./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.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 --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 e3b9005361fd0095f8dbb62f5fee3acdc88198cbc01de43b11979176397f6891 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 07:59:47,610 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 07:59:47,664 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-13 07:59:47,668 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 07:59:47,669 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 07:59:47,694 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 07:59:47,696 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 07:59:47,697 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 07:59:47,697 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 07:59:47,697 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 07:59:47,698 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 07:59:47,698 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 07:59:47,699 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 07:59:47,700 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 07:59:47,700 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 07:59:47,701 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 07:59:47,701 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 07:59:47,701 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 07:59:47,701 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 07:59:47,702 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 07:59:47,702 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 07:59:47,702 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 07:59:47,705 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 07:59:47,705 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 07:59:47,705 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 07:59:47,706 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 07:59:47,720 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 07:59:47,720 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 07:59:47,720 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 07:59:47,721 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 07:59:47,721 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 07:59:47,722 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 07:59:47,722 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 07:59:47,722 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 07:59:47,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 07:59:47,722 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 07:59:47,722 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 07:59:47,723 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 07:59:47,723 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 07:59:47,723 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3b9005361fd0095f8dbb62f5fee3acdc88198cbc01de43b11979176397f6891 [2024-10-13 07:59:47,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 07:59:47,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 07:59:47,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 07:59:47,992 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 07:59:47,992 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 07:59:47,993 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2024-10-13 07:59:49,251 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 07:59:49,624 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 07:59:49,625 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2024-10-13 07:59:49,658 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c8813161/201e959ac9c343dbb1da15249063c29b/FLAG04d561a13 [2024-10-13 07:59:49,806 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c8813161/201e959ac9c343dbb1da15249063c29b [2024-10-13 07:59:49,808 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 07:59:49,809 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 07:59:49,810 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 07:59:49,810 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 07:59:49,814 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 07:59:49,814 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:59:49" (1/1) ... [2024-10-13 07:59:49,815 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1243e6f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:49, skipping insertion in model container [2024-10-13 07:59:49,815 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:59:49" (1/1) ... [2024-10-13 07:59:49,893 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 07:59:50,893 WARN L248 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i[228448,228461] [2024-10-13 07:59:50,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 07:59:51,009 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 07:59:51,240 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7332] [2024-10-13 07:59:51,262 WARN L248 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i[228448,228461] [2024-10-13 07:59:51,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 07:59:51,315 INFO L204 MainTranslator]: Completed translation [2024-10-13 07:59:51,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:51 WrapperNode [2024-10-13 07:59:51,316 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 07:59:51,317 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 07:59:51,317 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 07:59:51,317 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 07:59:51,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:51" (1/1) ... [2024-10-13 07:59:51,357 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:51" (1/1) ... [2024-10-13 07:59:51,414 INFO L138 Inliner]: procedures = 188, calls = 605, calls flagged for inlining = 74, calls inlined = 49, statements flattened = 1326 [2024-10-13 07:59:51,414 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 07:59:51,415 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 07:59:51,415 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 07:59:51,415 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 07:59:51,425 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:51" (1/1) ... [2024-10-13 07:59:51,425 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:51" (1/1) ... [2024-10-13 07:59:51,441 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:51" (1/1) ... [2024-10-13 07:59:51,553 INFO L175 MemorySlicer]: Split 153 memory accesses to 8 slices as follows [2, 5, 31, 9, 8, 65, 12, 21]. 42 percent of accesses are in the largest equivalence class. The 54 initializations are split as follows [2, 0, 31, 9, 0, 0, 12, 0]. The 14 writes are split as follows [0, 0, 0, 0, 0, 13, 0, 1]. [2024-10-13 07:59:51,554 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:51" (1/1) ... [2024-10-13 07:59:51,554 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:51" (1/1) ... [2024-10-13 07:59:51,584 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:51" (1/1) ... [2024-10-13 07:59:51,588 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:51" (1/1) ... [2024-10-13 07:59:51,595 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:51" (1/1) ... [2024-10-13 07:59:51,600 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:51" (1/1) ... [2024-10-13 07:59:51,614 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 07:59:51,614 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 07:59:51,615 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 07:59:51,615 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 07:59:51,615 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:51" (1/1) ... [2024-10-13 07:59:51,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 07:59:51,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:59:51,652 