./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a3a08b-bc02-4dc3-b46e-28333473f307/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a3a08b-bc02-4dc3-b46e-28333473f307/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a3a08b-bc02-4dc3-b46e-28333473f307/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a3a08b-bc02-4dc3-b46e-28333473f307/bin/uautomizer-verify-aQ6SnzHsRB/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a3a08b-bc02-4dc3-b46e-28333473f307/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a3a08b-bc02-4dc3-b46e-28333473f307/bin/uautomizer-verify-aQ6SnzHsRB --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-dev-d790fec [2024-11-28 02:40:11,942 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:40:12,012 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a3a08b-bc02-4dc3-b46e-28333473f307/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 02:40:12,018 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:40:12,018 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:40:12,044 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:40:12,045 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:40:12,045 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:40:12,045 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:40:12,046 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:40:12,046 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:40:12,046 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:40:12,046 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:40:12,046 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:40:12,047 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:40:12,047 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:40:12,047 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:40:12,047 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:40:12,047 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:40:12,047 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:40:12,048 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:40:12,048 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:40:12,048 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:40:12,048 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:40:12,048 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:40:12,048 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:40:12,049 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:40:12,049 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:40:12,049 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:40:12,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:40:12,049 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:40:12,049 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:40:12,050 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:40:12,050 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:40:12,050 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:40:12,050 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:40:12,050 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:40:12,051 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:40:12,051 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:40:12,051 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:40:12,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:40:12,051 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:40:12,051 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:40:12,052 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:40:12,052 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:40:12,052 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a3a08b-bc02-4dc3-b46e-28333473f307/bin/uautomizer-verify-aQ6SnzHsRB 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 [2024-11-28 02:40:12,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:40:12,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:40:12,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:40:12,412 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:40:12,412 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:40:12,414 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a3a08b-bc02-4dc3-b46e-28333473f307/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2024-11-28 02:40:15,488 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a3a08b-bc02-4dc3-b46e-28333473f307/bin/uautomizer-verify-aQ6SnzHsRB/data/519f960b3/6264214d70714682ab357bb8345d8b8b/FLAG7fbbba535 [2024-11-28 02:40:16,163 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:40:16,164 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a3a08b-bc02-4dc3-b46e-28333473f307/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2024-11-28 02:40:16,218 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a3a08b-bc02-4dc3-b46e-28333473f307/bin/uautomizer-verify-aQ6SnzHsRB/data/519f960b3/6264214d70714682ab357bb8345d8b8b/FLAG7fbbba535 [2024-11-28 02:40:16,239 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a3a08b-bc02-4dc3-b46e-28333473f307/bin/uautomizer-verify-aQ6SnzHsRB/data/519f960b3/6264214d70714682ab357bb8345d8b8b [2024-11-28 02:40:16,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:40:16,246 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:40:16,248 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:40:16,250 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:40:16,255 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:40:16,258 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:40:16" (1/1) ... [2024-11-28 02:40:16,259 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a32c58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:16, skipping insertion in model container [2024-11-28 02:40:16,260 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:40:16" (1/1) ... [2024-11-28 02:40:16,424 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:40:17,775 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a3a08b-bc02-4dc3-b46e-28333473f307/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i[228448,228461] [2024-11-28 02:40:17,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:40:17,906 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:40:18,259 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7332] [2024-11-28 02:40:18,313 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a3a08b-bc02-4dc3-b46e-28333473f307/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i[228448,228461] [2024-11-28 02:40:18,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:40:18,407 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:40:18,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:18 WrapperNode [2024-11-28 02:40:18,408 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:40:18,409 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:40:18,409 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:40:18,410 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:40:18,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:18" (1/1) ... [2024-11-28 02:40:18,459 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:18" (1/1) ... [2024-11-28 02:40:18,565 INFO L138 Inliner]: procedures = 188, calls = 659, calls flagged for inlining = 74, calls inlined = 49, statements flattened = 1340 [2024-11-28 02:40:18,566 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:40:18,566 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:40:18,566 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:40:18,566 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:40:18,581 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:18" (1/1) ... [2024-11-28 02:40:18,581 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:18" (1/1) ... [2024-11-28 02:40:18,605 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:18" (1/1) ... [2024-11-28 02:40:18,747 INFO L175 MemorySlicer]: Split 204 memory accesses to 8 slices as follows [2, 32, 9, 8, 5, 12, 21, 115]. 