./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 61a67961 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-wip.fs.cvc5-61a6796-m [2024-10-14 15:20:04,898 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 15:20:04,960 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-14 15:20:04,965 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 15:20:04,966 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 15:20:04,987 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 15:20:04,988 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 15:20:04,988 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 15:20:04,989 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 15:20:04,989 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 15:20:04,989 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 15:20:04,989 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 15:20:04,990 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 15:20:04,990 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 15:20:04,990 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 15:20:04,991 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 15:20:04,991 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 15:20:04,991 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 15:20:04,991 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 15:20:04,992 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 15:20:04,992 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 15:20:04,992 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 15:20:04,993 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 15:20:04,993 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 15:20:04,993 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 15:20:04,993 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 15:20:04,994 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 15:20:04,994 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 15:20:04,994 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 15:20:04,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 15:20:04,995 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 15:20:04,995 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 15:20:04,995 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 15:20:04,995 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 15:20:04,995 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 15:20:04,996 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 15:20:04,996 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 15:20:04,996 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 15:20:04,996 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 15:20:04,997 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3b9005361fd0095f8dbb62f5fee3acdc88198cbc01de43b11979176397f6891 [2024-10-14 15:20:05,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 15:20:05,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 15:20:05,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 15:20:05,241 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 15:20:05,241 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 15:20:05,242 INFO L431 ainManager$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 [2024-10-14 15:20:06,526 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 15:20:06,884 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 15:20:06,884 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 [2024-10-14 15:20:06,914 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9032a3361/db5964ef706b4b35bf18ab3f789e34e0/FLAGa118794bd [2024-10-14 15:20:07,089 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9032a3361/db5964ef706b4b35bf18ab3f789e34e0 [2024-10-14 15:20:07,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 15:20:07,092 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 15:20:07,093 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 15:20:07,093 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 15:20:07,097 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 15:20:07,097 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:20:07" (1/1) ... [2024-10-14 15:20:07,098 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@312063f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:20:07, skipping insertion in model container [2024-10-14 15:20:07,098 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:20:07" (1/1) ... [2024-10-14 15:20:07,234 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 15:20:08,207 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] [2024-10-14 15:20:08,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 15:20:08,315 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 15:20:08,520 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7332] [2024-10-14 15:20:08,541 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] [2024-10-14 15:20:08,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 15:20:08,597 INFO L204 MainTranslator]: Completed translation [2024-10-14 15:20:08,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:20:08 WrapperNode [2024-10-14 15:20:08,598 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 15:20:08,599 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 15:20:08,599 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 15:20:08,599 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 15:20:08,605 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:20:08" (1/1) ... [2024-10-14 15:20:08,651 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:20:08" (1/1) ... [2024-10-14 15:20:08,711 INFO L138 Inliner]: procedures = 188, calls = 605, calls flagged for inlining = 74, calls inlined = 49, statements flattened = 1326 [2024-10-14 15:20:08,711 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 15:20:08,712 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 15:20:08,712 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 15:20:08,712 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 15:20:08,720 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:20:08" (1/1) ... [2024-10-14 15:20:08,721 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:20:08" (1/1) ... [2024-10-14 15:20:08,731 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:20:08" (1/1) ... [2024-10-14 15:20:08,847 INFO L175 MemorySlicer]: Split 153 memory accesses to 8 slices as follows [8, 2, 9, 31, 5, 12, 21, 65]. 42 percent of accesses are in the largest equivalence class. The 54 initializations are split as follows [0, 2, 9, 31, 0, 12, 0, 0]. The 14 writes are split as follows [0, 0, 0, 0, 0, 0, 1, 13]. [2024-10-14 15:20:08,849 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:20:08" (1/1) ... [2024-10-14 15:20:08,850 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:20:08" (1/1) ... [2024-10-14 15:20:08,888 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:20:08" (1/1) ... [2024-10-14 15:20:08,900 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:20:08" (1/1) ... [2024-10-14 15:20:08,908 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:20:08" (1/1) ... [2024-10-14 15:20:08,914 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:20:08" (1/1) ... [2024-10-14 15:20:08,927 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 15:20:08,929 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 15:20:08,929 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 15:20:08,929 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 15:20:08,930 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:20:08" (1/1) ... [2024-10-14 