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 07:59:51,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 07:59:51,695 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-10-13 07:59:51,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-10-13 07:59:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure uspace_ring_map [2024-10-13 07:59:51,696 INFO L138 BoogieDeclarations]: Found implementation of procedure uspace_ring_map [2024-10-13 07:59:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_unmap_user_pages [2024-10-13 07:59:51,696 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_unmap_user_pages [2024-10-13 07:59:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 07:59:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 07:59:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-13 07:59:51,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-13 07:59:51,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-13 07:59:51,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-13 07:59:51,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-13 07:59:51,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-13 07:59:51,698 INFO L130 BoogieDeclarations]: Found specification of procedure hash_64 [2024-10-13 07:59:51,698 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_64 [2024-10-13 07:59:51,698 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_release_buffers [2024-10-13 07:59:51,698 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_release_buffers [2024-10-13 07:59:51,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-10-13 07:59:51,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-10-13 07:59:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2024-10-13 07:59:51,699 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2024-10-13 07:59:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_write [2024-10-13 07:59:51,699 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_write [2024-10-13 07:59:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 07:59:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 07:59:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-13 07:59:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-13 07:59:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-13 07:59:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-13 07:59:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-13 07:59:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-13 07:59:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-10-13 07:59:51,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-10-13 07:59:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-10-13 07:59:51,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-10-13 07:59:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_open [2024-10-13 07:59:51,700 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_open [2024-10-13 07:59:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2024-10-13 07:59:51,700 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2024-10-13 07:59:51,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 07:59:51,701 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_to_host [2024-10-13 07:59:51,701 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_to_host [2024-10-13 07:59:51,701 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-10-13 07:59:51,701 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-10-13 07:59:51,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 07:59:51,701 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_idx_inc [2024-10-13 07:59:51,701 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_idx_inc [2024-10-13 07:59:51,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 07:59:51,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-13 07:59:51,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-13 07:59:51,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-13 07:59:51,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-13 07:59:51,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-13 07:59:51,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-13 07:59:51,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-10-13 07:59:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-10-13 07:59:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_head_event [2024-10-13 07:59:51,748 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_head_event [2024-10-13 07:59:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2024-10-13 07:59:51,748 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2024-10-13 07:59:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-10-13 07:59:51,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-10-13 07:59:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-13 07:59:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-13 07:59:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-13 07:59:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-13 07:59:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-13 07:59:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-13 07:59:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-10-13 07:59:51,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-10-13 07:59:51,749 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-10-13 07:59:51,749 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-10-13 07:59:51,749 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2024-10-13 07:59:51,749 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2024-10-13 07:59:51,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 07:59:51,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-13 07:59:51,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-13 07:59:51,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-13 07:59:51,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-13 07:59:51,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-13 07:59:51,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-13 07:59:51,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-10-13 07:59:51,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-10-13 07:59:51,750 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_exit [2024-10-13 07:59:51,750 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_exit [2024-10-13 07:59:51,750 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-10-13 07:59:51,750 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-10-13 07:59:51,750 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_destroy [2024-10-13 07:59:51,750 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_destroy [2024-10-13 07:59:51,750 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_init [2024-10-13 07:59:51,750 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_init [2024-10-13 07:59:51,750 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2024-10-13 07:59:51,750 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2024-10-13 07:59:51,750 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2024-10-13 07:59:51,750 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2024-10-13 07:59:51,751 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_poll [2024-10-13 07:59:51,751 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_poll [2024-10-13 07:59:51,751 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2024-10-13 07:59:51,751 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2024-10-13 07:59:51,751 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_lookup [2024-10-13 07:59:51,751 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_lookup [2024-10-13 07:59:51,751 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_mmap [2024-10-13 07:59:51,753 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_mmap [2024-10-13 