56 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 9, 0, 0, 12, 0, 54]. The 38 writes are split as follows [0, 28, 0, 0, 0, 0, 1, 9]. [2024-11-28 02:40:18,747 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:18" (1/1) ... [2024-11-28 02:40:18,747 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:18" (1/1) ... [2024-11-28 02:40:18,794 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:18" (1/1) ... [2024-11-28 02:40:18,797 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:18" (1/1) ... [2024-11-28 02:40:18,804 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:18" (1/1) ... [2024-11-28 02:40:18,818 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:18" (1/1) ... [2024-11-28 02:40:18,828 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:18" (1/1) ... [2024-11-28 02:40:18,855 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:40:18,856 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:40:18,860 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:40:18,860 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:40:18,861 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:18" (1/1) ... [2024-11-28 02:40:18,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:40:18,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a3a08b-bc02-4dc3-b46e-28333473f307/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:40:18,915 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a3a08b-bc02-4dc3-b46e-28333473f307/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:40:18,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a3a08b-bc02-4dc3-b46e-28333473f307/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:40:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-28 02:40:18,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-28 02:40:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure uspace_ring_map [2024-11-28 02:40:18,955 INFO L138 BoogieDeclarations]: Found implementation of procedure uspace_ring_map [2024-11-28 02:40:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_unmap_user_pages [2024-11-28 02:40:18,956 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_unmap_user_pages [2024-11-28 02:40:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 02:40:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 02:40:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 02:40:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 02:40:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 02:40:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 02:40:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-28 02:40:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-28 02:40:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 02:40:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 02:40:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 02:40:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 02:40:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 02:40:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 02:40:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 02:40:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-28 02:40:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure hash_64 [2024-11-28 02:40:18,958 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_64 [2024-11-28 02:40:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_release_buffers [2024-11-28 02:40:18,958 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_release_buffers [2024-11-28 02:40:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-28 02:40:18,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-28 02:40:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2024-11-28 02:40:18,959 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2024-11-28 02:40:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_write [2024-11-28 02:40:18,959 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_write [2024-11-28 02:40:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 02:40:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 02:40:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 02:40:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 02:40:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 02:40:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 02:40:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 02:40:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-28 02:40:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-28 02:40:18,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-28 02:40:18,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-28 02:40:18,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-28 02:40:18,961 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_open [2024-11-28 02:40:18,961 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_open [2024-11-28 02:40:18,961 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2024-11-28 02:40:18,961 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2024-11-28 02:40:18,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 02:40:18,962 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_to_host [2024-11-28 02:40:18,962 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_to_host [2024-11-28 02:40:18,962 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-28 02:40:18,962 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-28 02:40:18,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:40:18,962 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_idx_inc [2024-11-28 02:40:18,962 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_idx_inc [2024-11-28 02:40:18,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:40:18,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 02:40:18,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 02:40:18,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 02:40:18,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 02:40:18,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 02:40:18,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 02:40:18,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-28 02:40:18,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-28 02:40:18,963 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_head_event [2024-11-28 02:40:18,963 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_head_event [2024-11-28 02:40:18,964 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2024-11-28 02:40:18,964 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2024-11-28 02:40:18,964 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-28 02:40:18,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-28 02:40:18,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 02:40:18,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 02:40:18,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 02:40:18,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 02:40:18,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 02:40:18,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 02:40:18,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-28 02:40:18,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-28 02:40:18,965 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-28 02:40:18,965 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-28 02:40:18,965 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2024-11-28 02:40:18,966 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2024-11-28 