15:20:08,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 15:20:08,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 15:20:08,957 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) [2024-10-14 15:20:08,959 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 [2024-10-14 15:20:08,996 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-10-14 15:20:08,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-10-14 15:20:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure uspace_ring_map [2024-10-14 15:20:08,997 INFO L138 BoogieDeclarations]: Found implementation of procedure uspace_ring_map [2024-10-14 15:20:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_unmap_user_pages [2024-10-14 15:20:08,997 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_unmap_user_pages [2024-10-14 15:20:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 15:20:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 15:20:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-14 15:20:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-14 15:20:08,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-14 15:20:08,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-14 15:20:08,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-14 15:20:08,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-14 15:20:08,999 INFO L130 BoogieDeclarations]: Found specification of procedure hash_64 [2024-10-14 15:20:08,999 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_64 [2024-10-14 15:20:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_release_buffers [2024-10-14 15:20:09,000 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_release_buffers [2024-10-14 15:20:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-10-14 15:20:09,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-10-14 15:20:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2024-10-14 15:20:09,000 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2024-10-14 15:20:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_write [2024-10-14 15:20:09,000 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_write [2024-10-14 15:20:09,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 15:20:09,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 15:20:09,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-14 15:20:09,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-14 15:20:09,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-14 15:20:09,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-14 15:20:09,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-14 15:20:09,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-14 15:20:09,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-10-14 15:20:09,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-10-14 15:20:09,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-10-14 15:20:09,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-10-14 15:20:09,002 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_open [2024-10-14 15:20:09,002 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_open [2024-10-14 15:20:09,002 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2024-10-14 15:20:09,002 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2024-10-14 15:20:09,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-14 15:20:09,002 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_to_host [2024-10-14 15:20:09,002 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_to_host [2024-10-14 15:20:09,002 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-10-14 15:20:09,002 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-10-14 15:20:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 15:20:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_idx_inc [2024-10-14 15:20:09,003 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_idx_inc [2024-10-14 15:20:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 15:20:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-14 15:20:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-14 15:20:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-14 15:20:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-14 15:20:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-14 15:20:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-14 15:20:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-10-14 15:20:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-10-14 15:20:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_head_event [2024-10-14 15:20:09,003 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_head_event [2024-10-14 15:20:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2024-10-14 15:20:09,003 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2024-10-14 15:20:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-10-14 15:20:09,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-10-14 15:20:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-14 15:20:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-14 15:20:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-14 15:20:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-14 15:20:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-14 15:20:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-14 15:20:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-10-14 15:20:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-10-14 15:20:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-10-14 15:20:09,004 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-10-14 15:20:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2024-10-14 15:20:09,006 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2024-10-14 15:20:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 15:20:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-14 15:20:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-14 15:20:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-14 15:20:09,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-14 15:20:09,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-14 15:20:09,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-14 15:20:09,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-10-14 15:20:09,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-10-14 15:20:09,007 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_exit [2024-10-14 15:20:09,007 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_exit [2024-10-14 15:20:09,007 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-10-14 15:20:09,007 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-10-14 15:20:09,008 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_destroy [2024-10-14 15:20:09,008 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_destroy [2024-10-14 15:20:09,008 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_init [2024-10-14 15:20:09,008 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_init [2024-10-14 15:20:09,008 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2024-10-14 15:20:09,008 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2024-10-14 15:20:09,008 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2024-10-14 15:20:09,009 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2024-10-14 15:20:09,009 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_poll [2024-10-14 15:20:09,009 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_poll [2024-10-14 15:20:09,009 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2024-10-14 15:20:09,009 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2024-10-14 