07:59:51,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 07:59:51,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 07:59:51,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 07:59:51,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-13 07:59:51,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-13 07:59:51,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-13 07:59:51,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-13 07:59:51,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-13 07:59:51,754 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-10-13 07:59:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-10-13 07:59:51,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 07:59:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 07:59:52,044 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 07:59:52,046 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 07:59:52,916 INFO L? ?]: Removed 649 outVars from TransFormulas that were not future-live. [2024-10-13 07:59:52,916 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 07:59:53,014 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 07:59:53,014 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 07:59:53,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:59:53 BoogieIcfgContainer [2024-10-13 07:59:53,015 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 07:59:53,016 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 07:59:53,016 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 07:59:53,022 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 07:59:53,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:59:49" (1/3) ... [2024-10-13 07:59:53,023 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@466a421c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:59:53, skipping insertion in model container [2024-10-13 07:59:53,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:51" (2/3) ... [2024-10-13 07:59:53,023 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@466a421c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:59:53, skipping insertion in model container [2024-10-13 07:59:53,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:59:53" (3/3) ... [2024-10-13 07:59:53,025 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2024-10-13 07:59:53,037 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 07:59:53,038 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 07:59:53,095 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 07:59:53,100 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@14172e7a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 07:59:53,100 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 07:59:53,106 INFO L276 IsEmpty]: Start isEmpty. Operand has 339 states, 223 states have (on average 1.390134529147982) internal successors, (310), 231 states have internal predecessors, (310), 83 states have call successors, (83), 31 states have call predecessors, (83), 31 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2024-10-13 07:59:53,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-10-13 07:59:53,115 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:59:53,116 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:59:53,116 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:59:53,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:59:53,120 INFO L85 PathProgramCache]: Analyzing trace with hash -769578050, now seen corresponding path program 1 times [2024-10-13 07:59:53,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:59:53,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074128656] [2024-10-13 07:59:53,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:59:53,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:59:53,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:59:53,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 07:59:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:59:53,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 07:59:53,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:59:53,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074128656] [2024-10-13 07:59:53,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074128656] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:59:53,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:59:53,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 07:59:53,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605108953] [2024-10-13 07:59:53,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:59:53,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 07:59:53,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:59:53,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 07:59:53,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 07:59:53,539 INFO L87 Difference]: Start difference. First operand has 339 states, 223 states have (on average 1.390134529147982) internal successors, (310), 231 states have internal predecessors, (310), 83 states have call successors, (83), 31 states have call predecessors, (83), 31 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-13 07:59:54,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:59:54,413 INFO L93 Difference]: Finished difference Result 809 states and 1180 transitions. [2024-10-13 07:59:54,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 07:59:54,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2024-10-13 07:59:54,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:59:54,429 INFO L225 Difference]: With dead ends: 809 [2024-10-13 07:59:54,429 INFO L226 Difference]: Without dead ends: 469 [2024-10-13 07:59:54,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 07:59:54,439 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 685 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 07:59:54,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 482 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 07:59:54,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-10-13 07:59:54,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 335. [2024-10-13 07:59:54,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 222 states have (on average 1.3693693693693694) internal successors, (304), 227 states have internal predecessors, (304), 82 states have call successors, (82), 31 states have call predecessors, (82), 30 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-10-13 07:59:54,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 466 transitions. [2024-10-13 07:59:54,515 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 466 transitions. Word has length 22 [2024-10-13 07:59:54,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:59:54,516 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 466 transitions. [2024-10-13 07:59:54,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-13 07:59:54,516 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 466 transitions. [2024-10-13 07:59:54,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-13 07:59:54,519 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:59:54,519 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:59:54,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 07:59:54,520 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:59:54,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:59:54,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1912670270, now seen corresponding path program 1 times [2024-10-13 07:59:54,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:59:54,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624284904] [2024-10-13 07:59:54,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:59:54,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:59:54,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:59:54,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 