02:40:18,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:40:18,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 02:40:18,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 02:40:18,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 02:40:18,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 02:40:18,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 02:40:18,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-28 02:40:18,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-28 02:40:18,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-28 02:40:18,967 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_exit [2024-11-28 02:40:18,967 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_exit [2024-11-28 02:40:18,967 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-28 02:40:18,967 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-28 02:40:18,968 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_destroy [2024-11-28 02:40:18,968 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_destroy [2024-11-28 02:40:18,968 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_init [2024-11-28 02:40:18,968 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_init [2024-11-28 02:40:18,968 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2024-11-28 02:40:18,968 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2024-11-28 02:40:18,968 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2024-11-28 02:40:18,969 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2024-11-28 02:40:18,969 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_poll [2024-11-28 02:40:18,969 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_poll [2024-11-28 02:40:18,969 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2024-11-28 02:40:18,969 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2024-11-28 02:40:18,969 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_lookup [2024-11-28 02:40:18,969 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_lookup [2024-11-28 02:40:18,969 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_mmap [2024-11-28 02:40:18,969 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_mmap [2024-11-28 02:40:18,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:40:18,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:40:18,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 02:40:18,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 02:40:18,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 02:40:18,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 02:40:18,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 02:40:18,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 02:40:18,970 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-28 02:40:18,971 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-28 02:40:18,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:40:18,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:40:19,547 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:40:19,552 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:40:22,648 INFO L? ?]: Removed 641 outVars from TransFormulas that were not future-live. [2024-11-28 02:40:22,648 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:40:22,683 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:40:22,683 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 02:40:22,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:40:22 BoogieIcfgContainer [2024-11-28 02:40:22,684 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:40:22,686 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:40:22,686 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:40:22,694 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:40:22,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:40:16" (1/3) ... [2024-11-28 02:40:22,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@743d12c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:40:22, skipping insertion in model container [2024-11-28 02:40:22,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:18" (2/3) ... [2024-11-28 02:40:22,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@743d12c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:40:22, skipping insertion in model container [2024-11-28 02:40:22,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:40:22" (3/3) ... [2024-11-28 02:40:22,697 INFO L128 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2024-11-28 02:40:22,715 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:40:22,719 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. [2024-11-28 02:40:22,804 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:40:22,818 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;@1c407711, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:40:22,818 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:40:22,824 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) [2024-11-28 02:40:22,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-28 02:40:22,836 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:40:22,837 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] [2024-11-28 02:40:22,837 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:40:22,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:22,843 INFO L85 PathProgramCache]: Analyzing trace with hash 730551934, now seen corresponding path program 1 times [2024-11-28 02:40:22,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:22,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838568136] [2024-11-28 02:40:22,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:40:22,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:40:23,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:40:23,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:40:23,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838568136] [2024-11-28 02:40:23,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838568136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:40:23,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:40:23,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:40:23,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190451233] [2024-11-28 02:40:23,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:40:23,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:40:23,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:40:23,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:40:23,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:40:23,882 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) [2024-11-28 02:40:24,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:40:25,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:40:25,029 INFO L93 Difference]: Finished difference Result 820 states and 1105 transitions. [2024-11-28 02:40:25,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:40:25,032 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 [2024-11-28 02:40:25,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:40:25,045 INFO L225 Difference]: With dead ends: 820 [2024-11-28 02:40:25,045 INFO L226 Difference]: Without dead ends: 406 [2024-11-28 02:40:25,056 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 [2024-11-28 02:40:25,058 INFO L435 NwaCegarLoop]: 540 mSDtfsCounter, 523 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:40:25,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 540 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 02:40:25,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2024-11-28 02:40:25,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 406. [2024-11-28 02:40:25,134 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) [2024-11-28 02:40:25,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 