15:20:09,009 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_lookup [2024-10-14 15:20:09,009 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_lookup [2024-10-14 15:20:09,009 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_mmap [2024-10-14 15:20:09,009 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_mmap [2024-10-14 15:20:09,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 15:20:09,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 15:20:09,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 15:20:09,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-14 15:20:09,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-14 15:20:09,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-14 15:20:09,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-14 15:20:09,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-14 15:20:09,010 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-10-14 15:20:09,011 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-10-14 15:20:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 15:20:09,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 15:20:09,381 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 15:20:09,384 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 15:20:10,371 INFO L? ?]: Removed 649 outVars from TransFormulas that were not future-live. [2024-10-14 15:20:10,372 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 15:20:10,464 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 15:20:10,464 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 15:20:10,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:20:10 BoogieIcfgContainer [2024-10-14 15:20:10,465 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 15:20:10,466 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 15:20:10,466 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 15:20:10,473 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 15:20:10,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:20:07" (1/3) ... [2024-10-14 15:20:10,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@631b04ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:20:10, skipping insertion in model container [2024-10-14 15:20:10,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:20:08" (2/3) ... [2024-10-14 15:20:10,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@631b04ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:20:10, skipping insertion in model container [2024-10-14 15:20:10,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:20:10" (3/3) ... [2024-10-14 15:20:10,478 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2024-10-14 15:20:10,494 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 15:20:10,494 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 15:20:10,588 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 15:20:10,594 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;@1b718139, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 15:20:10,594 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 15:20:10,603 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) [2024-10-14 15:20:10,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-10-14 15:20:10,613 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:20:10,614 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] [2024-10-14 15:20:10,614 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:20:10,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:20:10,618 INFO L85 PathProgramCache]: Analyzing trace with hash -769578050, now seen corresponding path program 1 times [2024-10-14 15:20:10,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:20:10,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302854462] [2024-10-14 15:20:10,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:20:10,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:20:10,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:20:11,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 15:20:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:20:11,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 15:20:11,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:20:11,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302854462] [2024-10-14 15:20:11,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302854462] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 15:20:11,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 15:20:11,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 15:20:11,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743665624] [2024-10-14 15:20:11,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 15:20:11,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 15:20:11,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:20:11,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 15:20:11,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 15:20:11,109 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) [2024-10-14 15:20:11,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 15:20:11,889 INFO L93 Difference]: Finished difference Result 809 states and 1180 transitions. [2024-10-14 15:20:11,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 15:20:11,895 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 [2024-10-14 15:20:11,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 15:20:11,907 INFO L225 Difference]: With dead ends: 809 [2024-10-14 15:20:11,907 INFO L226 Difference]: Without dead ends: 469 [2024-10-14 15:20:11,917 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 [2024-10-14 15:20:11,920 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 685 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 15:20:11,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 482 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 15:20:11,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-10-14 15:20:11,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 335. [2024-10-14 15:20:11,986 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) [2024-10-14 15:20:11,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 466 transitions. [2024-10-14 15:20:11,992 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 466 transitions. Word has length 22 [2024-10-14 15:20:11,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 15:20:11,993 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 466 transitions. [2024-10-14 15:20:11,993 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) [2024-10-14 15:20:11,993 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 466 transitions. [2024-10-14 15:20:11,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-14 15:20:11,995 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:20:11,995 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] [2024-10-14 15:20:11,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 15:20:11,996 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:20:11,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:20:11,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1912670270, now seen corresponding path program 1 times [2024-10-14 15:20:11,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:20:11,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667023769] [2024-10-14 15:20:11,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:20:11,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:20:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:20:12,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 