07:59:54,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:59:54,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 07:59:54,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:59:54,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624284904] [2024-10-13 07:59:54,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624284904] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:59:54,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:59:54,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 07:59:54,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956902869] [2024-10-13 07:59:54,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:59:54,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 07:59:54,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:59:54,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 07:59:54,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 07:59:54,631 INFO L87 Difference]: Start difference. First operand 335 states and 466 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-13 07:59:55,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:59:55,243 INFO L93 Difference]: Finished difference Result 471 states and 683 transitions. [2024-10-13 07:59:55,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 07:59:55,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2024-10-13 07:59:55,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:59:55,247 INFO L225 Difference]: With dead ends: 471 [2024-10-13 07:59:55,247 INFO L226 Difference]: Without dead ends: 468 [2024-10-13 07:59:55,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 07:59:55,248 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 680 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 07:59:55,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 477 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 07:59:55,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2024-10-13 07:59:55,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 334. [2024-10-13 07:59:55,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 222 states have (on average 1.364864864864865) internal successors, (303), 226 states have internal predecessors, (303), 81 states have call successors, (81), 31 states have call predecessors, (81), 30 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-10-13 07:59:55,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 464 transitions. [2024-10-13 07:59:55,297 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 464 transitions. Word has length 23 [2024-10-13 07:59:55,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:59:55,297 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 464 transitions. [2024-10-13 07:59:55,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-13 07:59:55,297 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 464 transitions. [2024-10-13 07:59:55,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-13 07:59:55,298 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:59:55,299 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:59:55,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 07:59:55,299 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:59:55,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:59:55,299 INFO L85 PathProgramCache]: Analyzing trace with hash -836972863, now seen corresponding path program 1 times [2024-10-13 07:59:55,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:59:55,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229369246] [2024-10-13 07:59:55,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:59:55,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:59:55,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:59:55,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 07:59:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:59:55,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 07:59:55,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:59:55,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229369246] [2024-10-13 07:59:55,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229369246] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:59:55,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:59:55,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 07:59:55,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983132247] [2024-10-13 07:59:55,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:59:55,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 07:59:55,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:59:55,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 07:59:55,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 07:59:55,393 INFO L87 Difference]: Start difference. First operand 334 states and 464 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-13 07:59:55,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:59:55,950 INFO L93 Difference]: Finished difference Result 468 states and 680 transitions. [2024-10-13 07:59:55,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 07:59:55,950 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2024-10-13 07:59:55,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:59:55,951 INFO L225 Difference]: With dead ends: 468 [2024-10-13 07:59:55,951 INFO L226 Difference]: Without dead ends: 0 [2024-10-13 07:59:55,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 07:59:55,954 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 675 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 297 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 07:59:55,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 476 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 07:59:55,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-13 07:59:55,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-13 07:59:55,955 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) [2024-10-13 07:59:55,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-13 07:59:55,956 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2024-10-13 07:59:55,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:59:55,956 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 07:59:55,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-13 07:59:55,956 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-13 07:59:55,956 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-13 07:59:55,960 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-13 07:59:55,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 07:59:55,962 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-13 07:59:55,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-13 07:59:57,628 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 07:59:57,650 WARN L155 FloydHoareUtils]: Requires clause for tgt_write contained old-variable. Original clause: (and (= |old(#length)| |#length|) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1) (= |old(#valid)| |#valid|)) Eliminated clause: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2024-10-13 07:59:57,652 WARN L155 FloydHoareUtils]: Requires clause for tgt_ring_init contained old-variable. Original clause: (and (= |old(#length)| |#length|) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1) (= |old(#valid)| |#valid|)) Eliminated clause: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2024-10-13 07:59:57,658 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ldv_mutex_mutex_of_device~0 [2024-10-13 07:59:57,659 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ldv_mutex_lock~0 [2024-10-13 07:59:57,659 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 [2024-10-13 07:59:57,659 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ldv_mutex_mutex_of_device~0 [2024-10-13 07:59:57,659 