537 transitions. [2024-11-28 02:40:25,149 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 537 transitions. Word has length 25 [2024-11-28 02:40:25,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:40:25,154 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 537 transitions. [2024-11-28 02:40:25,154 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) [2024-11-28 02:40:25,154 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 537 transitions. [2024-11-28 02:40:25,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-28 02:40:25,159 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:40:25,159 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] [2024-11-28 02:40:25,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:40:25,160 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:40:25,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:25,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1172059518, now seen corresponding path program 1 times [2024-11-28 02:40:25,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:25,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112296311] [2024-11-28 02:40:25,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:40:25,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:40:25,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:40:25,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:40:25,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112296311] [2024-11-28 02:40:25,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112296311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:40:25,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:40:25,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:40:25,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419496051] [2024-11-28 02:40:25,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:40:25,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:40:25,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:40:25,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:40:25,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:40:25,664 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) [2024-11-28 02:40:27,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:40:27,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:40:27,306 INFO L93 Difference]: Finished difference Result 408 states and 538 transitions. [2024-11-28 02:40:27,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:40:27,307 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 [2024-11-28 02:40:27,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:40:27,315 INFO L225 Difference]: With dead ends: 408 [2024-11-28 02:40:27,319 INFO L226 Difference]: Without dead ends: 405 [2024-11-28 02:40:27,319 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 [2024-11-28 02:40:27,320 INFO L435 NwaCegarLoop]: 534 mSDtfsCounter, 516 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s 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, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:40:27,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 534 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 02:40:27,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-11-28 02:40:27,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2024-11-28 02:40:27,392 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) [2024-11-28 02:40:27,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 535 transitions. [2024-11-28 02:40:27,403 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 535 transitions. Word has length 26 [2024-11-28 02:40:27,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:40:27,403 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 535 transitions. [2024-11-28 02:40:27,403 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) [2024-11-28 02:40:27,403 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 535 transitions. [2024-11-28 02:40:27,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-28 02:40:27,405 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:40:27,405 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] [2024-11-28 02:40:27,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:40:27,410 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:40:27,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:27,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1973897601, now seen corresponding path program 1 times [2024-11-28 02:40:27,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:27,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215778757] [2024-11-28 02:40:27,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:40:27,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:40:27,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:40:27,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:40:27,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215778757] [2024-11-28 02:40:27,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215778757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:40:27,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:40:27,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:40:27,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060641955] [2024-11-28 02:40:27,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:40:27,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:40:27,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:40:27,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:40:27,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:40:27,822 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) [2024-11-28 02:40:28,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:40:29,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:40:29,005 INFO L93 Difference]: Finished difference Result 405 states and 535 transitions. [2024-11-28 02:40:29,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:40:29,016 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 [2024-11-28 02:40:29,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:40:29,017 INFO L225 Difference]: With dead ends: 405 [2024-11-28 02:40:29,017 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 02:40:29,018 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 [2024-11-28 02:40:29,019 INFO L435 NwaCegarLoop]: 532 mSDtfsCounter, 512 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:40:29,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 532 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 02:40:29,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 02:40:29,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 02:40:29,021 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) [2024-11-28 02:40:29,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 02:40:29,022 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2024-11-28 02:40:29,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:40:29,022 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:40:29,022 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) [2024-11-28 02:40:29,023 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 02:40:29,023 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 02:40:29,026 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 02:40:29,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:40:29,029 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-28 02:40:29,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 02:40:32,378 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:40:32,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:40:32 BoogieIcfgContainer [2024-11-28 02:40:32,406 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:40:32,406 