15:20:12,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:20:12,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 15:20:12,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:20:12,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667023769] [2024-10-14 15:20:12,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667023769] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 15:20:12,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 15:20:12,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 15:20:12,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39477334] [2024-10-14 15:20:12,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 15:20:12,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 15:20:12,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:20:12,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 15:20:12,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 15:20:12,124 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) [2024-10-14 15:20:12,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 15:20:12,703 INFO L93 Difference]: Finished difference Result 471 states and 683 transitions. [2024-10-14 15:20:12,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 15:20:12,703 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 [2024-10-14 15:20:12,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 15:20:12,707 INFO L225 Difference]: With dead ends: 471 [2024-10-14 15:20:12,710 INFO L226 Difference]: Without dead ends: 468 [2024-10-14 15:20:12,710 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 [2024-10-14 15:20:12,711 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, 740 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 [2024-10-14 15:20:12,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 477 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 15:20:12,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2024-10-14 15:20:12,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 334. [2024-10-14 15:20:12,746 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) [2024-10-14 15:20:12,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 464 transitions. [2024-10-14 15:20:12,749 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 464 transitions. Word has length 23 [2024-10-14 15:20:12,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 15:20:12,749 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 464 transitions. [2024-10-14 15:20:12,749 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) [2024-10-14 15:20:12,750 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 464 transitions. [2024-10-14 15:20:12,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-14 15:20:12,751 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:20:12,751 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] [2024-10-14 15:20:12,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 15:20:12,751 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:20:12,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:20:12,752 INFO L85 PathProgramCache]: Analyzing trace with hash -836972863, now seen corresponding path program 1 times [2024-10-14 15:20:12,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:20:12,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325298929] [2024-10-14 15:20:12,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:20:12,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:20:12,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:20:12,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 15:20:12,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:20:12,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 15:20:12,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:20:12,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325298929] [2024-10-14 15:20:12,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325298929] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 15:20:12,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 15:20:12,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 15:20:12,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119181577] [2024-10-14 15:20:12,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 15:20:12,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 15:20:12,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:20:12,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 15:20:12,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 15:20:12,861 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) [2024-10-14 15:20:13,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 15:20:13,508 INFO L93 Difference]: Finished difference Result 468 states and 680 transitions. [2024-10-14 15:20:13,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 15:20:13,509 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 [2024-10-14 15:20:13,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 15:20:13,509 INFO L225 Difference]: With dead ends: 468 [2024-10-14 15:20:13,509 INFO L226 Difference]: Without dead ends: 0 [2024-10-14 15:20:13,511 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 [2024-10-14 15:20:13,511 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 675 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 297 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 15:20:13,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 476 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 15:20:13,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-14 15:20:13,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-14 15:20:13,520 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) [2024-10-14 15:20:13,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-14 15:20:13,520 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2024-10-14 15:20:13,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 15:20:13,520 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-14 15:20:13,521 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) [2024-10-14 15:20:13,521 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-14 15:20:13,521 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-14 15:20:13,525 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-14 15:20:13,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 15:20:13,529 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-14 15:20:13,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-14 15:20:15,146 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 15:20:15,177 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)) [2024-10-14 15:20:15,179 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)) [2024-10-14 15:20:15,196 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ldv_mutex_mutex_of_device~0 [2024-10-14 15:20:15,196 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ldv_mutex_lock~0 [2024-10-14 15:20:15,197 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 [2024-10-14 15:20:15,197 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ldv_mutex_mutex_of_device~0 [2024-10-14 15:20:15,197 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ldv_mutex_lock~0 [2024-10-14 15:20:15,197 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 [2024-10-14 15:20:15,199 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)) [2024-10-14 15:20:15,203 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)) [2024-10-14 15:20:15,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 03:20:15 BoogieIcfgContainer [2024-10-14 15:20:15,208 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 15:20:15,209 