./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../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 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../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-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 0.3.0-?-551b009-m [2025-01-09 18:23:16,174 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 18:23:16,225 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 18:23:16,233 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 18:23:16,233 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 18:23:16,255 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 18:23:16,255 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 18:23:16,255 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 18:23:16,256 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 18:23:16,256 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 18:23:16,256 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 18:23:16,256 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 18:23:16,256 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 18:23:16,256 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 18:23:16,257 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 18:23:16,257 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 18:23:16,257 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 18:23:16,257 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 18:23:16,257 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 18:23:16,258 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 18:23:16,258 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 18:23:16,258 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 18:23:16,258 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 18:23:16,258 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 18:23:16,258 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 18:23:16,258 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 18:23:16,258 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 18:23:16,258 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 18:23:16,258 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 18:23:16,258 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 18:23:16,258 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 18:23:16,258 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 18:23:16,258 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 18:23:16,258 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 18:23:16,258 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 18:23:16,258 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 18:23:16,258 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 18:23:16,258 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 18:23:16,258 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 18:23:16,258 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 18:23:16,258 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 18:23:16,258 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 18:23:16,258 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 18:23:16,258 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 18:23:16,259 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 18:23:16,259 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 [2025-01-09 18:23:16,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 18:23:16,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 18:23:16,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 18:23:16,464 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 18:23:16,465 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 18:23:16,465 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2025-01-09 18:23:17,538 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/497ce88bf/4822a5bd8b564eb3afcaaac2fa9f441e/FLAGcff8d7a96 [2025-01-09 18:23:18,006 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 18:23:18,007 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2025-01-09 18:23:18,036 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/497ce88bf/4822a5bd8b564eb3afcaaac2fa9f441e/FLAGcff8d7a96 [2025-01-09 18:23:18,128 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/497ce88bf/4822a5bd8b564eb3afcaaac2fa9f441e [2025-01-09 18:23:18,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 18:23:18,131 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 18:23:18,132 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 18:23:18,132 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 18:23:18,135 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 18:23:18,135 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 06:23:18" (1/1) ... [2025-01-09 18:23:18,136 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a1d0f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:23:18, skipping insertion in model container [2025-01-09 18:23:18,136 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 06:23:18" (1/1) ... [2025-01-09 18:23:18,189 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 18:23:18,904 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/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] [2025-01-09 18:23:18,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 18:23:18,969 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 18:23:19,163 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7332] [2025-01-09 18:23:19,186 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/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] [2025-01-09 18:23:19,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 18:23:19,245 INFO L204 MainTranslator]: Completed translation [2025-01-09 18:23:19,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:23:19 WrapperNode [2025-01-09 18:23:19,247 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 18:23:19,248 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 18:23:19,248 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 18:23:19,249 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 18:23:19,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:23:19" (1/1) ... [2025-01-09 18:23:19,279 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:23:19" (1/1) ... [2025-01-09 18:23:19,319 INFO L138 Inliner]: procedures = 188, calls = 659, calls flagged for inlining = 74, calls inlined = 49, statements flattened = 1340 [2025-01-09 18:23:19,323 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 18:23:19,323 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 18:23:19,323 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 18:23:19,323 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 18:23:19,332 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:23:19" (1/1) ... [2025-01-09 18:23:19,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:23:19" (1/1) ... [2025-01-09 18:23:19,345 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:23:19" (1/1) ... [2025-01-09 18:23:19,450 INFO L175 MemorySlicer]: Split 204 memory accesses to 8 slices as follows [2, 32, 8, 5, 9, 21, 115, 12]. 