,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 17:10:29,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 17:10:29,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 17:10:29,641 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 17:10:29,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:10:28" (1/1) ... [2021-12-14 17:10:29,647 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:10:29,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:10:29,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 17:10:29,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 17:10:29,706 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_create [2021-12-14 17:10:29,706 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_create [2021-12-14 17:10:29,706 INFO L130 BoogieDeclarations]: Found specification of procedure bm_free_pages [2021-12-14 17:10:29,706 INFO L138 BoogieDeclarations]: Found implementation of procedure bm_free_pages [2021-12-14 17:10:29,706 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_queue_work_front [2021-12-14 17:10:29,707 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_queue_work_front [2021-12-14 17:10:29,707 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create [2021-12-14 17:10:29,707 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create [2021-12-14 17:10:29,707 INFO L130 BoogieDeclarations]: Found specification of procedure page_chain_next [2021-12-14 17:10:29,707 INFO L138 BoogieDeclarations]: Found implementation of procedure page_chain_next [2021-12-14 17:10:29,707 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-14 17:10:29,707 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-14 17:10:29,707 INFO L130 BoogieDeclarations]: Found specification of procedure minor_to_mdev [2021-12-14 17:10:29,707 INFO L138 BoogieDeclarations]: Found implementation of procedure minor_to_mdev [2021-12-14 17:10:29,708 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-14 17:10:29,708 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-14 17:10:29,708 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-14 17:10:29,708 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-14 17:10:29,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 17:10:29,708 INFO L130 BoogieDeclarations]: Found specification of procedure page_chain_add [2021-12-14 17:10:29,708 INFO L138 BoogieDeclarations]: Found implementation of procedure page_chain_add [2021-12-14 17:10:29,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 17:10:29,708 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-14 17:10:29,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-14 17:10:29,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 17:10:29,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 17:10:29,709 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2021-12-14 17:10:29,709 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2021-12-14 17:10:29,709 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-14 17:10:29,709 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-14 17:10:29,709 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_free_bc [2021-12-14 17:10:29,710 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_free_bc [2021-12-14 17:10:29,710 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-14 17:10:29,710 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-14 17:10:29,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 17:10:29,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 17:10:29,710 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-14 17:10:29,710 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-14 17:10:29,710 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_release_ee [2021-12-14 17:10:29,711 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_release_ee [2021-12-14 17:10:29,711 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 17:10:29,711 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 17:10:29,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 17:10:29,711 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-14 17:10:29,712 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-14 17:10:29,712 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2021-12-14 17:10:29,712 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2021-12-14 17:10:29,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 17:10:29,712 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-12-14 17:10:29,712 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-12-14 17:10:29,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-12-14 17:10:29,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-12-14 17:10:29,713 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-14 17:10:29,713 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-14 17:10:29,713 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-14 17:10:29,713 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-14 17:10:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-14 17:10:29,714 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-14 17:10:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 17:10:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-14 17:10:29,715 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-14 17:10:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure kernel_sock_shutdown [2021-12-14 17:10:29,715 INFO L138 BoogieDeclarations]: Found implementation of procedure kernel_sock_shutdown [2021-12-14 17:10:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2021-12-14 17:10:29,715 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2021-12-14 17:10:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure page_chain_tail [2021-12-14 17:10:29,715 INFO L138 BoogieDeclarations]: Found implementation of procedure page_chain_tail [2021-12-14 17:10:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_unhashed [2021-12-14 17:10:29,716 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_unhashed [2021-12-14 17:10:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-14 17:10:29,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-14 17:10:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure lc_destroy [2021-12-14 17:10:29,716 INFO L138 BoogieDeclarations]: Found implementation of procedure lc_destroy [2021-12-14 17:10:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_free_mdev [2021-12-14 17:10:29,717 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_free_mdev [2021-12-14 17:10:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure sock_release [2021-12-14 17:10:29,717 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_release [2021-12-14 17:10:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 17:10:29,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 17:10:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_free_sock [2021-12-14 17:10:29,717 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_free_sock [2021-12-14 17:10:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free [2021-12-14 17:10:29,718 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_free [2021-12-14 17:10:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-14 17:10:29,718 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-14 17:10:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2021-12-14 17:10:29,718 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2021-12-14 17:10:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure crypto_hash_tfm [2021-12-14 17:10:29,718 INFO L138 BoogieDeclarations]: Found implementation of procedure crypto_hash_tfm [2021-12-14 17:10:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 17:10:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_buildtag [2021-12-14 17:10:29,719 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_buildtag [2021-12-14 17:10:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-14 17:10:29,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-14 17:10:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 17:10:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_free_some_ee [2021-12-14 17:10:29,720 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_free_some_ee [2021-12-14 17:10:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2021-12-14 17:10:29,720 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2021-12-14 17:10:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2021-12-14 17:10:29,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2021-12-14 17:10:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-14 17:10:29,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-14 17:10:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_free_resources [2021-12-14 17:10:29,721 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_free_resources [2021-12-14 17:10:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure tl_cleanup [2021-12-14 17:10:29,722 INFO L138 BoogieDeclarations]: Found implementation of procedure tl_cleanup [2021-12-14 17:10:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_return [2021-12-14 17:10:29,722 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_return [2021-12-14 17:10:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure bm_vk_free [2021-12-14 17:10:29,722 INFO L138 BoogieDeclarations]: Found implementation of procedure bm_vk_free [2021-12-14 17:10:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure crypto_free_hash [2021-12-14 17:10:29,722 INFO L138 BoogieDeclarations]: Found implementation of procedure crypto_free_hash [2021-12-14 17:10:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-14 17:10:29,723 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-14 17:10:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_put [2021-12-14 17:10:29,723 INFO L138 BoogieDeclarations]: Found implementation of procedure blkdev_put [2021-12-14 17:10:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure up [2021-12-14 17:10:29,724 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2021-12-14 17:10:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure free_cpumask_var [2021-12-14 17:10:29,725 INFO L138 BoogieDeclarations]: Found implementation of procedure free_cpumask_var [2021-12-14 17:10:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_pp_free [2021-12-14 17:10:29,726 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_pp_free [2021-12-14 17:10:29,727 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-12-14 17:10:29,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-12-14 17:10:29,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 17:10:29,727 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_destroy_mempools [2021-12-14 17:10:29,727 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_destroy_mempools [2021-12-14 17:10:29,731 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-14 17:10:29,732 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-14 17:10:29,732 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_cleanup [2021-12-14 17:10:29,732 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_cleanup [2021-12-14 17:10:29,732 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_bm_cleanup [2021-12-14 17:10:29,732 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_bm_cleanup [2021-12-14 17:10:29,732 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 17:10:29,732 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 17:10:29,732 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2021-12-14 17:10:29,732 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2021-12-14 17:10:29,733 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2021-12-14 17:10:29,733 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2021-12-14 17:10:29,733 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-14 17:10:29,733 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-14 17:10:29,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 17:10:29,733 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_free_tl_hash [2021-12-14 17:10:29,733 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_free_tl_hash [2021-12-14 17:10:30,215 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 17:10:30,217 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 17:10:30,719 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 17:11:24,536 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##50: assume false; [2021-12-14 17:11:24,536 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##51: assume !false; [2021-12-14 17:11:24,549 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 17:11:24,557 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 17:11:24,557 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 17:11:24,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:11:24 BoogieIcfgContainer [2021-12-14 17:11:24,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 17:11:24,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 17:11:24,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 17:11:24,572 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 17:11:24,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:10:13" (1/3) ... [2021-12-14 17:11:24,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f787f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:11:24, skipping insertion in model container [2021-12-14 17:11:24,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:10:28" (2/3) ... [2021-12-14 17:11:24,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f787f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:11:24, skipping insertion in model container [2021-12-14 17:11:24,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:11:24" (3/3) ... [2021-12-14 17:11:24,575 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-drbd-drbd.ko.cil.out-1.i [2021-12-14 17:11:24,579 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 17:11:24,579 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 17:11:24,637 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 17:11:24,642 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 17:11:24,643 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 17:11:24,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 595 states, 398 states have (on average 1.2311557788944723) internal successors, (490), 418 states have internal predecessors, (490), 129 states have call successors, (129), 66 states have call predecessors, (129), 66 states have return successors, (129), 127 states have call predecessors, (129), 129 states have call successors, (129) [2021-12-14 17:11:24,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-14 17:11:24,684 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:11:24,685 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:11:24,685 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:11:24,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:11:24,689 INFO L85 PathProgramCache]: Analyzing trace with hash 254101982, now seen corresponding path program 1 times [2021-12-14 17:11:24,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:11:24,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641041405] [2021-12-14 17:11:24,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:11:24,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:11:25,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:25,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:11:25,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:11:25,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641041405] [2021-12-14 17:11:25,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641041405] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:11:25,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:11:25,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 17:11:25,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553259834] [2021-12-14 17:11:25,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:11:25,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 17:11:25,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:11:25,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 17:11:25,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:11:25,452 INFO L87 Difference]: Start difference. First operand has 595 states, 398 states have (on average 1.2311557788944723) internal successors, (490), 418 states have internal predecessors, (490), 129 states have call successors, (129), 66 states have call predecessors, (129), 66 states have return successors, (129), 127 states have call predecessors, (129), 129 states have call successors, (129) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 17:11:25,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:11:25,587 INFO L93 Difference]: Finished difference Result 1160 states and 1470 transitions. [2021-12-14 17:11:25,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 17:11:25,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-12-14 17:11:25,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:11:25,599 INFO L225 Difference]: With dead ends: 1160 [2021-12-14 17:11:25,599 INFO L226 Difference]: Without dead ends: 0 [2021-12-14 17:11:25,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:11:25,613 INFO L933 BasicCegarLoop]: 740 mSDtfsCounter, 734 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 17:11:25,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [734 Valid, 740 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 17:11:25,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-14 17:11:25,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-14 17:11:25,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-12-14 17:11:25,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-14 17:11:25,630 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-12-14 17:11:25,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:11:25,631 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-14 17:11:25,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 17:11:25,631 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-14 17:11:25,631 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.