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ldv_mutex_lock~0 [2024-10-13 07:59:57,659 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 [2024-10-13 07:59:57,661 WARN L155 FloydHoareUtils]: Requires clause for scsi_host_lookup contained old-variable. Original clause: (and (= |old(#length)| |#length|) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1) (= |old(#valid)| |#valid|)) Eliminated clause: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2024-10-13 07:59:57,664 WARN L155 FloydHoareUtils]: Requires clause for ldv_malloc contained old-variable. Original clause: (and (= |old(#length)| |#length|) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1) (= |old(#valid)| |#valid|)) Eliminated clause: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2024-10-13 07:59:57,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:59:57 BoogieIcfgContainer [2024-10-13 07:59:57,669 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 07:59:57,670 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 07:59:57,670 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 07:59:57,670 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 07:59:57,670 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:59:53" (3/4) ... [2024-10-13 07:59:57,672 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 07:59:57,675 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_idx_inc [2024-10-13 07:59:57,675 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __raw_spin_lock_init [2024-10-13 07:59:57,675 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_exit [2024-10-13 07:59:57,675 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure uspace_ring_map [2024-10-13 07:59:57,675 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2024-10-13 07:59:57,675 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_tgt_cmd_destroy [2024-10-13 07:59:57,675 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_write [2024-10-13 07:59:57,675 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_init [2024-10-13 07:59:57,675 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2024-10-13 07:59:57,675 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure list_del [2024-10-13 07:59:57,675 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kmem_cache_free [2024-10-13 07:59:57,675 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_head_event [2024-10-13 07:59:57,675 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_poll [2024-10-13 07:59:57,676 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_unmap_user_pages [2024-10-13 07:59:57,676 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _raw_spin_lock_irqsave [2024-10-13 07:59:57,676 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_host_put [2024-10-13 07:59:57,676 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_64 [2024-10-13 07:59:57,676 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~int [2024-10-13 07:59:57,676 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2024-10-13 07:59:57,676 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_open [2024-10-13 07:59:57,676 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_host_lookup [2024-10-13 07:59:57,676 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_mmap [2024-10-13 07:59:57,676 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_release_buffers [2024-10-13 07:59:57,676 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kmem_cache_destroy [2024-10-13 07:59:57,676 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure spin_unlock_irqrestore [2024-10-13 07:59:57,676 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-10-13 07:59:57,676 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure destroy_workqueue [2024-10-13 07:59:57,676 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _copy_from_user [2024-10-13 07:59:57,676 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure list_add [2024-10-13 07:59:57,676 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_tgt_cmd_to_host [2024-10-13 07:59:57,676 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure spinlock_check [2024-10-13 07:59:57,699 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 202 nodes and edges [2024-10-13 07:59:57,701 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 77 nodes and edges [2024-10-13 07:59:57,702 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2024-10-13 07:59:57,704 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-13 07:59:57,705 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-13 07:59:57,706 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-13 07:59:57,876 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 07:59:57,876 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 07:59:57,876 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 07:59:57,877 INFO L158 Benchmark]: Toolchain (without parser) took 8067.72ms. Allocated memory was 178.3MB in the beginning and 453.0MB in the end (delta: 274.7MB). Free memory was 115.9MB in the beginning and 358.6MB in the end (delta: -242.7MB). Peak memory consumption was 208.9MB. Max. memory is 16.1GB. [2024-10-13 07:59:57,877 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 178.3MB. Free memory is still 147.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 07:59:57,877 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1506.05ms. Allocated memory is still 178.3MB. Free memory was 115.6MB in the beginning and 104.1MB in the end (delta: 11.5MB). Peak memory consumption was 87.0MB. Max. memory is 16.1GB. [2024-10-13 07:59:57,877 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.68ms. Allocated memory is still 178.3MB. Free memory was 104.1MB in the beginning and 95.1MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-13 07:59:57,877 INFO L158 Benchmark]: Boogie Preprocessor took 198.97ms. Allocated memory is still 178.3MB. Free memory was 95.1MB in the beginning and 66.5MB in the end (delta: 28.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-13 07:59:57,877 INFO L158 Benchmark]: RCFGBuilder took 1400.17ms. Allocated memory was 178.3MB in the beginning and 310.4MB in the end (delta: 132.1MB). Free memory was 66.5MB in the beginning and 194.2MB in the end (delta: -127.6MB). Peak memory consumption was 68.2MB. Max. memory is 16.1GB. [2024-10-13 07:59:57,878 INFO L158 Benchmark]: TraceAbstraction took 4653.37ms. Allocated memory was 310.4MB in the beginning and 453.0MB in the end (delta: 142.6MB). Free memory was 193.1MB in the beginning and 191.5MB in the end (delta: 1.6MB). Peak memory consumption was 149.5MB. Max. memory is 16.1GB. [2024-10-13 07:59:57,878 INFO L158 Benchmark]: Witness Printer took 206.51ms. Allocated memory is still 453.0MB. Free memory was 191.5MB in the beginning and 358.6MB in the end (delta: -167.1MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2024-10-13 07:59:57,879 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 178.3MB. Free memory is still 147.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1506.05ms. Allocated memory is still 178.3MB. Free memory was 115.6MB in the beginning and 104.1MB in the end (delta: 11.5MB). Peak memory consumption was 87.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.68ms. Allocated memory is still 178.3MB. Free memory was 104.1MB in the beginning and 95.1MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 198.97ms. Allocated memory is still 178.3MB. Free memory was 95.1MB in the beginning and 66.5MB in the end (delta: 28.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1400.17ms. Allocated memory was 178.3MB in the beginning and 310.4MB in the end (delta: 132.1MB). Free memory was 66.5MB in the beginning and 194.2MB in the end (delta: -127.6MB). Peak memory consumption was 68.2MB. Max. memory is 16.1GB. * TraceAbstraction took 4653.37ms. Allocated memory was 310.4MB in the beginning and 453.0MB in the end (delta: 142.6MB). Free memory was 193.1MB in the beginning and 191.5MB in the end (delta: 1.6MB). Peak memory consumption was 149.5MB. Max. memory is 16.1GB. * Witness Printer took 206.51ms. Allocated memory is still 453.0MB. Free memory was 191.5MB in the beginning and 358.6MB in the end (delta: -167.1MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 7332]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7332] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ldv_mutex_mutex_of_device~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ldv_mutex_lock~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ldv_mutex_mutex_of_device~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ldv_mutex_lock~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 * 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 - PositiveResult [Line: 7845]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 32 procedures, 339 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2223 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2040 mSDsluCounter, 1435 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 572 mSDsCounter, 894 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 842 IncrementalHoareTripleChecker+Invalid, 1736 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 894 mSolverCounterUnsat, 863 mSDtfsCounter, 842 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=339occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 268 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 180 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6932]: Location Invariant Derived location invariant: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - InvariantResult [Line: 7666]: Location Invariant Derived location invariant: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - InvariantResult [Line: 7065]: Location Invariant Derived location invariant: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - InvariantResult [Line: 6348]: Location Invariant Derived location invariant: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - InvariantResult [Line: 6818]: Location Invariant Derived location invariant: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - InvariantResult [Line: 7649]: Location Invariant Derived location invariant: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - InvariantResult [Line: 7075]: Location Invariant Derived location invariant: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - InvariantResult [Line: 7019]: Location Invariant Derived location invariant: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - InvariantResult [Line: 6292]: Location Invariant Derived location invariant: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - InvariantResult [Line: 6890]: Location Invariant Derived location invariant: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - InvariantResult [Line: 6597]: Location Invariant Derived location invariant: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - InvariantResult [Line: 7095]: Location Invariant Derived location invariant: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 7281]: Procedure Contract for tgt_ring_idx_inc Derived contract for procedure tgt_ring_idx_inc. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 8215]: Procedure Contract for __raw_spin_lock_init Derived contract for procedure __raw_spin_lock_init. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 7593]: Procedure Contract for tgt_ring_exit Derived contract for procedure tgt_ring_exit. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 7528]: Procedure Contract for uspace_ring_map Derived contract for procedure uspace_ring_map. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 8322]: Procedure Contract for printk Derived contract for procedure printk. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 6604]: Procedure Contract for scsi_tgt_cmd_destroy Derived contract for procedure scsi_tgt_cmd_destroy. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 7481]: Procedure Contract for tgt_write Derived contract for procedure tgt_write. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 7611]: Procedure Contract for tgt_ring_init Derived contract for procedure tgt_ring_init. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 7842]: Procedure Contract for ldv_error Derived contract for procedure ldv_error. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 8290]: Procedure Contract for list_del Derived contract for procedure list_del. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 8283]: Procedure Contract for kmem_cache_free Derived contract for procedure kmem_cache_free. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 7292]: Procedure Contract for tgt_head_event Derived contract for procedure tgt_head_event. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 7501]: Procedure Contract for tgt_poll Derived contract for procedure tgt_poll. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 6597]: Procedure Contract for scsi_unmap_user_pages Derived contract for procedure scsi_unmap_user_pages. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 8235]: Procedure Contract for _raw_spin_lock_irqsave Derived contract for procedure _raw_spin_lock_irqsave. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 8335]: Procedure Contract for scsi_host_put Derived contract for procedure scsi_host_put. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 6456]: Procedure Contract for hash_64 Derived contract for procedure hash_64. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 7849]: Procedure Contract for ldv__builtin_expect Derived contract for procedure ldv__builtin_expect. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 7580]: Procedure Contract for tgt_open Derived contract for procedure tgt_open. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 8332]: Procedure Contract for scsi_host_lookup Derived contract for procedure scsi_host_lookup. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 7556]: Procedure Contract for tgt_mmap Derived contract for procedure tgt_mmap. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 8342]: Procedure Contract for scsi_release_buffers Derived contract for procedure scsi_release_buffers. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 8280]: Procedure Contract for kmem_cache_destroy Derived contract for procedure kmem_cache_destroy. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 6348]: Procedure Contract for spin_unlock_irqrestore Derived contract for procedure spin_unlock_irqrestore. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 6377]: Procedure Contract for ldv_malloc Derived contract for procedure ldv_malloc. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 8261]: Procedure Contract for destroy_workqueue Derived contract for procedure destroy_workqueue. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 8231]: Procedure Contract for _copy_from_user Derived contract for procedure _copy_from_user. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 6292]: Procedure Contract for list_add Derived contract for procedure list_add. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 6765]: Procedure Contract for scsi_tgt_cmd_to_host Derived contract for procedure scsi_tgt_cmd_to_host. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 6342]: Procedure Contract for spinlock_check Derived contract for procedure spinlock_check. Requires: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) Ensures: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) RESULT: Ultimate proved your program to be correct! [2024-10-13 07:59:57,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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: TRUE