56 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 0, 0, 9, 0, 54, 12]. The 38 writes are split as follows [0, 28, 0, 0, 0, 1, 9, 0]. [2025-01-09 18:23:19,450 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:23:19" (1/1) ... [2025-01-09 18:23:19,450 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:23:19" (1/1) ... [2025-01-09 18:23:19,486 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:23:19" (1/1) ... [2025-01-09 18:23:19,490 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:23:19" (1/1) ... [2025-01-09 18:23:19,494 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:23:19" (1/1) ... [2025-01-09 18:23:19,498 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:23:19" (1/1) ... [2025-01-09 18:23:19,501 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:23:19" (1/1) ... [2025-01-09 18:23:19,507 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 18:23:19,508 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 18:23:19,508 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 18:23:19,508 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 18:23:19,508 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:23:19" (1/1) ... [2025-01-09 18:23:19,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 18:23:19,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 18:23:19,536 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 18:23:19,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 18:23:19,556 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2025-01-09 18:23:19,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2025-01-09 18:23:19,557 INFO L130 BoogieDeclarations]: Found specification of procedure uspace_ring_map [2025-01-09 18:23:19,557 INFO L138 BoogieDeclarations]: Found implementation of procedure uspace_ring_map [2025-01-09 18:23:19,557 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_unmap_user_pages [2025-01-09 18:23:19,557 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_unmap_user_pages [2025-01-09 18:23:19,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 18:23:19,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 18:23:19,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 18:23:19,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 18:23:19,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 18:23:19,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 18:23:19,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-01-09 18:23:19,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-01-09 18:23:19,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 18:23:19,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 18:23:19,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 18:23:19,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 18:23:19,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 18:23:19,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 18:23:19,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 18:23:19,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-01-09 18:23:19,559 INFO L130 BoogieDeclarations]: Found specification of procedure hash_64 [2025-01-09 18:23:19,559 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_64 [2025-01-09 18:23:19,559 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_release_buffers [2025-01-09 18:23:19,559 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_release_buffers [2025-01-09 18:23:19,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2025-01-09 18:23:19,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2025-01-09 18:23:19,560 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2025-01-09 18:23:19,560 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2025-01-09 18:23:19,560 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_write [2025-01-09 18:23:19,560 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_write [2025-01-09 18:23:19,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 18:23:19,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 18:23:19,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 18:23:19,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 18:23:19,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 18:23:19,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 18:23:19,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 18:23:19,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-01-09 18:23:19,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2025-01-09 18:23:19,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2025-01-09 18:23:19,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2025-01-09 18:23:19,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2025-01-09 18:23:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_open [2025-01-09 18:23:19,563 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_open [2025-01-09 18:23:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2025-01-09 18:23:19,563 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2025-01-09 18:23:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 18:23:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_to_host [2025-01-09 18:23:19,563 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_to_host [2025-01-09 18:23:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2025-01-09 18:23:19,563 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2025-01-09 18:23:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 18:23:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_idx_inc [2025-01-09 18:23:19,563 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_idx_inc [2025-01-09 18:23:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 18:23:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 18:23:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 18:23:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 18:23:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 18:23:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 18:23:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 18:23:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-01-09 18:23:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-01-09 18:23:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_head_event [2025-01-09 18:23:19,563 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_head_event [2025-01-09 18:23:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2025-01-09 18:23:19,563 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2025-01-09 18:23:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2025-01-09 18:23:19,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2025-01-09 18:23:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 18:23:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 18:23:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 18:23:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 18:23:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 18:23:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-09 18:23:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-01-09 18:23:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-01-09 18:23:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2025-01-09 18:23:19,564 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2025-01-09 18:23:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2025-01-09 18:23:19,564 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2025-01-09 18:23:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 18:23:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 18:23:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 18:23:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 18:23:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 18:23:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 18:23:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-01-09 18:23:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-01-09 18:23:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-01-09 18:23:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_exit [2025-01-09 18:23:19,564 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_exit [2025-01-09 18:23:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2025-01-09 18:23:19,564 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2025-01-09 18:23:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_destroy [2025-01-09 18:23:19,564 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_destroy [2025-01-09 18:23:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_init [2025-01-09 18:23:19,564 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_init [2025-01-09 18:23:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2025-01-09 