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:40:32,407 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:40:32,407 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:40:32,408 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:40:22" (3/4) ... [2024-11-28 02:40:32,410 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 02:40:32,422 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_idx_inc [2024-11-28 02:40:32,423 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __raw_spin_lock_init [2024-11-28 02:40:32,423 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_exit [2024-11-28 02:40:32,423 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure uspace_ring_map [2024-11-28 02:40:32,423 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2024-11-28 02:40:32,424 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_tgt_cmd_destroy [2024-11-28 02:40:32,424 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_write [2024-11-28 02:40:32,424 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_init [2024-11-28 02:40:32,425 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2024-11-28 02:40:32,425 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure list_del [2024-11-28 02:40:32,425 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kmem_cache_free [2024-11-28 02:40:32,425 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_head_event [2024-11-28 02:40:32,425 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_poll [2024-11-28 02:40:32,425 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_unmap_user_pages [2024-11-28 02:40:32,425 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _raw_spin_lock_irqsave [2024-11-28 02:40:32,425 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_host_put [2024-11-28 02:40:32,425 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_64 [2024-11-28 02:40:32,425 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~int [2024-11-28 02:40:32,425 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2024-11-28 02:40:32,426 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_open [2024-11-28 02:40:32,426 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_host_lookup [2024-11-28 02:40:32,426 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_mmap [2024-11-28 02:40:32,426 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_release_buffers [2024-11-28 02:40:32,426 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kmem_cache_destroy [2024-11-28 02:40:32,426 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure spin_unlock_irqrestore [2024-11-28 02:40:32,426 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-11-28 02:40:32,426 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure destroy_workqueue [2024-11-28 02:40:32,426 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _copy_from_user [2024-11-28 02:40:32,426 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure list_add [2024-11-28 02:40:32,427 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_tgt_cmd_to_host [2024-11-28 02:40:32,427 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure spinlock_check [2024-11-28 02:40:32,459 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 159 nodes and edges [2024-11-28 02:40:32,462 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 62 nodes and edges [2024-11-28 02:40:32,465 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2024-11-28 02:40:32,467 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-28 02:40:32,469 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-28 02:40:32,471 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 02:40:32,726 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a3a08b-bc02-4dc3-b46e-28333473f307/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:40:32,728 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a3a08b-bc02-4dc3-b46e-28333473f307/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:40:32,728 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:40:32,729 INFO L158 Benchmark]: Toolchain (without parser) took 16482.53ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 109.5MB in the beginning and 153.7MB in the end (delta: -44.2MB). Peak memory consumption was 236.1MB. Max. memory is 16.1GB. [2024-11-28 02:40:32,729 INFO L158 Benchmark]: CDTParser took 2.24ms. Allocated memory is still 142.6MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:40:32,729 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2160.66ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 109.2MB in the beginning and 342.7MB in the end (delta: -233.4MB). Peak memory consumption was 75.9MB. Max. memory is 16.1GB. [2024-11-28 02:40:32,730 INFO L158 Benchmark]: Boogie Procedure Inliner took 156.46ms. Allocated memory is still 427.8MB. Free memory was 342.0MB in the beginning and 333.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:40:32,731 INFO L158 Benchmark]: Boogie Preprocessor took 289.01ms. Allocated memory is still 427.8MB. Free memory was 333.6MB in the beginning and 307.0MB in the end (delta: 26.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 02:40:32,731 INFO L158 Benchmark]: RCFGBuilder took 3827.75ms. Allocated memory is still 427.8MB. Free memory was 307.0MB in the beginning and 306.9MB in the end (delta: 102.0kB). Peak memory consumption was 93.3MB. Max. memory is 16.1GB. [2024-11-28 02:40:32,731 INFO L158 Benchmark]: TraceAbstraction took 9720.28ms. Allocated memory is still 427.8MB. Free memory was 306.9MB in the beginning and 174.9MB in the end (delta: 132.1MB). Peak memory consumption was 134.0MB. Max. memory is 16.1GB. [2024-11-28 02:40:32,731 INFO L158 Benchmark]: Witness Printer took 321.41ms. Allocated memory is still 427.8MB. Free memory was 174.9MB in the beginning and 153.7MB in the end (delta: 21.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:40:32,734 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.24ms. Allocated memory is still 142.6MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2160.66ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 109.2MB in the beginning and 342.7MB in the end (delta: -233.4MB). Peak memory consumption was 75.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 156.46ms. Allocated memory is still 427.8MB. Free memory was 342.0MB in the beginning and 333.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 289.01ms. Allocated memory is still 427.8MB. Free memory was 333.6MB in the beginning and 307.0MB in the end (delta: 26.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3827.75ms. Allocated memory is still 427.8MB. Free memory was 307.0MB in the beginning and 306.9MB in the end (delta: 102.0kB). Peak memory consumption was 93.3MB. Max. memory is 16.1GB. * TraceAbstraction took 9720.28ms. Allocated memory is still 427.8MB. Free memory was 306.9MB in the beginning and 174.9MB in the end (delta: 132.1MB). Peak memory consumption was 134.0MB. Max. memory is 16.1GB. * Witness Printer took 321.41ms. Allocated memory is still 427.8MB. Free memory was 174.9MB in the beginning and 153.7MB in the end (delta: 21.2MB). Peak memory consumption was 16.8MB. 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: 6.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1551 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1551 mSDsluCounter, 1606 SdHoareTripleChecker+Invalid, 3.7s 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: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s 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! [2024-11-28 02:40:32,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a3a08b-bc02-4dc3-b46e-28333473f307/bin/uautomizer-verify-aQ6SnzHsRB/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