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 15:20:15,209 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 15:20:15,209 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 15:20:15,210 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:20:10" (3/4) ... [2024-10-14 15:20:15,212 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 15:20:15,215 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_idx_inc [2024-10-14 15:20:15,216 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __raw_spin_lock_init [2024-10-14 15:20:15,216 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_exit [2024-10-14 15:20:15,216 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure uspace_ring_map [2024-10-14 15:20:15,216 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2024-10-14 15:20:15,216 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_tgt_cmd_destroy [2024-10-14 15:20:15,216 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_write [2024-10-14 15:20:15,216 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_init [2024-10-14 15:20:15,216 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2024-10-14 15:20:15,216 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure list_del [2024-10-14 15:20:15,216 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kmem_cache_free [2024-10-14 15:20:15,217 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_head_event [2024-10-14 15:20:15,217 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_poll [2024-10-14 15:20:15,217 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_unmap_user_pages [2024-10-14 15:20:15,217 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _raw_spin_lock_irqsave [2024-10-14 15:20:15,217 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_host_put [2024-10-14 15:20:15,217 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_64 [2024-10-14 15:20:15,217 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~int [2024-10-14 15:20:15,217 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2024-10-14 15:20:15,217 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_open [2024-10-14 15:20:15,217 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_host_lookup [2024-10-14 15:20:15,218 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_mmap [2024-10-14 15:20:15,218 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_release_buffers [2024-10-14 15:20:15,218 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kmem_cache_destroy [2024-10-14 15:20:15,218 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure spin_unlock_irqrestore [2024-10-14 15:20:15,218 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-10-14 15:20:15,218 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure destroy_workqueue [2024-10-14 15:20:15,218 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _copy_from_user [2024-10-14 15:20:15,218 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure list_add [2024-10-14 15:20:15,219 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_tgt_cmd_to_host [2024-10-14 15:20:15,219 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure spinlock_check [2024-10-14 15:20:15,241 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 202 nodes and edges [2024-10-14 15:20:15,243 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 77 nodes and edges [2024-10-14 15:20:15,244 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2024-10-14 15:20:15,245 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-14 15:20:15,247 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-14 15:20:15,248 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-14 15:20:15,428 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 15:20:15,428 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 15:20:15,428 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 15:20:15,429 INFO L158 Benchmark]: Toolchain (without parser) took 8337.03ms. Allocated memory was 184.5MB in the beginning and 352.3MB in the end (delta: 167.8MB). Free memory was 107.1MB in the beginning and 245.2MB in the end (delta: -138.1MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. [2024-10-14 15:20:15,429 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 104.9MB. Free memory was 76.4MB in the beginning and 76.3MB in the end (delta: 118.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 15:20:15,429 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1505.73ms. Allocated memory is still 184.5MB. Free memory was 107.1MB in the beginning and 84.3MB in the end (delta: 22.8MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. [2024-10-14 15:20:15,430 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.25ms. Allocated memory is still 184.5MB. Free memory was 84.3MB in the beginning and 74.8MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-14 15:20:15,430 INFO L158 Benchmark]: Boogie Preprocessor took 214.95ms. Allocated memory is still 184.5MB. Free memory was 74.8MB in the beginning and 112.6MB in the end (delta: -37.8MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2024-10-14 15:20:15,430 INFO L158 Benchmark]: RCFGBuilder took 1535.75ms. Allocated memory was 184.5MB in the beginning and 274.7MB in the end (delta: 90.2MB). Free memory was 111.6MB in the beginning and 110.2MB in the end (delta: 1.3MB). Peak memory consumption was 96.7MB. Max. memory is 16.1GB. [2024-10-14 15:20:15,431 INFO L158 Benchmark]: TraceAbstraction took 4742.46ms. Allocated memory was 274.7MB in the beginning and 352.3MB in the end (delta: 77.6MB). Free memory was 110.2MB in the beginning and 271.4MB in the end (delta: -161.2MB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. [2024-10-14 15:20:15,431 INFO L158 Benchmark]: Witness Printer took 219.42ms. Allocated memory is still 352.3MB. Free memory was 271.4MB in the beginning and 245.2MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-10-14 15:20:15,432 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 104.9MB. Free memory was 76.4MB in the beginning and 76.3MB in the end (delta: 118.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1505.73ms. Allocated memory is still 184.5MB. Free memory was 107.1MB in the beginning and 84.3MB in the end (delta: 22.8MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 112.25ms. Allocated memory is still 184.5MB. Free memory was 84.3MB in the beginning and 74.8MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 214.95ms. Allocated memory is still 184.5MB. Free memory was 74.8MB in the beginning and 112.6MB in the end (delta: -37.8MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1535.75ms. Allocated memory was 184.5MB in the beginning and 274.7MB in the end (delta: 90.2MB). Free memory was 111.6MB in the beginning and 110.2MB in the end (delta: 1.3MB). Peak memory consumption was 96.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4742.46ms. Allocated memory was 274.7MB in the beginning and 352.3MB in the end (delta: 77.6MB). Free memory was 110.2MB in the beginning and 271.4MB in the end (delta: -161.2MB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. * Witness Printer took 219.42ms. Allocated memory is still 352.3MB. Free memory was 271.4MB in the beginning and 245.2MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. 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: 3.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2220 SdHoareTripleChecker+Valid, 1.7s 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, 0.4s 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! [2024-10-14 15:20:15,459 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