18:23:19,565 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2025-01-09 18:23:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2025-01-09 18:23:19,565 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2025-01-09 18:23:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_poll [2025-01-09 18:23:19,565 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_poll [2025-01-09 18:23:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2025-01-09 18:23:19,565 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2025-01-09 18:23:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_lookup [2025-01-09 18:23:19,565 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_lookup [2025-01-09 18:23:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_mmap [2025-01-09 18:23:19,565 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_mmap [2025-01-09 18:23:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 18:23:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 18:23:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 18:23:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 18:23:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 18:23:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 18:23:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 18:23:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 18:23:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2025-01-09 18:23:19,565 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2025-01-09 18:23:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 18:23:19,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 18:23:19,822 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 18:23:19,825 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 18:23:21,104 INFO L? ?]: Removed 641 outVars from TransFormulas that were not future-live. [2025-01-09 18:23:21,105 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 18:23:21,121 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 18:23:21,121 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 18:23:21,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 06:23:21 BoogieIcfgContainer [2025-01-09 18:23:21,124 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 18:23:21,126 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 18:23:21,126 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 18:23:21,129 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 18:23:21,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 06:23:18" (1/3) ... [2025-01-09 18:23:21,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15f7e060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 06:23:21, skipping insertion in model container [2025-01-09 18:23:21,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:23:19" (2/3) ... [2025-01-09 18:23:21,130 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15f7e060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 06:23:21, skipping insertion in model container [2025-01-09 18:23:21,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 06:23:21" (3/3) ... [2025-01-09 18:23:21,130 INFO L128 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2025-01-09 18:23:21,142 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 18:23:21,143 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i that has 32 procedures, 413 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-01-09 18:23:21,190 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 18:23:21,197 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;@28a8c13f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 18:23:21,197 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 18:23:21,200 INFO L276 IsEmpty]: Start isEmpty. Operand has 413 states, 297 states have (on average 1.292929292929293) internal successors, (384), 305 states have internal predecessors, (384), 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) [2025-01-09 18:23:21,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-01-09 18:23:21,206 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:23:21,210 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 18:23:21,210 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:23:21,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:23:21,216 INFO L85 PathProgramCache]: Analyzing trace with hash 730551934, now seen corresponding path program 1 times [2025-01-09 18:23:21,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:23:21,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700111488] [2025-01-09 18:23:21,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:23:21,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:23:21,438 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-09 18:23:21,512 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-09 18:23:21,512 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:23:21,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:23:21,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 18:23:21,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:23:21,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700111488] [2025-01-09 18:23:21,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700111488] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:23:21,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 18:23:21,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 18:23:21,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149635289] [2025-01-09 18:23:21,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:23:21,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 18:23:21,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:23:21,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 18:23:21,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 18:23:21,758 INFO L87 Difference]: Start difference. First operand has 413 states, 297 states have (on average 1.292929292929293) internal successors, (384), 305 states have internal predecessors, (384), 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 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2025-01-09 18:23:22,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:23:22,736 INFO L93 Difference]: Finished difference Result 820 states and 1105 transitions. [2025-01-09 18:23:22,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 18:23:22,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 25 [2025-01-09 18:23:22,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:23:22,746 INFO L225 Difference]: With dead ends: 820 [2025-01-09 18:23:22,746 INFO L226 Difference]: Without dead ends: 406 [2025-01-09 18:23:22,750 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 18:23:22,752 INFO L435 NwaCegarLoop]: 540 mSDtfsCounter, 523 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-01-09 18:23:22,752 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 540 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-01-09 18:23:22,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2025-01-09 18:23:22,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 406. [2025-01-09 18:23:22,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 293 states have (on average 1.2798634812286689) internal successors, (375), 298 states have internal predecessors, (375), 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) [2025-01-09 18:23:22,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 537 transitions. [2025-01-09 18:23:22,802 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 537 transitions. Word has length 25 [2025-01-09 18:23:22,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:23:22,803 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 537 transitions. [2025-01-09 18:23:22,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2025-01-09 18:23:22,803 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 537 transitions. [2025-01-09 18:23:22,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-01-09 18:23:22,805 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:23:22,805 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 18:23:22,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 18:23:22,805 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:23:22,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:23:22,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1172059518, now seen corresponding path program 1 times [2025-01-09 18:23:22,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:23:22,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807181285] [2025-01-09 18:23:22,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:23:22,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:23:22,933 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-09 18:23:22,953 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-09 18:23:22,953 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:23:22,953 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:23:23,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 18:23:23,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:23:23,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807181285] [2025-01-09 18:23:23,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807181285] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:23:23,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 18:23:23,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 18:23:23,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548152014] [2025-01-09 18:23:23,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:23:23,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 18:23:23,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:23:23,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 18:23:23,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 18:23:23,045 INFO L87 Difference]: Start difference. First operand 406 states and 537 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2025-01-09 18:23:23,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:23:23,647 INFO L93 Difference]: Finished difference Result 408 states and 538 transitions. [2025-01-09 18:23:23,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 18:23:23,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 26 [2025-01-09 18:23:23,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:23:23,653 INFO L225 Difference]: With dead ends: 408 [2025-01-09 18:23:23,654 INFO L226 Difference]: Without dead ends: 405 [2025-01-09 18:23:23,654 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 18:23:23,655 INFO L435 NwaCegarLoop]: 534 mSDtfsCounter, 516 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 18:23:23,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 534 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 18:23:23,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2025-01-09 18:23:23,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2025-01-09 18:23:23,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 293 states have (on average 1.2764505119453924) internal successors, (374), 297 states have internal predecessors, (374), 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) [2025-01-09 18:23:23,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 535 transitions. [2025-01-09 18:23:23,693 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 535 transitions. Word has length 26 [2025-01-09 18:23:23,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:23:23,693 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 535 transitions. [2025-01-09 18:23:23,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2025-01-09 18:23:23,695 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 535 transitions. [2025-01-09 18:23:23,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-01-09 18:23:23,696 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:23:23,696 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 18:23:23,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 18:23:23,696 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:23:23,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:23:23,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1973897601, now seen corresponding path program 1 times [2025-01-09 18:23:23,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:23:23,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543874665] [2025-01-09 18:23:23,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:23:23,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:23:23,782 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-01-09 18:23:23,802 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-01-09 18:23:23,802 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:23:23,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:23:23,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 18:23:23,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:23:23,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543874665] [2025-01-09 18:23:23,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543874665] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:23:23,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 18:23:23,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 18:23:23,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47891129] [2025-01-09 18:23:23,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:23:23,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 18:23:23,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:23:23,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 18:23:23,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 18:23:23,870 INFO L87 Difference]: Start difference. First operand 405 states and 535 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2025-01-09 18:23:24,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:23:24,648 INFO L93 Difference]: Finished difference Result 405 states and 535 transitions. [2025-01-09 18:23:24,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 18:23:24,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 27 [2025-01-09 18:23:24,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:23:24,654 INFO L225 Difference]: With dead ends: 405 [2025-01-09 18:23:24,654 INFO L226 Difference]: Without dead ends: 0 [2025-01-09 18:23:24,654 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 18:23:24,655 INFO L435 NwaCegarLoop]: 532 mSDtfsCounter, 512 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-09 18:23:24,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 532 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-09 18:23:24,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-01-09 18:23:24,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-01-09 18:23:24,655 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) [2025-01-09 18:23:24,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-01-09 18:23:24,656 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2025-01-09 18:23:24,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:23:24,656 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-09 18:23:24,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2025-01-09 18:23:24,656 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-01-09 18:23:24,656 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-01-09 18:23:24,660 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 18:23:24,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 18:23:24,662 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-01-09 18:23:24,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-01-09 18:23:26,287 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 18:23:26,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 06:23:26 BoogieIcfgContainer [2025-01-09 18:23:26,305 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 18:23:26,305 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 18:23:26,305 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 18:23:26,306 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 18:23:26,306 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 06:23:21" (3/4) ... [2025-01-09 18:23:26,307 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 18:23:26,313 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_idx_inc [2025-01-09 18:23:26,314 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure __raw_spin_lock_init [2025-01-09 18:23:26,314 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_exit [2025-01-09 18:23:26,314 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure uspace_ring_map [2025-01-09 18:23:26,314 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2025-01-09 18:23:26,314 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_tgt_cmd_destroy [2025-01-09 18:23:26,314 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_write [2025-01-09 18:23:26,314 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_init [2025-01-09 18:23:26,314 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2025-01-09 18:23:26,314 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure list_del [2025-01-09 18:23:26,314 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure kmem_cache_free [2025-01-09 18:23:26,315 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_head_event [2025-01-09 18:23:26,315 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_poll [2025-01-09 18:23:26,315 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_unmap_user_pages [2025-01-09 18:23:26,315 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure _raw_spin_lock_irqsave [2025-01-09 18:23:26,315 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_host_put [2025-01-09 18:23:26,315 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_64 [2025-01-09 18:23:26,315 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~int [2025-01-09 18:23:26,315 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2025-01-09 18:23:26,315 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_open [2025-01-09 18:23:26,315 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_host_lookup [2025-01-09 18:23:26,315 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_mmap [2025-01-09 18:23:26,315 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_release_buffers [2025-01-09 18:23:26,315 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure kmem_cache_destroy [2025-01-09 18:23:26,316 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure spin_unlock_irqrestore [2025-01-09 18:23:26,316 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2025-01-09 18:23:26,316 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure destroy_workqueue [2025-01-09 18:23:26,316 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure _copy_from_user [2025-01-09 18:23:26,316 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure list_add [2025-01-09 18:23:26,316 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_tgt_cmd_to_host [2025-01-09 18:23:26,316 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure spinlock_check [2025-01-09 18:23:26,332 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 159 nodes and edges [2025-01-09 18:23:26,333 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 62 nodes and edges [2025-01-09 18:23:26,334 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2025-01-09 18:23:26,336 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-01-09 18:23:26,337 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-01-09 18:23:26,338 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 18:23:26,471 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 18:23:26,473 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 18:23:26,473 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 18:23:26,474 INFO L158 Benchmark]: Toolchain (without parser) took 8342.33ms. Allocated memory was 142.6MB in the beginning and 302.0MB in the end (delta: 159.4MB). Free memory was 102.4MB in the beginning and 92.2MB in the end (delta: 10.2MB). Peak memory consumption was 172.3MB. Max. memory is 16.1GB. [2025-01-09 18:23:26,474 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 18:23:26,474 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1115.03ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 65.3MB in the end (delta: 37.1MB). Peak memory consumption was 102.8MB. Max. memory is 16.1GB. [2025-01-09 18:23:26,474 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.06ms. Allocated memory is still 142.6MB. Free memory was 65.3MB in the beginning and 56.6MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 18:23:26,474 INFO L158 Benchmark]: Boogie Preprocessor took 183.90ms. Allocated memory is still 142.6MB. Free memory was 56.6MB in the beginning and 71.9MB in the end (delta: -15.3MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2025-01-09 18:23:26,474 INFO L158 Benchmark]: RCFGBuilder took 1616.68ms. Allocated memory was 142.6MB in the beginning and 302.0MB in the end (delta: 159.4MB). Free memory was 71.9MB in the beginning and 145.5MB in the end (delta: -73.5MB). Peak memory consumption was 82.6MB. Max. memory is 16.1GB. [2025-01-09 18:23:26,475 INFO L158 Benchmark]: TraceAbstraction took 5179.18ms. Allocated memory is still 302.0MB. Free memory was 144.8MB in the beginning and 114.6MB in the end (delta: 30.1MB). Peak memory consumption was 89.4MB. Max. memory is 16.1GB. [2025-01-09 18:23:26,475 INFO L158 Benchmark]: Witness Printer took 167.44ms. Allocated memory is still 302.0MB. Free memory was 114.6MB in the beginning and 92.2MB in the end (delta: 22.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-09 18:23:26,476 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1115.03ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 65.3MB in the end (delta: 37.1MB). Peak memory consumption was 102.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.06ms. Allocated memory is still 142.6MB. Free memory was 65.3MB in the beginning and 56.6MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 183.90ms. Allocated memory is still 142.6MB. Free memory was 56.6MB in the beginning and 71.9MB in the end (delta: -15.3MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. * RCFGBuilder took 1616.68ms. Allocated memory was 142.6MB in the beginning and 302.0MB in the end (delta: 159.4MB). Free memory was 71.9MB in the beginning and 145.5MB in the end (delta: -73.5MB). Peak memory consumption was 82.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5179.18ms. Allocated memory is still 302.0MB. Free memory was 144.8MB in the beginning and 114.6MB in the end (delta: 30.1MB). Peak memory consumption was 89.4MB. Max. memory is 16.1GB. * Witness Printer took 167.44ms. Allocated memory is still 302.0MB. Free memory was 114.6MB in the beginning and 92.2MB in the end (delta: 22.5MB). Peak memory consumption was 25.2MB. 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] * 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, 413 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1551 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1551 mSDsluCounter, 1606 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 1606 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=413occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 183 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, ConComCheckerStatistics: 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: 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: 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: 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)) RESULT: Ultimate proved your program to be correct! [2025-01-09 18:23:26,494 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE